Hi, I have some serious problem with server 2008 r2 active directory service and DNS. All srv records are missing, I mean all _msdcs.<domain name> is gone and all records in it. Under <domain name> there is no _msdcs folder, _tcp folder, etc. Everything's gone. I tried recreating some records manually but I cannot do all of them or don't know how. I tried recreating forward lookup zone, hoping that records will be created automatically, at least that what was happening with 2003 server. As of time of this writing I'm uninstalling DNS and waiting already 30 minutes for the thing to restart. Can anyone help me with this?? Because of missing records computers cannot join domain and some users have hard time logging into domain. Thanks

Examine ipconfig /all and make sure DNS points to your DNS Server only. Then try ipconfig /registerdns and examine event log.MCITP: Enterprise Administrator; MCT; Microsoft Security Trusted Advisor

Hello, sounds for met that you have added a new OS DC/DNS to an existing domain with Windows server 2003 running. If yes please describe in detail which steps you have done during the installation. Do you use AD integrated zones? Do you still have the DNS information in the Windows server 2003 DC? Please post the DNS domain name, the NetBios domain name and the domain name shown in AD UC, also an unedited ipconfig /all from the old and the new DC/DNS server.Best regards Meinolf Weber Disclaimer: This posting is provided "AS IS" with no warranties or guarantees , and confers no rights.

Here is unedited ipconfig /all output Windows IP Configuration Host Name . . . . . . . . . . . . : CMPWADSRV1 Primary Dns Suffix . . . . . . . : compuweigh.local Node Type . . . . . . . . . . . . : Hybrid IP Routing Enabled. . . . . . . . : Yes WINS Proxy Enabled. . . . . . . . : No DNS Suffix Search List. . . . . . : compuweigh.local Ethernet adapter CWC_21: Connection-specific DNS Suffix . : Description . . . . . . . . . . . : Intel(R) PRO/1000 MT Network Connection # 2 Physical Address. . . . . . . . . : 00-11-43-D7-10-84 DHCP Enabled. . . . . . . . . . . : No Autoconfiguration Enabled . . . . : Yes IPv4 Address. . . . . . . . . . . : 192.168.8.21(Preferred) Subnet Mask . . . . . . . . . . . : 255.255.255.0 Default Gateway . . . . . . . . . : 192.168.8.1 DNS Servers . . . . . . . . . . . : 192.168.8.20 Primary WINS Server . . . . . . . : 192.168.8.20 NetBIOS over Tcpip. . . . . . . . : Enabled Ethernet adapter CWC_20: Connection-specific DNS Suffix . : Description . . . . . . . . . . . : Intel(R) PRO/1000 MT Network Connection Physical Address. . . . . . . . . : 00-11-43-D7-10-83 DHCP Enabled. . . . . . . . . . . : No Autoconfiguration Enabled . . . . : Yes IPv4 Address. . . . . . . . . . . : 192.168.8.20(Preferred) Subnet Mask . . . . . . . . . . . : 255.255.255.0 Default Gateway . . . . . . . . . : 192.168.8.1 DNS Servers . . . . . . . . . . . : 192.168.8.20 Primary WINS Server . . . . . . . : 192.168.8.20 NetBIOS over Tcpip. . . . . . . . : Enabled Tunnel adapter isatap.{22EE2CD6-52E8-4CE2-B9CC-8D23CD6EA794}: Media State . . . . . . . . . . . : Media disconnected Connection-specific DNS Suffix . : Description . . . . . . . . . . . : Microsoft ISATAP Adapter Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0 DHCP Enabled. . . . . . . . . . . : No Autoconfiguration Enabled . . . . : Yes Tunnel adapter isatap.{2C0F7CB0-BA11-45CD-AB01-E16EEA290382}: Media State . . . . . . . . . . . : Media disconnected Connection-specific DNS Suffix . : Description . . . . . . . . . . . : Microsoft ISATAP Adapter #2 Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0 DHCP Enabled. . . . . . . . . . . : No Autoconfiguration Enabled . . . . : Yes Tunnel adapter Teredo Tunneling Pseudo-Interface: Media State . . . . . . . . . . . : Media disconnected Connection-specific DNS Suffix . : Description . . . . . . . . . . . : Teredo Tunneling Pseudo-Interface Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0 DHCP Enabled. . . . . . . . . . . : No Autoconfiguration Enabled . . . . : Yes ipconfig /registerdns doesn't create any errors. This is primary active directory and dns server. It is server 2008 r2 standart and I don't have server 2003 running active directory or dns. Question is: How can I recreate srv records that are created automatically after dcpromo is ran. I have feeling that someone deleted zones, than recreated them, but know there is no srv records at all Any thought?

There is server 2003 with AD and DNS on network. i found that problem after I took over the network, amazingly it worked fine for while with srv records missing. I need to know ways of bringing them back. Don't feel like recreating AD. Need help quickly.

As your DC is a DNS server, you can use 127.0.0.1 as the IP address of the primary DNS server for the DC. Make sure that you have got your primary zones created and try to run these commands: ipconfig /flushdns ipconfig /registerdns nltest /dsregdns Are SRV records created once these commands launched? This posting is provided "AS IS" with no warranties or guarantees , and confers no rights. Microsoft Student Partner Microsoft Certified Professional Microsoft Certified Systems Administrator: Security Microsoft Certified Systems Engineer: Security Microsoft Certified Technology Specialist: Windows Server 2008 Active Directory, Configuration Microsoft Certified Technology Specialist: Windows Server 2008 Network Infrastructure, Configuration

Check if dynamic updates (secure) are enabled for that zone.MCITP: Enterprise Administrator; MCT; Microsoft Security Trusted Advisor

May i know why "ip routing is enabled = true " ? multihomed DC is not supported.

Hello, the DC is multihomed, more then one ip address is used which is not recommended on a domain controller. Remove one of the ip addresses and disable the unused NIC. Uninstall RRAS from the DC also. After the changes run ipconfig /flushdns and restart the netlogon service. If that will not create the DNS zones please use: http://support.microsoft.com/kb/294328 to complete reinstall DNS, the KB article applies also to your OS version. There is still an open question. "Please post the DNS domain name, the NetBios domain name and the domain name shown in AD UC" Best regards Meinolf Weber Disclaimer: This posting is provided "AS IS" with no warranties or guarantees , and confers no rights.

Well I cannot remove RRAS from that server, because I don't have other server to put it on. I got it fixed, I think. However entry starting with _msdcs.<domainname> didn't recreate. Here is how I got the srv records back 1. register both nic's with dns (that alone recreated with records) 2. run the following commmands ipconfig /flushdns ipconfig /registerdns nltest /dsregdns 3. restart server The records got recreated and Microsoft Best Practice Analyzer stop complaining about missing records. Now I can join computers to domain and hopefully it eliminated login problems experienced by some users. Now, how important it is to have the _msdcs.<domainname> record?

May i know why "ip routing is enabled = true " ? multihomed DC is not supported. I don't know. I wasn't the one who originally set this thing up. This server runs also RRAS, so it probably was configured with RRAS. Do I need it for RRAS to run properly?

The problem resolution was to make sure that "Register this connection's addresses in DNS" checkbox is not cleared. Reference: http://social.technet.microsoft.com/Forums/en/winserverDS/thread/884e59a4-0037-4714-bfdb-957046182e13 This posting is provided "AS IS" with no warranties or guarantees , and confers no rights. Microsoft Student Partner Microsoft Certified Professional Microsoft Certified Systems Administrator: Security Microsoft Certified Systems Engineer: Security Microsoft Certified Technology Specialist: Windows Server 2008 Active Directory, Configuration Microsoft Certified Technology Specialist: Windows Server 2008 Network Infrastructure, Configuration

It might be too late for this, but this could help some one looking for this information: IPCONFIG (with any switch) wil NOT re-create SRV records, only A records. To re-create or refresh SRV records of a DC you must restart the NETLOGON service . If you lost the msdcs zone on all DNS servers you could restart the NETLOGON service on each domain controller and SRV will be re-created. Verifying DNS Registration from the Domain Controller Besides A and PTR records that are registered by any Windows 2000 computer, the domain controllers also register additional records that indicate their role. Every time that the Net Logon service starts (including restarting the domain controller) the service attempts to register some or all SRV resource records as shown in the following example. The SRV resource records are registered by starting the Net Logon service, which enlists the records in the Netlogon.dns file under the % systemroot %\System32\config folder. Note To re-register the SRV resource records, at the command prompt, type net stop netlogon, and then type net start netlogon . From: http://technet.microsoft.com/en-us/library/cc961921.aspx goDog godog

It might be too late for this, but this could help some one looking for this information: IPCONFIG (with any switch) wil NOT re-create SRV records, only A records. To re-create or refresh SRV records of a DC you must restart the NETLOGON service . If you lost the msdcs zone on all DNS servers you could restart the NETLOGON service on each domain controller and SRV will be re-created. Verifying DNS Registration from the Domain Controller Besides A and PTR records that are registered by any Windows 2000 computer, the domain controllers also register additional records that indicate their role. Every time that the Net Logon service starts (including restarting the domain controller) the service attempts to register some or all SRV resource records as shown in the following example. The SRV resource records are registered by starting the Net Logon service, which enlists the records in the Netlogon.dns file under the % systemroot %\System32\config folder. Note To re-register the SRV resource records, at the command prompt, type net stop netlogon, and then type net start netlogon . From: http://technet.microsoft.com/en-us/library/cc961921.aspx goDog godog