Hello, we have a mixed environment at work: CentOS + Win2003 servers. The Win2k3 part contains: AD, DNS (inlc. dyndns), DHCP, DFS, Exchange. The CentOS part: NIS passwords + also a DNS server. So currently we have to update the Linux DNS server zone infos by hand: I export a text file from Windows DNS server and then edit it around using vim. On the Windows side however it's easy for me to setup additional DNS servers at other machines: I just configure them as "secondary" and they pull zone infos automatically. I wonder if there is a way to setup such a "secondary" DNS server under CentOS as well? And no, I'm not asking about how to setup a DNS-forwarder. (Because I want the Linux server to pull and maintain zone infos automatically and to work even if Windows-counterpart is down.) Regards Alex