1 00:00:06,460 --> 00:00:14,950 When users sign into Active Directory their computers look and ask for as real records to locate the 2 00:00:14,950 --> 00:00:22,800 nearest domain controller a records specify information about available services e.g. domain controller 3 00:00:22,840 --> 00:00:31,980 dynamically registers its addresses in DNS and it's doing it at Star top by registering and updated 4 00:00:31,980 --> 00:00:34,130 it service record in DNS. 5 00:00:34,180 --> 00:00:42,910 Clients can locate a suitable domain controller to service they are assigned a request by using DNS 6 00:00:42,980 --> 00:00:51,140 lookups which use these as their real records as a real records for ADT is follow the follow in Room 7 00:00:51,260 --> 00:00:58,230 from underscore service dot underscore protocol dot domain name. 8 00:00:58,270 --> 00:01:06,190 For example if a client is looking for a server that is running the light way direct or access protocol 9 00:01:06,190 --> 00:01:11,440 or held up service in the a datum dot com domain. 10 00:01:11,440 --> 00:01:18,050 It queries for El derp dot underscore to speed dot a datum dot com. 11 00:01:18,130 --> 00:01:23,540 I plan to use these sites when it needs to contact the demand controller. 12 00:01:23,560 --> 00:01:27,810 It starts by looking up as the records in DNS. 13 00:01:27,820 --> 00:01:35,350 The response to the DNS query includes a list of the domain controllers on the same side as the client 14 00:01:35,600 --> 00:01:39,550 a list of domain controllers from the next closest site. 15 00:01:39,640 --> 00:01:42,710 That does not include two marauders. 16 00:01:42,970 --> 00:01:51,000 If no domain controllers were available in the same site and try and next closes site group policy set 17 00:01:51,040 --> 00:01:57,710 and is enabled and it includes a random list of available domain controller in the domain. 18 00:01:57,940 --> 00:02:06,310 If there is no domain controller is the next closest site administrators can define sites in 80 days. 19 00:02:06,400 --> 00:02:14,760 When you define sites you should consider which parts of the network have good connectivity and bandwidth. 20 00:02:14,770 --> 00:02:23,230 For example if a branch office connects to the domain datacenter through an unreliable wide area network 21 00:02:23,230 --> 00:02:28,680 link you should define the branch office and the data center as separate sites. 22 00:02:28,690 --> 00:02:36,220 The net logon service that runs on each domain controller registers as service records in DNS. 23 00:02:36,260 --> 00:02:43,870 If there is a real records are not turned or in DNS correctly you can trigger the domain controller 24 00:02:43,870 --> 00:02:51,820 to register those records by restarting the net logon service on that domain controller. 25 00:02:51,900 --> 00:03:00,250 Note that this process reregister as only the service records if you want to register the host. 26 00:03:00,250 --> 00:03:02,700 Record information in DNS. 27 00:03:02,740 --> 00:03:11,320 You must run a pick on fake slash registered DNS command from a command prompt just as you would for 28 00:03:11,380 --> 00:03:12,970 any other computer.