Re: DNS issue

From: Allen McIntosh (nospam_at_mouse-potato.com)
Date: 03/23/05 

Date: Wed, 23 Mar 2005 09:32:15 -0500

> *when i ping yahoo.com or apple.com (for example) from linux, i get
> times of 1000 ms at times (vs) the 30-40 ms i get from my windows or Mac
> box.
Try "ping -n". Doesn't do reverse DNS on the address.

How fast does "host" return? This would help you figure out if DNS
delays are the problem.

Find out what your router is using for its gateway. Try pinging that.

> i'll provide more info if needed. but does anyone know what could be
> causing these problems on my linux laptop. and never on my iMac or
> Windows PC. i use mozilla and firefox on all computers. and the
> computers are all plugged into the same router with the same settings
> for all computers.
Are you sure you don't have a hardware problem? What is the error count
on your interface?

Maybe post diagnostic stuff (route -n; ifconfig) here. I know you think
you have everything right, but sometimes multiple pairs of eyes can help.

Another thing you can do is run "tcpdump -n" in another window while you
run ping (or use ethereal, with DNS resolution off.) This might turn up
something suspicious. 

-- 
My real e-mail address is *aamci* *at* *optonline* *dot* *net*
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