External SSH Connection Fails

view full story

http://serverfault.com – I'm playing sysadmin for a day and standing up a new Ubuntu 12.04 box. The box has 2 NICs - 1 for internal connections, one for external. I'm able to ssh into the box using the internal ip (ssh [email protected]), but not through the external name or IP. Ultimately, I get the all too familiar "Operation timed out" message. Info that may or may not be useful to experienced admins: I don't have anything fancy in my iptables (default content) My sshd_config has the box listening everywhere for everything Telnet also fails (telnet 172.XXX.XXX.XXX 22) My /var/log/auth.log and /var/log/syslog fi (HowTos)