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Old 04-20-2010, 12:46 PM   #1
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eth0 not working but virtual hosts are

First of all hello everyone and thank you in advance to anyone who tries to help, I really appreciate you taking your time to help us newbies....

now on to my problem, Some time throughout the night last night eth0 stopped working entirely, I could not resolve dns or any thing. Oddly though eth0:1 and eth0:2 worked perfectly with a ping -c 10 -I eth0:2 but still could not resolve domain names. My nameservers are good as i have tested them on my other machine. My setup had been working fine for quitte some time and i did not make any changes besides updating webpages, it is a server running Debian Lenny. Unfortunatly since eth0:1 was working for the most part i was trying to change the IP's in the config and accidentally killed the settings using webmin so I cant post to many details at the moment until my host for the dedicated gets my /etc/network/interfaces restored but in the meantime i have searched all over google to try to find an answer to the original problem but cannot so i would like to prepared for when the server is accessible again.
Once again thanx in advance.
Old 04-21-2010, 07:07 AM   #2
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Location: Potchefstroom, South Africa
Distribution: Fedora 17 - 3.3.4-5.fc17.x86_64
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Hmm, I think you might have more complex problems that I suspect, but have you tried the following as root in a terminal:

/sbin/ifconfig eth0 down
/sbin/ifconfig eth0 netmask broadcast up
/sbin/route del default
/sbin/route add default gw eth0
where - the IP you want to assign to your machine - the IP of the gateway / router that gets you to your ISP to have internet access

This is, to completely take eth0 down, and then get it back up on a fixed IP address...?
Old 04-21-2010, 07:43 PM   #3
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No i haven't. unfortunately it is on a remote server.
I installed bind9 and it seems to have got things working, but it still leaves me wondering what happened to begin with. I don't want to do anything where I might lose the limited connectivity I have.


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