undomiel wrote: » Are they having problems connecting to the short netbios name or the fqdn from the other site? Connecting to host doesn't work but host.domain.local works just fine? If so then make sure that your DHCP is handing out the DNS suffix for the systems to append to their queries. If neither are working then you'll want to run nslookup and see if you can resolve queries from the servers. You might need to break out wireshark and see if you're getting any responses. The reverse lookup zone is basically just to ease troubleshooting. I always recommend having them configured. For the forwarders I would run nslookup from the DNS servers and point it to the ISP's DNS and see if queries are resolving. Though I generally prefer to use Google's public DNS servers myself.
nslookup somehost dnsip
nslookup server dnsip set vc somehost