Comments on: Ubuntu Server Not Seeing Localhost?

By: jbdough

jbdough — Thu, 22 Oct 2009 20:15:32 +0000

Thank you!

I am not sure why I commented out the lo directives when I assigned a static IP, and was pulling my hair out trying to troubleshoot why I could not network browse or load swat from localhost, but could from elsewhere on our little lan.

By: eafarris

eafarris — Wed, 31 Dec 1969 17:00:00 +0000

I had a similar problem with one of my Ubuntu boxes. Everything remotely seemed to be working, but postfix refused to deliver local mail, because it couldn’t talk to localhost. In my case, the loopback interface (lo) was down. Maybe it’s down for you, too: does the “lo” interface show up in ifconfig? If not,

sudo ifup lo

did the trick for me.

hth,
e

By: dnorman

dnorman — Wed, 31 Dec 1969 17:00:00 +0000

eafarris: thanks! turns out my /etc/network/interfaces was missing the lo entry, and after I added that, restarted networking, and fired off the sudo ifup lo, all’s good.

thanks!