[UNCLASSIFIED]RE: [clug] FC5 Yum Problems continues

Antti.Roppola at brs.gov.au Antti.Roppola at brs.gov.au
Mon May 1 00:10:43 GMT 2006

tcpdump should also let you see if this is occurring.

If the DNS on the router is playing up, an immediate fix
would be to not use the modem's DNS facility. Switch it off
on the modem or set up the client oto use somewhere else
for DNS (i.e. direct to the ISP's DNS or roll your own).

A quick test would be to add the Yum server to your hosts file.


-----Original Message-----
From: linux-bounces+antti.roppola=brs.gov.au at lists.samba.org [mailto:linux-bounces+antti.roppola=brs.gov.au at lists.samba.org] On Behalf Of Graham Williamson
Sent: Sunday, 30 April 2006 11:58 PM
To: linux at lists.samba.org
Subject: Re: [clug] FC5 Yum Problems continues

Use Ethereal and capture the traffic, especially the DNS requests generated by yum.  I had some funny DNS resolution issues with an Netcomm NB5 (borrowed from a friend).  After the device had been on for x amount of time, all of a sudden the DNS answer being returned by the router would all have an address of  I don't know what was causing the problem, after power cycling the device it would be fine, for a short time.  I'd get around it by manually specifying my ISP's DNS servers in all of my computers network settings, thereby bypassing the router.  Then all was fine. 

I have since given this modem back to my friend and purchased a Netgear DG834G, and I've had no problems since.  All I can put it down to is an issue with the firmware, but who knows.  So check out what ethereal captures and maybe it might shed some light on the subject.  That's what I always do when things start acting, funny....

Good luck.
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