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Old 06-13-2008, 12:23 AM   #1
theunixwizard
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Registered: Feb 2008
Distribution: Ubuntu,Fedora,PC-BSD,FreeBSD
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Ubuntu Wired connection problems???


I have recently updated my computer to 8.04 and my wired connection
worked perfectly until about two days ago!!!!

Here is what Ifconfig said
stevie@stevies:~$ ifconfig
eth0 Link encap:Ethernet HWaddr 00:0b:db:99:0e:6d
inet addr:192.168.1.104 Bcast:192.168.1.255 Mask:255.255.255.0
inet6 addr: fe80::20b:dbff:fe99:e6d/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:3153 errors:0 dropped:0 overruns:0 frame:0
TX packets:3115 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:2384584 (2.2 MB) TX bytes:493563 (481.9 KB)
Interrupt:10

lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:2688 errors:0 dropped:0 overruns:0 frame:0
TX packets:2688 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:135930 (132.7 KB) TX bytes:135930 (132.7 KB)

Please tell me there is hope

Thanks again
John

The Demon and the Penguin unite against the evil Window

Last edited by theunixwizard; 06-13-2008 at 12:24 AM.
 
Old 06-13-2008, 12:59 AM   #2
dkm999
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Registered: Nov 2006
Location: Seattle, WA
Distribution: Fedora
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So there doesn't appear to be any problem with the low-level hardware; it appears to be receiving and sending packets willy-nilly, without any errors. What does not work?

Your debugging will be easiest if you can work your way up the networking stack one step at a time.

1. The hardware link seems to be sending and receiving packets.
2. Can you ping another machine on your local net (or your router) using an IP address? This will tell you if the IP layer is happy.
3. Can you ping another machine elsewhere in the world using an IP address? This will tell you if your routing is working right.
4. Only then, try to ping some machine using its name. This will test if DNS can resolve a name to an IP address.

After all that works, then test each system controlled by a daemon: mail, web, ftp (if you use it), etc.

Good luck.

BTW: there is always hope.
 
Old 06-13-2008, 11:18 AM   #3
theunixwizard
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I am unable to even get a ping out

When I ping google.com the terminal just lags and about 3 mins it
tells me unkown host...
If i try to apt-get install elinks it will go thru
the process of telling me how much space will take up.
then when it goes to retrieve the packages it will lag
 
Old 06-13-2008, 12:33 PM   #4
dkm999
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Registered: Nov 2006
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Distribution: Fedora
Posts: 407

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As I said in my previous post, ....

First try to do these ping experiments using IP addresses, rather than names, so that we can separate DNS problems from routing and firewall problems. It really will make it much easier to diagnose the trouble this way.
 
  


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