[GLLUG] /ect/hosts gone bad

Stephan Andre' andres at msu.edu
Tue Jul 3 13:50:08 EDT 2007


On Tuesday 03 July 2007 13:39:13 Jordan Robison wrote:
> I was messing with the hosts file and changed something around and I spent
> the rest of the night trying to fix it. Here is the problem that happens
> every time I use sudo:
> sudo: unable to lookup jordan via gethostbyname()
>
> I am not able to do anything under Su and from what it looks like is that I
> might have to reformat unless you geniuses out there know of any better way
> of  helping me fix this problem.

You give no indication as to what operating system you're using, but if you 
have single-user mode, you ought to be able to boot up into that, and then
fix the hosts file.

This is also a good time to develop a system of saving and storing critical
data files, such that if they get munged they can be restored quickly.  My
/etc (OpenBSD) is about 8M in size, so its easy for me to make a tarball
of that dir frequently.  Add /var/log, /var/www and perhaps a few others
and you have the core of a configuration backup.

--STeve Andre'



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