in my network i’ve a windows 2003 domain controller and dns service on it. everything is going well. now that i decided to create couple of cnames for my mail server named “Mail” , “SMTP”,”POP” i faced the following problem: i can ping them for a very short time (about 5 minutes). after that all ping request fails : Ping request could not find host Mail. Please check the name and try again.Until i restart dns client services . when i totally disable dns client service there will be no problem at all but it’s impossible to go behind every clients to disable this service.
by the way, nslookup can always resolve these cname , even when ping cannot.
i’m open to hear your answers. thanks
