My Linux computers have stopped connecting to the web

winterfire · 11-30-2007, 07:46 AM

I've been using linux for about 6 months with very few problems (all of which were solved by this forum), now I've developed a new one. When I booted my Ubuntu box and tried to go to the web, I get the web page unavailable page. I checked the settings and tried it again, still nothing. I've tried Puppy and Damn Small Linux and even a friends Xubuntu box. Nothing works. My two Windows machines can access the web normally and the linux machines will access the web from internet hotspots around town, just not at home. I've made no changes to my settings at home and no changes to my computer.
Has anyone else had this problem, and how do I solve it.Thanks for your help.

jschiwal · 11-30-2007, 09:02 AM

You need to fill in more details.

Can you ping back and forth between your windows hosts and the Linux host.

Look at your /etc/resolv.conf file. Are your ISP's nameservers listed?

Does filesharing work or ssh work with the linux boxes?

Are you using wireless at home? Did you change the PSK in the router?

Look at the output of "ifconfig" and the "route" commands. Is your IP in the same subnet as your router? Is the router's IP listed as the default gateway?

Try the host command, as in "host www.linuxquestions.org" to check dns.

Check the "host.conf" file. Does it contain

Code:

order hosts, bind
#
# The following options are used by the resolver library:
#
multi on

Check the /etc/nsswitch.conf file.

Code:

hosts:          files mdns4_minimal [NOTFOUND=return] dns
networks:       files dns

These two lines are important. The hosts: line should correspond with the host.conf line.

Good Luck!