Stan
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Can ping by netbios and IP, but not FQDN
Hi there,
I am having a rather strange issue. I manage a small AD environment that was working fine. Something has changed and I cant work out what. The issue appears to be DNS related. Currently I can ping hostnames by netbios or IP, but not FQDN. Any suggestions as to why this might be the case?
Thanks in advance.
I am having a rather strange issue. I manage a small AD environment that was working fine. Something has changed and I cant work out what. The issue appears to be DNS related. Currently I can ping hostnames by netbios or IP, but not FQDN. Any suggestions as to why this might be the case?
Thanks in advance.
Issue "nslookup <FQDN>" at command level. Chances are it will come back with "host not found" or other DNS error. Let us know what you discover.
ASKER
Yes, that is correct. nslookup for both NetBIOS and FQDN fails with "no records available".
NS lookup fails when I try it for _ldap.tcp.dc._msdcs.FQDN on the client
NSLookup works if try on the two DC's for the environment
Now thinking back, the issue started when I force removed a dead DC and cleaned up all pointers to the dead DC in the DNS
NS lookup fails when I try it for _ldap.tcp.dc._msdcs.FQDN on the client
NSLookup works if try on the two DC's for the environment
Now thinking back, the issue started when I force removed a dead DC and cleaned up all pointers to the dead DC in the DNS
ASKER
This is failing only on some clients. I have retired flushdns, registerdns, restarted etc, and also checked the DNS servers are correct for each of these clients. But the clients that failing, still cant seem to fetch the correct SRV records. Any suggestions please?
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ASKER
I can ping localhost/IP and even localhost with its FQDN. I can ping servera by netbois name/IP, but if I try to pinging servername by its FQDN, it states "cannot find host"