DNS & Firefox fails on Linux, WindIE works only on older windows OS, ex not Vista

[Hakan Koseoglu]

Giovanni,

On Sun, Apr 25, 2010 at 6:07 AM, giovanni_re <john_re at fastmail.us> wrote:
<snip>

> Anyone heard of, or anything about, or can figure out this problem, or any useful analysis steps/probes??

That's a rather confused brain-dump. It looks like a network problem,
not an operating system issue.

Things to check:
Do your older laptops use a proxy server by IP in the IE
configuration? This might explain why they can access the net w/o a
DNS server since the requests would be by a long-forgotten proxy
server.

Check the /etc/resolv.conf and the output of netstat -r (to show your
routing) on your Linux boxes to see if you are getting the values you
want out of the DHCP server on the router.

Same with the more recent Windows boxes. Check the details of the
route and DNS settings with the ipconfig /all command.

> =====
> Note: 6-12 months ago i did something that gave me a manufacturer or model name for the gateway/router, but I forgot what I did. Telnet to some port on it's IP? traceroute??

nmap can figure out the maker of the network card OS. Try it but the
best is getting the password for the router and checking the DHCP
settings.

Firefox & IE use the DNS information as reported by the OS and will
not go and try to do it themselves. That said, I found that on Ubuntu,
Firefox caches that information and any changes to /etc/resolv.conf
won't be activated until Firefox is restarted.

-- 
Hakan (m1fcj) - http://www.hititgunesi.org