Slow dns resolution
Posted on 2008-10-21
I have a server running SBS 2003 without the ISA server. There were no issues until this last weekend when I shut down the server to move it to a new server room. Upon rebooting the server at its new location, all internet is horribly slow both on the server and on all clients. The server was setup to resolve all dns (standard setup). Running a ping to an outside server takes about 15-20 seconds to resolve, and then once resolved it responds with very low latency. Similarly, when loading a large website, the dns takes forever to resolve, but after resolution, it loads very fast.
I tried switching the dns on the server and also the DHCP settings for the workstations to point towards the ISP's DNS servers. This resolved the resolutions issues for the outside web, but created a lot of issues on the internal network with name resolution.
Any forum I've searched so far about the issue seems to recommend simply using the ISP's dns servers for everything. I however, don't see this being a viable solution as I need the server to resolve the dns. Any help would be great!