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MCITP 70-640: Global Catalog Server
 
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Check out http://YouTube.com/ITFreeTraining or http://itfreetraining.com for more of our always free training videos. Global Catalog Servers contain a partial replica for every object in Active Directory. A Global Catalog Server is used to find objects in any domain in the forest. Any Domain Controller can be made into a Global Catalog Server. This video looks at how to remove or make a Domain Controller into a Global Catalog Server and also the reasons why and where you should put Global Catalog Servers. Global Catalog Servers are used to find objects in any domain in the forest but it should be remembered that this does not give the user access to that object. Unless the user has the correct permissions they will not be able to access resources in other domains. Global Catalog Servers also contain information about groups that span across domains and services that work at the forest level. How to change a Domain Controller to a Global Catalog Server 04:18 Using the admin tool Active Directory Users and Computers to navigate to the computer account for your Domain Controller. By default this will be located in the Domain Controllers OU. Open the properties for the Domain Controller and select the button NTDS settings. Deselect or select the tickbox Global Catalog. Windows will do the rest. Reasons to deploy Global Catalog Servers Reason 1 Domain Controllers generate a security token for a user when they first login. If the user is in a group that spans multi--domains, that Domain Controller will need to contact a Global Catalog to get information about that group. Reason 2 If a user logs in using a Universal Principal Name (UPN), that is, they log in using a user name in the form of [email protected], a Domain Controller will need to access a Global Catalog Server before the log in is completed. Reason 3 Global Catalog Servers work as an index to the forest. If you perform any searches on the forest you will need to contact a Global Catalog Server. Reason 4 Microsoft recommends that any network that is separated by a Wide Area Network have a Global Catalog Server deployed at that location. This will ensure that users can log on if the Wide Area Network is down. In order for a computer to contact a Global Catalog Server, ports 389 (LDAP) and 3267 (Global Catalog) need to be opened. If these ports are not open then the user will not be able to use the remote Global Catalog Server. Reason 5 Some software requires a Global Catalog Server in order to run. Exchange is a big user of the Global Catalog Server. If you have a decent amount of Exchange users on your network, you should consider deploying a Global Catalog Server close to these users. Reasons not to deploy a Global Catalog Server Global Catalog Servers put more load on the server in the form of searches and lookups from the client. Global Catalogs need to keep their index up to date. This requires more network bandwidth. In order to store the Global Catalog Server, you are required to have additional hard disk space on your server.
Views: 162934 itfreetraining
0.2.1 Global Catalog
 
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Global Catalog
Global Catalog - In Depth Part -1
 
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In this video we will discuss some basics of Global Catalog, it functions, Where it stores data, how to explore GC data and about partial attribute sets
Views: 1308 ServerGeeks
Global catalog (GC) Server
 
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Global catalog (GC) Server
Views: 1295 kuldeep patel
Global Catalog Server in Hindi/Urdu
 
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This Video Covers following; • A global catalog is a domain controller that stores a copy of all Active Directory objects in a forest. The global catalog stores a full copy of all objects in the directory for its host domain and a partial copy of all objects for all other domains in the forest. • The partial copies of all domain objects included in the global catalog are those most commonly used in user search operations. • A global catalog is created automatically on the initial domain controller in the forest. You can add global catalog functionality to other domain controllers or change the default location of the global catalog to another domain controller. A global catalog performs the following directory roles: • Finds objects A global catalog enables user searches for directory information throughout all domains in a forest, regardless of where the data is stored. Searches within a forest are performed with maximum speed and minimum network traffic. When you search for people or printers from the Start menu or choose the Entire Directory option within a query, you are searching a global catalog. Once you enter your search request, it is routed to the default global catalog port 3268 and sent to a global catalog for resolution. • Supplies user principal name authentication A global catalog resolves user principal names (UPNs) when the authenticating domain controller does not have knowledge of the account. For example, if a user’s account is located in example1.microsoft.com and the user decides to log on with a user principal name of [email protected] from a computer located in example2.microsoft.com, the domain controller in example2.microsoft.com will be unable to find the user’s account, and will then contact a global catalog to complete the logon process. • Group Membership When User logs on. Universal Group membership info save in GC Server. More Detail about Global Catalog: • The global catalog is a distributed data repository that contains a searchable, partial representation of every object in every domain in a multidomain Active Directory Domain Services (AD DS) forest. • Searches that are directed to the global catalog are faster because they do not involve referrals to different domain controllers. • Global Catalog does not contain all the attributes of each object. Instead, the GC contains the subset of attributes that are most likely to be useful in cross domain searches these attributes might include First Name, Display name and location. • We can add new attribute in GC index using Schema Management console. • In a single domain, all domain controllers should be configured as holders of the global catalog; however, in a multi-domain environment, the Infrastructure master should not be a global catalog server. Which domain controllers are configured to hold a copy of the global catalog depends on replication traffic and network bandwidth. Many organizations are opting to make every domain controller a global catalog server. What is ADC? Why we need to deploy ADC ? +ADC Deployment Pre Steps.
Views: 7489 Umer Azeem
MCSA PART-3 / Global Catalog Server Explained in Hindi
 
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Guys in this video we will learn what is gloabal catalog server and how does it work ? global catalog server kya hai aaur kaise kam karta hai iske feature and functions ke b are me sikhenge . AGAR KOI V DOUBT HO TO PLZ FEEL FREE TO ASK . ENJOY THIS VIDEO . SUBSCRIBE LIKE COMMENT SHARE VIDEOS:- SO ENJOY THIS VIDEO IF YOU ARE NEW HERE SO: SUBSCRIBE LIKE COMMENTS SHARE WITH FRIENDS THANKS SUBCRIBE OUR CHANNEL AND LEARN ETHICAL HACKING SERVER CCNA NETWORKING LINUX NETWORK SECURITY AND MANY TRENDS TECH TOPIC IF YOU ENJOY THIS VIDEO SO LIKE COMMENTS AND SHARE WITH FRIENDS . THANKS BYE SOME MORE ETHICAL HACKING VIDEO LINKS:- What is Ethical Hacking ? How to Become Ethical Hacker in Hindi https://youtu.be/36LLmekdjAQ What is Hacking | Hacker | Tools For Hacking Explained in Hindi https://youtu.be/YK76vwX9HFI Tools of Ethical Hacking Explained full course |CEH| https://youtu.be/qfMkGi6kzNw what is footprinting ? types of footprinting Explained in Hindi https://youtu.be/d9W2pMKHDvs What is Footprinting ? part 2 |ETHICAL HACKING FULL COURSE https://youtu.be/FqVGFMLoVc0 SS7 Attack and Man in the middle attack Explained in hindi https://youtu.be/zdaCI4JEuZQ Backdoor क्या है ? हैकर से कैसे कंप्यूटर मोबाइल को सिक्योर करे in Hindi https://youtu.be/zlPoAPappl4 CCNA Introduction Complete Course in Hindihttps://youtu.be/175usOVa6-8 ENJOY THE VIDEO... BYE FOLLOW US ON :- https://www.youtube.com/infotechshesh https://www.facebook.com/infotechshesh https://twitter.com/infotechsh
Views: 2180 infotechshesh
06 AD Foundations Global Catalogs - Install Domain Controllers
 
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Active Directory (AD) is a directory service that Microsoft developed for Windows domain networks. It is included in most Windows Server operating systems as a set of processes and services. Initially, Active Directory was only in charge of centralized domain management.
Views: 12 COM TECH by PRASAD
MCITP 70-640: Active Directory forest and trees
 
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Active Directory has forests and trees which are ways of representing multiple domains. Check out http://YouTube.com/ITFreeTraining or http://itfreetraining.com for more of our always free training videos.This video looks at how domains sharing the same namespace are considered a tree. Domains in separate namespaces are considered separate trees in the same forest. Tree When you have multiple domains in the same namespace (e.g., ITFreeTraining.com, west.ITFreeTraining.com, and sales.ITFreeTraining.com), they are considered to be in the same tree. The tree also supports multiple levels of domains. For example, you could have west.sales.ITFreeTraining.com and east.ITFreeTraining.com in the same tree. Forest A forest is a collection of one or more domains which may have one or more trees. What makes a forest unique is that it shares the same schema. The schema defines what and how Active Directory objects are stored. The schema defines the database for the whole forest but it should be remembered that each domain in the forest has its own copy of the database based on the schema. Trusts Parent and child domains are automatically linked by a trust. Users in different domains can use these trusts to access resources in another domain assuming that they have access. Trees in the forest are linked together via a trust automatically. This ensures that any users in any domain in the forest can access any resource in the forest to which they have access. Global Catalog In order for users to find resources in any domain in the forest (remember that each domain has a separate database), Domain Controllers can be made into Global Catalog Servers. A Global Catalog Server contains partial information about every object in the forest. Using this information, the user can conduct searches.
Views: 218814 itfreetraining
MCITP 70-640: Uninstalling Active Directory
 
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At any stage you can add and remove domain controllers from Active Directory. This video looks at how to remove the last domain controller from a child domain. When this occurs, the Active Directory database will be removed and with it anything that was stored in it. This video looks at how to remove a child domain; however, the same process could be used to remove the last domain controller in the forest. Demo at 03:46 If you need to remove a domain controller that has failed from Active Directory, refer to video http://itfreetraining.com/70-640/seizing-roles/. Operational Master Roles If the domain controller is holding any operational master roles, these can be moved manually or DCPromo will automatically move them to another domain controller when the domain controller is demoted. Refer to our video on moving operation master roles for information on how to move operational master roles: http://itfreetraining.com/70-640/moving-operation-roles/. If you want to check if your domain controller is holding any operational master roles you can run the following command from the command prompt: NetDom Query FSMO Global Catalog Servers If you are removing a domain controller that is a global catalog server, you should consider the effect that this will have on your domain. Even in a single forest, single domain environment global catalog servers are used by applications for performing searches in Active Directory. For this reason you should always have at least one domain controller in your domain. Refer to http://itfreetraining.com/70-640/global-catalog-servers/ for information about the role a global catalog server has on your network. Effects of removing the database Before removing the last domain controller and thus Active Directory, you should consider what is stored in Active Directory and thus what you are losing. Removing the database will remove any accounts in that domain but will also remove any certificates that are stored in Active Directory as well. Before removing the last domain controller it is recommended that the domain controller be shut down for a period of time before it is demoted. If no problems are found, start the domain controller back up and then demote it. Demonstration To check if the domain controller is holding any operational master roles run the command: Run NetDemo Query FSMO To demote the server run the command DCPromo. The wizard will ask you if this is the last domain controller in the domain. If this domain controller is the last domain controller, tick this box. If you still have other functional domain controllers on the network you should remove these before ticking this box to ensure the domain is removed cleanly. If there are domain controllers that are still in the domain but are not operational and thus will not be used on the network again, tick the option this is the last domain controller in the domain. Ticking this box will remove the domain even if there are domain controllers that are still registered in the Active Directory database. If you are getting errors in DCPromo, run DCPromo with the /forceremoval switch and it will ignore these errors. DCPromo will ask you to set a local administrator password. When Active Directory has been removed you will need this password to login locally to the server. If you still have a domain controller left in the domain, the server will become a member server and you can still use a domain account to login to the server. See http://YouTube.com/ITFreeTraining or http://itfreetraining.com for our always free training videos. This is only one video from the many free courses available on YouTube.
Views: 37986 itfreetraining
Server 2016 How to Configure Global Catalog-Hindi
 
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Explained step by step..!!
Views: 387 Narayan Baghel
Active Directory Partition : In Depth - Part 1
 
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In this video we have covered all types of AD logical partition, how to explore each partition and what all contents we have in these partitions, using ADSI Edit tool. Discussed about Global Catalog, using power shell , NTDSUTIL and other useful notes. Join our FB page for more updates: https://facebook.com/CBTGeeks Checkout our website for interesting articles: http://cbtgeeks.com Feel free to Like, Share, Subscribe or leave your comments below Credits: Music: http://www.bensound.com
Views: 7463 CBT Geeks
8  Global Catalog Servers
 
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Views: 5083 Shamis Hosni
How to Specify A Domain Controller and Global Catalog Server for the Directory Synchronization Agent
 
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How to Specify A Domain Controller and Global Catalog Server for the Directory Synchronization Agent
81 Configure the Global Catalog Server
 
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VTC Installing and Configuring Windows Server 2012 (70-410)
Views: 592 Phạm Trung Hiếu
Active Directory Ders 22 - Site, BridgeHead Server, Global Catalog Read Only Domain Controller
 
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Site, BridgeHead Server, Global Catalog Read Only Domain Controller
Views: 6 Volkan KEKEZOGLU
HOW TO ENABLE GLOBAL CATALOG IN DOMAIN CONTROLLER
 
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HOW TO ENABLE GLOBAL CATALOG IN DOMAIN CONTROLLER
Views: 6183 doitwithjeet
How To Manage Global Catalog in Active Directory Quick & Simple
 
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How To Manage Global Catalog Servers in Active Directory Quick & Simple. See documented video and more on http://www.arondmessaging.ro/
Views: 8318 AMTC
MCITP 70-640: Operators Master Role Placement Global catalog
 
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In Active Directory there are five operations master roles known as FSMO roles. This video looks at which Domain Controllers you should put these roles on and also which Domain Controllers you should make into Global Catalog Servers. There are five operations master roles. The Schema and Domain Naming Masters are forest wide so there will only one of each of these roles regardless of how many domains you have in your forest. The PDC Emulator, RID Master and Infrastructure Master are domain wide. There will always be 3 operations master roles per domain, one of each. When considering where to put the operations master roles, you should consider the availability of the operations role and what effect not having the operations master role available during an outage will have on your network. Schema Master (Forest wide) The Schema Master is generally found in the root domain in a multiple domain environment. On most networks it will not be used that often. For this reason availability is not a big issue so for ease of administration it will often be put on the same Domain Controller that has the Domain Naming Master. The Schema Master operations master role is not affected whether the Domain Controller is a Global Catalog Server or not. Domain Naming Master (Forest wide) The Domain Naming Master is required when domains are added or removed from the forest. It does require Global Catalog calls when domains are added or removed. For this reason it is recommended to make it a Global Catalog Server. However, this will not affect operations if it is not. PDC Emulator The PDC Emulator has the final say on authentication. For this reason the PDC Emulator will generally be placed on the network with the most users. The PDC Emulator can be made a Global Catalog Server; however, administrators will often remove the Global Catalog from the PDC Emulator if performance on the PDC Emulator becomes a problem. RID Master The RID Master allocates blocks of RIDs. For this reason it does not have to be on the fastest Domain Controller or on the fastest link. Domain Controllers will request RIDs before they run out. The PDC Emulator generally uses more RIDs than other Domain Controllers on the network and thus a lot of administrators will place the RID operations master role on the same Domain Controller that is holding the PDC Emulator. Whether the Domain Controller is a Global Catalog Server or not does not affect the operation of the RID Master. Infrastructure Master The Infrastructure Master role tracks references in multi-domain environments. In a single domain network the Infrastructure operations master role is not that important. In a multi-domain environment the role of the Infrastructure Master becomes more important. The choice of whether to make this a Global Catalog Server or not can affect its ability to keep cross domain reference up to date. If you have Windows Server 2000 or 2003 Domain Controllers on your network, you need to ensure the Infrastructure Master is not a Global Catalog Server or all your Domain Controllers on the network will become Global Catalog Servers. In a pure Windows Server 2008 environment, it does not matter whether you make the Domain Controller a Global Catalog Server or not. Disadvantages of making a Domain Controller a Global Catalog Server Making a Domain Controller a Global Catalog Server will increase the amount of hard disk space that it requires and also the amount of network bandwidth that it will use. Nowadays it is not as big of a concern as it was when Windows Server 2000 came out. Global Catalog Servers are also used by clients to perform searches and to look up objects. This can increase the load on the Domain Controller. See http://YouTube.com/ITFreeTraining or http://itfreetraining.com for are always free training videos. This is only one video from the many free courses available on YouTube.
Views: 43881 itfreetraining
Introduction to Active Directory Infrastructure in Windows Server 2012
 
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Info Level: Intermediate Presenter: Eli the Computer Guy Date Created: February 25, 2013 Length of Class: 38:56 Tracks Windows Server 2012 Prerequisites Introduction to Windows Server 2012 Purpose of Class This class teaches students the basic concepts in building out Active Directory Infrastructure for Windows Server 2012. Class Notes DC's or Domain Controllers are the server that control the Active Directory Service Domains are made up of Domain Controllers and Member PC's and Servers. There can be multiple Domain Controllers in a Domain for fault Tolerance and Load Balancing. DC's keep data synchronized through replication. The schedule for replication is called the "replication strategy". DC's can be grouped into Sites. Sites are comprised of Domain Controllers located at the same geographic location. Sites are used to reduce bandwidth consumption used due to Replication. DC's are normally set to be Read/ Write. For security purposes you can make DC's Read only. Read Only DC's are used at Remote Offices to lessen the danger of Hacking. Sites are connected through Site Links Sites can Replicate Through Site Link Bridges. Site Link Bridges are kind of like routers for replication. Global Catalog Servers store searchable Indexes of the Active Directory database. There should be at least one Global catalog server at each site. It is best to use Microsoft's built in DNS Server on a Windows Server 2012 network. You can use a Unix DNS Server, but... WINS (Windows Internet Naming Service) was Microsoft's attempt to compete with DNS. You will rarely ever see it, but if you have very old legacy systems you may need to create a WINS server. Using Microsoft's DHCP Server is usually the best bet on a Windows Domain. Using Windows DNS and DHCP allow for multiple servers for fault tolerance and increased security.
Views: 551347 Eli the Computer Guy
Introduction to Lightweight Directory Services
 
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Lightweight Directory Services is a lightweight version of Active Directory Domain Services. This video provides an introduction to Lightweight Directory Services and what it can and cannot do. Download the PDF handout http://itfreetraining.com/handouts/adlds/adlds-intro.pdf AD LDS Active Directory Lightweight Directory Services (AD LDS) was originally a downloadable add-on to Windows Server called Active Directory Application Mode (ADAM). In Windows Server 2008 this became an additional role included in the operating system. AD LDS uses the same code as AD DS and thus provides some of the same functionality. As you will see, it provides a lot of the same functionality but is also flexible enough to offer additional options that are not possible using AD DS. AD LDS Example In this example, a user needs to access a web server. This web server has been placed on a perimeter network and separated from the internet and the internal network by a firewall. The web server needs to be able to authenticate users, however for security reasons the company does not want to place a Domain Controller on the perimeter network. Rather than install a Domain Controller on the perimeter network, another option is to install AD LDS on the web server. Since it uses the same code base as a Domain Controller, it is able to authenticate users the same way a Domain Controller would. In order to achieve this, the user's database is replicated from a Domain Controller on the commercial network to the perimeter network. AD LDS also allows you to choose which data you want to replicate, for example, you could choose to replicate the user data but not the group data. AD LDS also supports additional data to be added. This means additional data can be added that the web server can be accessed through AD LDS which means this additional data does not need to be added to AD DS. This solution helps keep Active Directory secure and also help prevents extra data being added to the database. Differences between AD LDS and AD DS AD LDS is designed more to run software rather than to run domains so it not a replacement for AD DS. It can run on a computer that is in a workgroup, does not require DNS and also can run on client operating systems like Windows 7 and 8. For this reason, it is a good choice for application support and for testing. For example, a developer can have their own install running on their client operating system and thus be able to make whatever changes they want, something that is not possible using a production domain. AD LDS supports multiple instances as well, so the administrator is free to create as many local copies as they wish. AD LDS does not support domain features like group policy, global catalog support and the ability to manage workstations. For this reason it cannot be used as a replacement for Domain Controllers. Even though these domain features are not available, AD LDS does support sites and replication. This means AD LDS installation can replicate data between each other and also with Domain Controllers, however support of trusts is not supported so this limits an AD LDS instance to working with only the one domain. Differences between Directory Services and Databases A directory service and a database fundamentally work differently. For this reason they tend to be used for different types of applications. Directory Services are hierarchical based, allowing security to be applied to an object. If you want to add additional objects you need to change the schema. Changes to the schema cannot be undone after they have been made. Since Directory Services is hierarchical in nature, it can perform fast searches, for example looking up a person in the Directory Service would be quite fast. Directory Services can be modified in multiple locations at the same time. If multiple changes are made at the same time, the last write performed will overwrite any previous writes. A relational database in comparison offers faster write times than a directory service as the data is stored in rows and column rather than a hierarchy. Data is locked before it is updated so there is no chance that data will be changed in two locations at the same time. A relational database does not have a schema so changes to the layout of the data can be changed at any time. This include the ability to reverse changes later on which is not possible with a Directory Service. For the rest of the descrption please see http://itfreetraining.com/adlds#intro See http://YouTube.com/ITFreeTraining or http://itfreetraining.com for our always free training videos. This is only one video from the many free courses available on YouTube. References "MCTS 70-640 Configuring Windows Server 2008 Active Directory Second edition" pg 731 -741 "Active Directory Lightweight Directory Services Overview" http://technet.microsoft.com/en-us/library/hh831593.aspx
Views: 73034 itfreetraining
How to troubleshoot and fix Active Directory replication issues on Windows Server 2012 R2
 
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Support NLB Solutions - https://www.patreon.com/NLBSolutions In this video I am going to show you an issue with my Active Directory replication between my two DCs and how I managed to resolve it. Tips and tricks for demoting a DC: 1. Always try graceful removal 1st, if you are not able to gracefully remove the DC proceed with Force Removal. 2. If you are performing a Forceful removal disconnect your DC in order to prevent corruption on your working DC. 3. Perform matadata cleanup from AD Users and Computers, DNS and AD Sites and Services when possible. If not you can proceed with ntdsutil /metadatacleanup. 4. After promotion leave the DCs to "talk" to each other in order to replicate all AD info.
Views: 109687 NLB Solutions
How Active Directory Enables a Single Sign-on (SSO) Across a Forest, GC, Auth & Authorization
 
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How Active Directory Enables a Single Sign-on (SSO) Across a Forest, including LDAP, Global Catalog, etc, with Authentication and Authorization. Compiled From MOC 2279b Planning, Implementing & Maintaining a Microsoft Windows 2003 AD Infrastructure, Module 1, by Ace Fekay
Views: 39592 AcemanMCT
MCITP 70-640: Active Directory different group types available
 
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This video looks at the different group types available in Active Directory. These include Local, Domain Local, Global, and Universal. The video also covers membership requirements which can be used in each of the different groups and converting between different groups. Finally, this video looks at distribution vs security groups. Demonstration 14:35 Distribution Group Any group in Active Directory can be created as either a distribution group or a security group. Distribution groups do not have a SID (Security Identifier) associated with them. For this reason distribution groups can't be used for security. That is, a distribution group cannot be used to assign permissions to files or objects. Distribution groups are mainly used with e-mail programs like Exchange to send e-mails to groups of people. Since there is no SID associated with the group, when you make a user a member of a distribution group, this does not affect the size of the security token for that user. A security token is created when the user logs in and contains their SID and any SID's for any security groups of which they are a member. Security Group A security group has a SID and thus can be used for assigning permissions to files or objects. A security group can also be used as a distribution group in e-mail software like Exchange. Thus, the difference between a security group and a distribution group is simply that a security group is security enabled whereas a distribution group is not. If you are not sure which group to create, create a security group since it can do everything a distribution group can do and can also be used in security related operations. Local Group Local groups exist only on the computer on which they were created. A local group can have as a member any user or computer account as well as any other type of valid group. Domain Local Group Domain Local groups can only be used in the domain in which they were created. A Domain Local group allows membership from any other group as well as any user or computer. Domain Local groups from other domains cannot be used as members because they are limited in their use outside of the domain in which they were created. Universal groups can only be used as members when the Universal group exists in the same forest as the Domain Local group. Global Group Global groups have the most restrictive membership requirements, only allowing users, computers, and other Global groups from the same domain to be used as members. However, Global groups can be used as members of any other group, including other forest and external domains. This means a Global group has the most restrictive membership requirements of all the groups but is the most flexible when being used as members of other groups. Universal Group The Universal group is replicated via the global catalog server. For this reason, it is available to any domain in the forest but not to other forests or external domains. Since the Universal group is available forest wide, it does not allow Domain Local groups to be members even when the Universal group has been created in the same domain as the Domain Local group. Summary of Groups' Membership 1) Users and computers can go into any group in any domain and any forest or external domain if the group supports it. 2) Local and Domain Local groups allow the same membership requirements. 3) Universal, Domain Local and Local groups have the least strict membership requirements allowing any valid group with appropriate scope to be a member. 4) Global groups can contain only users, computers and other Global groups from the same domain only. 5) Global groups can be used everywhere, any domain, forest or external domain. 6) Universal groups are available only in the same forest since they are replicated using the global catalog. Since they are forest wide, Domain Local groups can't be members since the Domain Local scope is limited to the domain in which they were created. Description to long for YouTube. Please see the following link for the rest of the description. http://itfreetraining.com/70-640/group-types References "MCTS 70-640 Configuring Windows Server 2008 Active Directory" pg 145-152 "Active Directory Users, Computers, and Groups" http://technet.microsoft.com/en-us/library/bb727067.aspx
Views: 89338 itfreetraining
Global Catalog (Part-8)
 
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Global Catalog Servers contain a partial replica for every object in Active Directory. A Global Catalog Server is used to find objects in any domain in the forest. Any Domain Controller can be made into a Global Catalog Server. In this video I am going to show you how to remove or make a Domain Controller into a Global Catalog Server and also the reasons why and where you should put Global Catalog Servers. If you like the video, press the Like button. If you think that this video needs improvements, leave a comment below. If you are interested in my channel, subscribe to be notified if a new video is released. -~-~~-~~~-~~-~- Please watch: "Network Address Translations on Cisco Routers [Urdu / Hindi]" https://www.youtube.com/watch?v=rKn-p0EOjKQ -~-~~-~~~-~~-~-
Views: 153 IT Lab
Global Catalog Server - Etechtraining.com
 
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Global Catalog Server
Views: 165 Myrl Whitney
MCITP 70-640: Operators Master Role Placement Global catalog
 
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Check out http://YouTube.com/ITFreeTraining or http://itfreetraining.com for more of our always free training videos. In Active Directory there are five operations master roles known as FSMO roles. This video looks at which Domain Controllers you should put these roles on and also which Domain Controllers you should make into Global Catalog Servers. There are five operations master roles. The Schema and Domain Naming Masters are forest wide so there will only one of each of these roles regardless of how many domains you have in your forest. The PDC Emulator, RID Master and Infrastructure Master are domain wide. There will always be 3 operations master roles per domain, one of each. When considering where to put the operations master roles, you should consider the availability of the operations role and what effect not having the operations master role available during an outage will have on your network. Schema Master (Forest wide) The Schema Master is generally found in the root domain in a multiple domain environment. On most networks it will not be used that often. For this reason availability is not a big issue so for ease of administration it will often be put on the same Domain Controller that has the Domain Naming Master. The Schema Master operations master role is not affected whether the Domain Controller is a Global Catalog Server or not. Domain Naming Master (Forest wide) The Domain Naming Master is required when domains are added or removed from the forest. It does require Global Catalog calls when domains are added or removed. For this reason it is recommended to make it a Global Catalog Server. However, this will not affect operations if it is not. PDC Emulator The PDC Emulator has the final say on authentication. For this reason the PDC Emulator will generally be placed on the network with the most users. The PDC Emulator can be made a Global Catalog Server; however, administrators will often remove the Global Catalog from the PDC Emulator if performance on the PDC Emulator becomes a problem. RID Master The RID Master allocates blocks of RIDs. For this reason it does not have to be on the fastest Domain Controller or on the fastest link. Domain Controllers will request RIDs before they run out. The PDC Emulator generally uses more RIDs than other Domain Controllers on the network and thus a lot of administrators will place the RID operations master role on the same Domain Controller that is holding the PDC Emulator. Whether the Domain Controller is a Global Catalog Server or not does not affect the operation of the RID Master. Infrastructure Master The Infrastructure Master role tracks references in multi-domain environments. In a single domain network the Infrastructure operations master role is not that important. In a multi-domain environment the role of the Infrastructure Master becomes more important. The choice of whether to make this a Global Catalog Server or not can affect its ability to keep cross domain reference up to date. If you have Windows Server 2000 or 2003 Domain Controllers on your network, you need to ensure the Infrastructure Master is not a Global Catalog Server or all your Domain Controllers on the network will become Global Catalog Servers. In a pure Windows Server 2008 environment, it does not matter whether you make the Domain Controller a Global Catalog Server or not. Disadvantages of making a Domain Controller a Global Catalog Server Making a Domain Controller a Global Catalog Server will increase the amount of hard disk space that it requires and also the amount of network bandwidth that it will use. Nowadays it is not as big of a concern as it was when Windows Server 2000 came out. Global Catalog Servers are also used by clients to perform searches and to look up objects. This can increase the load on the Domain Controller.
Views: 25065 itfreetraining
3-Catalogue global #Darija 1
 
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Ce vidéo contient de: Catalogue global Pour télécharger le fichier PDF : http://net4maroc.blogspot.com/2016/11/active-directory-theorie.html Tutoriel qui est présente Cours Active Directory en darija : Vides Sur Active Directory partie Théorie : On utilise les Titres Suivants : Présentation d'Active Directory les Objectes d'Active Directory Cataloge Globale d'Active Directory Protocole d'Active Directory Structure Physique et logique d'Active Directory Maitre d’opération d'Active Directory La Replication d'Active Directory Groups d'Active Directory Utilisateur d'Active Directory Pour télécharger les articles http://www.mediafire.com/file/lq0oo36taubblju/Imbrication+Groupe.pptx http://www.mediafire.com/file/coc6c2odd6sl72d/ad+cours.pdf Veuillez nous trouvez sur : Notre page Facebook: https://www.facebook.com/network4maroc Notre Channel YouTube : https://www.youtube.com/net4maroc Tags : شرح دارجة مفهوم definition explication reseau informatique ista dnscmd acord enregitrements architecture routing windows7 windows server 2008 2012 2016 2003 10 facebook youtube gratuit cour dns dhcp active directory ptoocole francais darija telecharger net4maroc 1ere annees 2eme free marocaine systeme Dsadd ds dsmod group user maitre d’operation ou domaine arbre foret contact replication inta-site inter-site partition schema congiguration adpplication presentation workgoup facebook youtube gratuit ACL access list standar etendue nomme creer supprimer net4maroc ista darija francais cour free en francais EFM windows7 hardware software fichier d’echange compression cryptage post ram bios boot mbr gpt fat ntfs partage darija net4maroc en francais explication english "instlation d’un poste informatique" facebook youtube EFF exam شرح مفهوم ista arabe windows8 diskpart ms-dos net group net user net share Net4maroc exam ipv6 cours exercice qcm adressage vlsm ipv4 differance Notation IPv6 pour les Nuls ripng eigrp ospfv3 acl access-list internet protocole tutorial notion de base basic configuration darija maroc ista offpt routeur cisco
Views: 3302 Net4maroc
How to properly demote an Active Directory Domain Controller in Windows Server 2012 R2
 
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This video demonstrates how to properly demote a domain controller in Windows Server 2012 R2. Several possible snags are mentioned, including DNS, FSMO roles, Global Catalog, and why you should never force the removal of a domain controller from the domain.
Views: 2585 Patrick Hornung
Demote Or Removal Domain Controller from Active Directory
 
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Demote Or Removal Domain Controller from Active Directory Steps need to perform on during the Migration 1. Check the FSMO Roles For Domain. 2. Check the DNS Settings on All Servers 3. Transfer RID, PDC and INFRSTRUTURE MASTER Roles to Win2K12R2-DC01. 4. Transfer the DOMAIN NAMING MASTER Role to Win2K8R2-DC02. 5. Transfer SCHEMA MASTER Role on Win2K8R2-DC02. 6. Remove the Win2K8R2-DC01 from Global Catalog Server. 7. Run the dcpromo.exe on Win2K8R2-DC01 to Demote the server. 8. Verify that domain controller demote successfully. Thank You Watching Vikas Singh [email protected] [email protected] Please subscribe me for more videos………
Views: 14094 Vikas Singh
15 Configure a Global Catalog Server - Install Domain Controllers
 
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Active Directory (AD) is a directory service that Microsoft developed for Windows domain networks. It is included in most Windows Server operating systems as a set of processes and services. Initially, Active Directory was only in charge of centralized domain management.
Views: 208 COM TECH by PRASAD
Exchange integration with Active Direcotry
 
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Exchange Server 2013 and AD DS Partitions Integration 1.Forests 2.Schema Partition 3.Configuration Partition 4.Domain Partition 5.Global Catalog
Views: 804 Sandeep Dahiya
Настройка AD: Global Catalog и где искать данную настройку
 
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В данном видео рассмотрим где находится настройка того какой из контроллеров домена является хранителем Global Catalog а какой нет.
Active Directory's 3 Logon Scenarios: w/GC, w/o a GC, & Univ Grp Member Caching, Group Scope
 
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This video describes what happens in the three possible AD logon scenarios in detail: With a Global Catalog, Without a Global Catalog, and with Universal Group Membership Caching, and Group Scope. Compiled From MOC 2279b Planning, Implementing & Maintaining a Microsoft Windows 2003 AD Infrastructure, Module 11, by Ace Fekay
Views: 1311 AcemanMCT
Active Directory Migration From Windows Server 2003 To Server 2012
 
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Active Directory Migration Active Directory Migration From Windows Server 2003 To Windows Server 2012R2 Steps need to perform on during the Migration 1. Install Support Tools on Windows Server 2003 Server. 2. Check the FSMO Roles For Domain. 3. Check the replication status of your active directory services. 4. Raise the Domain Functional Level To Windows Server 2003. 5. Raise the Forest Functional Level To Windows Server 2003. 6. Join Windows Server 2012 R2 to Domain & Restart. 7. Install AD DS Role from Server Manager. 8. Promote the server to a Domain Controllers & Restart. 9. Transfer All FSMO Roles to New Server (On Windows Server 2012 R2). 10. Verify all the objects replicated on New Domain Controller. 11. Remove the Windows Server 2003 From Global Catalog. 12. Verify all the FMSO Roles are working on Windows Server 2012 Server. 13. Verify All Active Directory Replication is successfully completed. 14. Change the DNS Settings on both Servers. 15. Run The dcpormo.exe on Windows Server 2003 DC to demote this DC. Thank You Watching Vikas Singh [email protected] [email protected] Please subscribe me for more videos……
Views: 23075 Vikas Singh
MCITP 70-640: Operation Master Roles
 
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Active Directory has five operations master roles otherwise known as FSMO roles. Check out http://itfreetraining.com for more of our always free training videos. These roles are assigned to one Domain Controller to ensure changes happen in only one location at a time. This ensures that the Active Directory database is kept consistent. This video goes through the five operations master roles. At the forest level, there is the Schema Master and Domain Naming Master. At the domain level, the 3 other operational roles are Infrastructure Master, PDC Emulator and RID Master. Schema Master 01:32 Domain Naming Master 03:01 RID Master 03:53 PDC Emulator 07:06 Infrastructure Master 11:03 Schema Master (Forest Wide) The Schema Master determines the structure and thus what can be stored in Active Directory. It contains details of every object that can be created and the attributes for that object. For example, if you want to add an attribute to every user in the forest (such as a field with the user's pay grade in it), you would add an attribute to the schema to accommodate this change. It is important to think carefully before making changes to the schema as changes to the schema can't be reversed but they can be disabled. If you want to test changes to the schema, create a new forest and make your changes there so the production environment is not affected. Domain Naming Master (Forest Wide) The Domain Naming Master is responsible for ensuring that two domains in the forest do not have the same name. Relative ID Master (RID Master) This master role allocates RID pools. A RID is a sequential number that is added to the end of a SID. A SID, or security identifier, is required for every Active Directory object. An example of a SID is shown here: S-1-5-21-1345645567-543223678-2053447642-1340. The RID is the last part of the SID, in this case 1340. The RID Master allocates a pool or block of RIDs to a Domain Controller. The Domain Controller uses the RID pool when Active Directory objects are created. The Domain Controller will request a new RID pool before it runs out. However, keep in mind that if you create a lot of Active Directory objects at once, the RID Master will need to be online to allocate new RID pools. If the Domain Controller runs out of RIDs and can't contact the RID Master, no objects in Active Directory can be created on that Domain Controller. PDC (Primary Domain Controller) Emulator Originally the PDC Emulator provided a bridge between Windows NT4 Domain Controllers and Windows Server 2000 Domain Controllers. Even if you do not have any NT4 Domain Controllers on your network, it still provides some services. The PDC Emulator forms the root of the time sync hierarchy in your domain. All other Domain Controllers will sync their time from this Domain Controller. Your clients and servers will in turn sync their time from their local Domain Controller. You should configure the PDC to sync its time from an external time source to ensure that it is accurate. When a user enters in a wrong password, the PDC Emulator may be contacted to find out if this password is in fact an updated password. Password changes are replicated to the PDC Emulator first and thus it is considered the final authority on correct and incorrect passwords. The PDC Emulator is contacted when changes to DFS (Distributed File System) are made. This can be switched off if the load on the PDC Emulator becomes too great. Infrastructure Master The Infrastructure Master is responsible for ensuring that objects that use multiple domain references are kept up to date and consistent. When you are in a single domain you don't need to worry about this. In a multiple domain environment with Windows Server 2000/2003 Domain Controllers, you must ensure that the Domain Controller that is holding the Infrastructure Master role is not a Global Catalog Server or all of the Domain Controllers will be Global Catalog Servers. If the Domain Controller is a Global Catalog Server this can cause objects in the domain not to update correctly. If you only have Windows Server 2008 Domain Controllers, you don't need to worry about whether the Infrastructure Master is on a Global Catalog Server or not.
Views: 118268 itfreetraining
Top 7 Active Directory Interview questions and answers
 
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If you like to learn more on this subject, then here some links for recommended books from my research. ==================================== For Kindle Devices Offers:: 👇👇 Kindle Device 1:👇👇 https://amzn.to/2MAlbFN Kindle Device 2:👇👇 https://amzn.to/2MwGp77 ==================================== International Links Mastering Active Directory:: 👇👇 https://amzn.to/2KgeNXr ==================================== Active Directory (AD) is a Windows OS directory service that facilitates working with interconnected, complex and different network resources in a unified manner. Active Directory was initially released with Windows 2000 Server and revised with additional features in Windows Server 2008. Active Directory provides a common interface for organizing and maintaining information related to resources connected to a variety of network directories. The directories may be systems-based (like Windows OS), application-specific or network resources, like printers. Active Directory serves as a single data store for quick data access to all users and controls access for users based on the directory's security policy. Techopedia explains Active Directory (AD) Active Directory provides the following network services: Lightweight Directory Access Protocol (LDAP) – An open standard used to access other directory services Security service using the principles of Secure Sockets Layer (SSL) and Kerberos-based authentication Hierarchical and internal storage of organizational data in a centralized location for faster access and better network administration Data availability in multiple servers with concurrent updates to provide better scalability Active Directory is internally structured with a hierarchical framework. Each node in the tree-like structure is referred to as an object and associated with a network resource, such as a user or service. Like the database topic schema concept, the Active Directory schema is used to specify attribute and type for a defined Active Directory object, which facilitates searching for connected network resources based on assigned attributes. For example, if a user needs to use a printer with color printing capability, the object attribute may be set with a suitable keyword, so that it is easier to search the entire network and identify the object's location based on that keyword. A domain consists of objects stored in a specific security boundary and interconnected in a tree-like structure. A single domain may have multiple servers – each of which is capable of storing multiple objects. In this case, organizational data is stored in multiple locations, so a domain may have multiple sites for a single domain. Each site may have multiple domain controllers for backup and scalability reasons. Multiple domains may be connected to form a Domain Tree, which shares a common schema, configuration and global catalog (used for searching across domains). A Forest is formed by a set of multiple and trusted domain trees and forms the uppermost layer of the Active Directory. Novell's directory service, an Active Directory alternative, contains all server data within the directory itself, unlike Active Directory. Share this video with your friends.👆
Views: 672 Elisha Kriis
DNS and Active Directory
 
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Active Directory requires DNS in order to operate. This videos looks at how Active Directory uses DNS and thus improves your understanding of how to support Active Directory and ensures your DNS infrastructure will support the requirements for Active Directory. PDF http://itfreetraining.com/handouts/dns/dnsandad.pdf Demonstration To access DNS Manager, open Server Manager and select DNS from the tools menu. The DNS records required for Active Directory are located under Forward Lookup zones under the DNS name of your domain. There are a number of different containers in here. The DNS records in each container have different uses to clients on the network. _tcp container This container contains services that are available via TCP or reliable transport. The container contains 4 different types of records. These are _gc, _kerberos, _kpasswd and _ldap. These allow clients to find services on the network by searching for these records. For example, if a client wants to find a global catalog server, it will look for the DNS records _gc. Under _tcp, this will contain all the global catalog servers that are available in the domain. A client needs to query this container using DNS and this will give the client a service record for a global catalog server in the domain. The default DNS server setting will attempt to return a global catalog server in the same network as the client. The _kerberos records are used by the client to locate servers on the network that can perform Kerberos authentication. The _kpasswd records tell the client where a server is that can perform Kerberos password changes. The _ldap tells the client where servers are located on the network that can perform Ldap lookups. _udp container contains the same kind of records as _tcp, however these services are contactable with the UDP protocol. Service records properties Priority: When two or more records exist with the same name than the DNS record will be used with the lowest priority. Weight: When two or more records exist that have the same lowest priority, the weight value is used to determine which record is used. For example, if one record had a value of 20 and the other 80, the first record would use 2 out of 10 requests and the second, 8 out of 10 records. Port: The port number is the port the service can be contacted on. Dynamic update and DNS When services like Active Directory Domain Services starts up, it will automatically attempt to register service records in DNS. If you do not have dynamic updates enabled and you have scavenging enabled, the Active Directory DNS records will eventually be removed. Since the services records have been removed, clients will not be able to find Active Directory resources on the network. If you want to check if dynamic updates are enabled, open the properties of the zone file and make sure that dynamic updates is not disabled on the general tab. DomainDNSZones and ForestDNSZones These two containers contains DNS records that are relevant for the domain and forest. _msdcs zone This is a Microsoft specific zone that contains resource service records for the domain or forest. This zone contains DNS service records that are registered by Microsoft based services. Since there are other non-Microsoft Directory Services that use service records, in order for a client to be sure that it is obtaining service records for a Microsoft solution, a Microsoft only zone is required. This zone is available at the forest level and thus Domain Controllers can obtain service records for all Domain Controllers in the forest. Using this information, they can create replication that works at the domain and forest level. Description to long for youtube. For the rest of the description please see. http://itfreetraining.com/dns#ad References "MCTS 70-640 Configuring Windows Server 2008 Active Directory Second edition" pg 480 "Active Directory SRV Records" http://www.petri.co.il/active_directory_srv_records.htm "How DNS Support for Active Directory Works" http://technet.microsoft.com/en-us/library/cc759550(WS.10).aspx
Views: 56717 itfreetraining
Configure a Global Catalog in Windows Server 2016
 
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In this video lab we will learn how to configure/ enable Global Catalog Server in Windows Server 2016. For this demonstration i have two domain controller in default First Site name LAB-DC01 and LAB-DC02. We want to make LAB-DC02 as Global Catalog server.
Views: 1269 Must be Noob
MCITP 70-640: Active Directory adding a child domain
 
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This video looks at how to add a child domain to an existing domain in Active Directory. Child domains can access resources from the parent and also from any other domain in the forest. This video will look at adding the east domain to the existing domain. Demonstration at 04:35 Things to consider before adding a child domain The more domains that you have in your forest, the harder it will be to administer your network. When possible, you should attempt to reduce the number of domains in your forest. Sometimes due to company needs or security reasons, extra domains may be created. It should be remembered that in Windows Server 2008 there have been a number of improvements and features which in previous versions of Windows would have required additional domains. These are: 1) Active Directory could previously only have one password policy per domain. If your domain functional level is Windows Server 2008 or higher, you can support multiple password policies for the same domain. 2) With Windows NT the database was limited to 40 MB, which was around 40,000 objects. Because of this multiple domains may have been required, whereas Active Directory now only requires one. New domains may also be created due to different business unit requirements. In a lot of cases you can separate departments and even companies using organization units inside Active Directory; however, dealing with things like different company budgets is not as simple. If the companies have different IT support staff, they will probably want different domains. Demonstration Creating a new domain or adding a domain controller to an existing domain is all done using DCPromo. 1) When asked, select the option at the top existing forest. Under this, select the option, "create a new domain in an existing forest." This will create the first domain controller in your new domain in the existing forest. 2) You will next be asked for the credentials for a user to add the domain to the existing forest. This needs to be a user in the enterprise administrators group; however, the user does not need to be in the root domain: they can be located in any domain in the forest. 3) Next you need to enter in the name of the parent domain of the child domain. If you are creating a new tree, enter in the new namespace. DCPromo will understand this is a new tree rather than a child domain. 4) Once the relevant details are entered, a Domain Naming Master will be contacted to see if this domain already exists. If the Doman Naming Master can't be contacted DCPromo will fail. 5) Once the Domain Naming Master has been contacted and it has been confirmed this domain does not already exist, you will be asked for the domain functional level. What is available will be determined by what the current forest functional level is. 6) Next you need to select the site where the domain controller will be. If no sites have been created, you can use "default first site name" for the site. 7) Next you can decide if the domain controller is a DNS server and/or a global catalog server. Even if you are creating a completely separate domain you can use a DNS server or even a 3rd party DNS system like UNIX. 8) The wizard will ask you where to put the database, log file and SysVol folder. In most cases leave this on the default. 9) The next screen will ask for an Active Directory recovery password. This is used in certain recovery situations including restoring deleted objects. See http://YouTube.com/ITFreeTraining or http://itfreetraining.com for our always free training videos. This is only one video from the many free courses available on YouTube.
Views: 63994 itfreetraining
Global Catalog & Infrastructure Master Question
 
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Why Infrastructure Master(IM) FSMO role should never be hosted on a DC that is also a Global Catalog(GC). One of the most common questions asked during an interview for any Active Directory position. In my experience, I haven't seen an environment in which this was a concern. Making all DCs also Global Catalog is a standard process.
Views: 714 WinAD Singh
MCITP 70-640: Active Directory Computer Accounts
 
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Check out http://YouTube.com/ITFreeTraining or http://itfreetraining.com for more of our always free training videos. This video looks at computer accounts in Active Directory. Each time you add a computer to the domain, a computer account is created for that computer in the Active Directory database. This video looks at how these computer accounts work and how to reset the computer accounts if the password in the computer accounts becomes out of sync with the password stored on the local computer. Demonstration 04:57 Computer Account A computer account in Active Directory is very simpler to a user accounts in Active Directory. Fundamentally, a computer and user account are made from the same attributes. Like a user account, the computer account has a password. Unlike a user account this password is randomly generated. This password is supply to the domain when the computer starts up which allows a secure connection to be created between the computer and the Domain Controller. This password is automatically changed after 30 days. If the computer has not connected to the domain for more than 30 days, the computer will still be able to access the domain. The password for the computer account will be changed next time the computer connects up to the domain. Resting the computer account Sometimes the password used on the local computer and that stored in the domain for the computer accounts become out of sync. When this occurs you will receive a message "The trust relationship between this workstation and the primary domain failed." When this occurs the computer will need to be readded to the domain. Pre-Stage Computer Accounts A computer accounts is automatically created for a computer when it is added to the domain. You can also manually create the computer account in advance before the computer is added to the domain. When this is done this referred to as pre-stage. There are a number of reasons why you may want to pre-stage the computer account: 1) Deployment solutions like Windows Deployments Solutions (WDS) can be configured to use only pre-stage accounts. This stop computers from being deployed unless a computer account has been created for them. This essentially puts some controls on images that are deploy using system like WDS. 2) A pre-stage computer account ensures that the computer is put into the correct organizational unit. If you do not use a pre-staged computer account, the computer account will be created in the default location of computers. The computers OU can't have additional group polices apply to it so limits how the computer can be administered. By pre-staging the computer ensures that administrators can control the computer using group policy as soon as the computer is added to the domain. 3) A pre-stage account allows a general user to be granted the right to add that computer to the domain. This means allows more granular administration to achieved rather than having to use an account like the administrators account. Demonstration To perform administration on computer accounts inside Active Directory , open Active Directory Users and Computers from administrative tools under the start menu. If you select a computer account, you can access the properties of the computer account by right clicking and selecting properties. The properties contains information about the computer like what type of computer it is. For example, a "workstation or server" or a Domain Controller with or without it being configured as global catalog server. To create a pre-stage computer account, open Active Directory User and Computers. Inside Active Directory User accounts, navigate to the OU that you want to create the computer account in. In the new computer dialog you can also set a user account that will be allowed to add the computer to the domain. To add a computer to the domain, open Windows Explorer and right click on computer and select properties. From the system properties, select the option change settings and then press the button change. This will allow you to remove or add the computer to a domain. To reset the password on a computer account, right click the computer account and select reset account. The computer will need to be removed from the domain and re-added again. When you remove the computer from the domain and palace it in a work group, you do not need to reboot the computer before adding it to the domain again. Once it is added to the domain, you will need to reboot the computer to complete the process. References "User and computer accounts" http://technet.microsoft.com/en-us/library/cc759279(v=ws.10).aspx "Resetting computer accounts in Windows" http://support.microsoft.com/kb/216393 "Machine Account Password Process" http://blogs.technet.com/b/askds/archive/2009/02/15/test2.aspx "Pre-Stage Computer Account in Windows Server 2008" http://www.pctips3000.com/pre-stage-computer-account-in-windows-server-2008
Views: 63624 itfreetraining
Windows Server 2012 Global Catalog, catalogo global
 
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DescripciónEl catálogo global es el conjunto de todos los objetos de un bosque de los Servicios de dominio de Active Directory (AD DS). Un servidor de catálogo global es un controlador de dominio que almacena una copia completa de todos los objetos del directorio para su dominio host y una copia parcial de solo lectura de todos los objetos del resto de dominios del bosque. Los servidores del catálogo global responden a las consultas del catálogo global.
Views: 1570 sabinadicto
MCITP 70-640: Universal Group Membership Caching
 
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Universal groups are stored on a Domain Controller that has been made a global catalog server. If a user is a member of a universal group, and a global catalog server is not available, the user will not be able to login. In some cases you may have only a few users at a site and do not wish to deploy a global catalog server due to the extra replication this will cause. This video looks at how you can use universal group membership caching to allow users to authenticate from a Domain Controller when a global catalog server is not available. Authentication process When a user authenticates from a Domain Controller, a security token is created for that user that contains all the groups that the user is a member of. If the user is a member of universal group, then a global catalog server must be contacted in order to obtain this membership. If no global catalog server is available, and universal group membership caching is not enabled, the following occurs: The user will be able to login locally on their computer if their user has been cached on the computer. This may be the case if they were the last person to login to that computer. This will allow the user local access, but when they attempt to connect to a computer, for example a file share on a server, the computer will double check the user. This is done to ensure the user has not been locked out or disabled. If no global catalog server is available to the computer that the user is trying to connect to, the user will be denied access. How Universal Group Membership Caching works When a user authenticates from the domain controller, the domain controller will contact a global catalog server in order to determine the universal group membership for that user. This information, once obtained, is stored on the Domain Controller forever. To make sure the cache is keep up to date, the cache is updated from a global catalog server every 8 hours. How to enable Universal Group Membership caching (UGMC) UGMC can only be enabled at the site level, so once enabled, all Domain Controllers in that site that are not global catalog servers will start caching universal group membership. To enable UGMC, do the following: 1) Open Active Directory Sites and Services 2) Open the site that you want to enable UGMC. 3) Open the properties for NTDS site Settings. These settings should not be confused with NTDS Settings that are found under the Domain Controller. 4) From the properties tick the option "Enable Universal Group Membership Caching." 5) If you wish, you can also select the option "refresh cache from". This will allow you to select which site you want the Domain Controller to refresh its cache from. If this is not configured, the Domain Controller will update its universal groups caching from the closest domain controller. References "MCTS 70-640 Configuring Windows Server 2008 Active Directory" pg 524-525 "Cache universal group memberships" http://technet.microsoft.com/en-us/library/cc775528(v=ws.10).aspx
Views: 26037 itfreetraining

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