On 27/05/10 21:50, Martijn Koster wrote:
Chris Walker wrote:
With the Huawei, Windows will do lookups fine but Mandriva takes ages for everything, web searches, mail and so on. Sending this message sat there for ages doing a lookup for the smtp address before I cancelled it to add this.
I *think* I've got both sides, Windows 7 and Mandriva, setup the same with DHCP for both IP address and DNS servers but is there anything I can try before I rip the Huawei out and put back the D-Link?
I've seen slow lookups like you describe when a machine was misconfigured to have non-responding DNS servers in /etc/resolv.conf (to fix that remove the bad ones), or when IPV6 lookups are tried first (simple workaround is to disable ipv6).
Not sure I'm doing the right thing here so a bit more quidance wouldn't go amiss. I have entered a figure of 1432 for MTU as that field was empty. It hasn't made a scrap of difference though.
You need to figure out what mandriva is sending to your DNS server. Try tcpdump/wireshark to sniff the network. It will also be useful to use "dig" to make explicit lookups to the DNS servers, to see if they send prompt responses.
Neither of those 2 packages are installed and I've been busy doing something else and so haven't yet had time to install them. I did try the dig thing though and that came back with :- [root@MSI chris]# dig
; <<>> DiG 9.6.1-P3 <<>> ;; global options: +cmd ;; connection timed out; no servers could be reached
That doesn't look good to me.