Monday, October 20, 2003

No, I haven't forgotten that I've got a blog. In fact, I've got a ton of stuff to put in here. But I've just been way too busy.

A quick note, though. Something I learned the hard way this morning. Both DHCP and WINS don't seem to like sitting on a box that has a NIC with multiple IP addresses. Most of the time, they seem to bind to whichever address is the primary, but it's not 100%.

I had a server that was soley a PDC with DNS, DHCP, and WINS. I've been wanting to get it out of the rack (mainly for the space). I've got a perfectly capable Dell server that I moved the services to.

But, since so many of my clients have static IP addresses (grumble), I needed to ensure that the IP of the old server still would resolve names. Easy enough--just add the address to the adapter on the newer server, right? That worked great for DNS, but WINS and DHCP choked. They both bound to the primary address only.

So, if you ever have need to move those services to a machine with multiple IPs on a single card, check the services after the fact to make sure that they bound to the card you were expecting.