Ubuntu holding onto invalid dns entries

[N. Pauli]

Dear All,

I've just moved whatever runs on server.mydomain.com from one machine at a hosting company to another at the same company. Having done that I contacted the company that hold our A records and asked them to change the A record for server.mydomain.com to point to the IP address of this new machine - which they duly did.

On all the windows machines on the network browsing to server.mydomain.com gets you to the new machine. However, browsing on my ubuntu workstation always takes me back to the old machine. I've tried running nscd and doing 'sudo /etc/init.d/nscd restart' to flush the DNS cache - to no avail. I've cleared out caches in Firefox. The thing is it is not a Firefox problem because when I used Konqueror instead it did the same thing. Somewhere invalid DNS data is being cached and I simply cannot get at it.

Any suggestions for getting Ubuntu to use DNS caching sanely?

Regards,
Nigel

-- 
Nigel Pauli
Network Manager
St. John's School, Northwood
http://www.st-johns.org.uk/