Guest guv Posted July 4, 2007 Posted July 4, 2007 I have a setup a domain on our test bench to test some disaster recovery scenarios. It has 2 windows 2003 Sp1 servers. One server is a domain controller and the second server is an exchange server 2003. Everything was working fine. I tested a disaster recover scenario where I trashed the exchange server 2003 and then rebuilt it again to see if I could recover it. I made backups of the system state and exchange server database. I have put this exchange 2003 server back on the test domain again as part of the recovery process. The problem I have know is that I can ping the domain controller from the exchange server but I cannot do vice versa, meaning I cannot ping the exchange server from the domain controller. I have checked all the network settings and they are all fine. But if i create an AD account I can use that account to log into the exchange server, so the domain part is ok., but I dont know why i cannot ping the exchange server from the domain controller. This causes me issues as I cannot install some remote backup agents from the domain controller to the exchange server which I need to a restore. I have checked the event logs of the domain controller server and since I have started to get this issue I have started to get the following warnings in the system log: Event ID: 40960 Source: LSASRV The Security settings detected an anuthentication erro for the server LDAP\<Domain Controller Server Name>. The failure code from Authentication protocol kerberos was 'There are currently no logon servers available to service logon requests' I also got some ipsec events saying that the ipsec driver is started in bymass mode. I have no idea why the ipsec message is appearing but I disabled the ipsec service, but still get that event logs. I also got some NTPClient messages about the W32time. But I am more concerned about the LSASRV error log. From this can anyone advise why the the domain controller cannot ping the exchange server.
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