Urgent network help needed

[Bill Davidsen]

Timothy Murphy wrote:
> I am away from home.
> My wife at home cannot access the internet with her laptop.
> I suspect the problem is in the home server I am responsible for.
>
> In brief, the internet can be accessed from the CentOS-6.4 server.
> Her laptop accesses a WiFi router which is connected to the server.
> I have to confess that she is the only household member
> running Windows - Windows XP in her case.
> Connect to=>Show All Connections shows the WiFi connection is good.
> But she cannot access the internet, or ping google, etc.
>
> I can get access and login to the server from far away.
> I see nothing wrong.
> I have restarted the network, dhcpd and shorewall services.
> I checked that forwarding is on.
> I can ping my wife's laptop from the server.
>
> Her setup has been working fine for months if not years,
> accessing her work over VPN.
> But now she is just trying to browse.
>
> I'm not sure what tests I can run to diagnose the problem.
> Any suggestions very gratefully received.
> They may save a marriage ...
>
I would start with "man tcpdump" and watch the packets going to/from the net. I 
might guess it's a firewall issue, but without knowing way more about your 
setup, that's guess.


-- 
Bill Davidsen <davidsen at tmr.com>
   "We have more to fear from the bungling of the incompetent than from
the machinations of the wicked."  - from Slashdot