Suddenly No Internet

Hello,

I am working on a Red Hat Enterprise 3 (ES) server with Mozilla 1.4 and Konqueror Web Browsers.

I left the server for a few hours. When I returned I could not access the internet.

I was getting a message like www.google.com unknown host ...

I rebooted by server and still have the same problem.

Ideas ?

PT

Try pinging 66.94.230.46(yahoo) by ip instead of name, if it pings it might just be a name resolving issue. make sure you have DNS entries in /etc/resolv.conf kind of like this
nameserver 216.148.227.x
nameserver 204.127.202.x
but if you still can't ping do a "route" and make sure you have a gateway entry
like this one:
default 67.177.x.x 0.0.0.0 UG 0 0 0 eth0

Hello,

Everything looks fine.
I can ping yahoo and I have a /etc/resolv.conf file with 3 etho entries.

Any ideas what is going on ?

In the Web Browser Konqueror / Mozilla:
cannot find host www.google.ca ???

PT

Hello,

This is the file:
=====

destination category genmask flags verif ref use mask
192.9.200.0 * 255.255.255.0 U 0 0 0 eth0
169.254.0.0 * 255.255.0.0 U 0 0 0 eth0
127.0.0.0 * 255.0.0.0 U 0 0 0 lo
DEFAULT 192.9.200.80 0.0.0.0 UG 0 0 0 eth0

Any ideas ?

PT

Hello,

Again the same problem occurs, suddenly from one day to the next I can no longer access the internet from my Mozilla / Konqueror Web Browsers.

I checked the resol.conf file and this is what I get:

nameserver 192.9.200.80

I can ping Web sites like Yahoo at 66.94.230.46 and can call up Yahoo from MOzilla like http://66.94.230.46. However, when I type http://www.yahoo.com, I get nothing.

1) How can I resolve this intermittant problem ?

PT

When you can Ping a host and also get the page to load up by IP, that's saying to me your DNS is not working.

What or who do you use for a DNS entry in there.

You can use any DNS IP you choose but make sure it's one that doesn't go down.

Heck, check out earthlinks DNS and set those numbers in there if ya want.

Doug is right. These are the classical symptoms of a dns problem. I would contact your ISP and ask them for the IP addresses to their dns servers. You could also do as Doug suggested and add in dns servers from other places on the net, but you will probably get a little performance boost by using the ones that belong to your ISP. You can have as many name servers as you want. Just add them to your resolv.conf file.


P.S. If I understand correctly, what you called above the "resolv.conf" is really the output of "route", and what you called "resol.conf" is really "resolv.conf". If you did type these right, then it would explain why you are having problems.