Unable to host servers.

dh_ · 01-27-2013, 08:12 AM

Well, I get this issue with both my ethernet and wireless cards. Basically if I run “nc -l -p 1234” in one terminal and “nc localhost 1234” in another, anything I type in one will not show up in the other. The system calls that set everything up seem to complete successfully, but the data just doesn't reach the server for some reason. Any ideas?

EDIT: By the way, I can successfully send data to a server hosted somewhere else using nc. It just fails when I try to send data to my own server.

acid_kewpie · 01-27-2013, 11:47 AM

presumably it's related to iptables rules, show us "iptables -vnL"

dh_ · 01-27-2013, 09:12 PM

Turns out I just needed to put the lo device up. Quite weird, I think, since not even my private network address would work.

acid_kewpie · 01-28-2013, 02:23 AM

lo should *always* be up, any ideas why it wasn't?

dh_ · 01-28-2013, 09:25 AM

Well, I run the same distribution on two computers (Slackware 14.0) and it seems lo gets put up by the rc.inet1 script. I installed wicd, which is in the extras directory, on my laptop and because of that it loads rc.wicd instead of rc.inet1, which doesn't put lo up. I've fixed this by adding “ifconfig lo up” to rc.local.