can't access ssh/telnet

[mika0]

I started to see this problem (was working fine) and I've no idea why.

I can connect via ssh and I get "Welcome to Tnas!" then connection closed.
I can connect to telnet but I get "Permission denied".

I've tried restart and it didn't help.
What should I do?

[mika0]

turns out I edited the /etc/security/limits.conf with invalid values and sshd is not happy about it.
for ppl who are in the same shoe you can use web terminals (install them as app in web) and fix the limits file.