Remotely Unlock Fully Encrypted Debian Squeeze

[slothrop]

I followed the tutorial[1], but when I try and ssh to my server, I get a "Connection Refused" error.

I have tried changing the port in /etc/defaults/dropbear and allowing that port in ufw (22 is disabled). But nmap shows that at boot the new port is closed. In fact, all ports seem closed.

How can I make sure that a port is open so I can unlock the LUKS container?


1. http://www.howtoforge.com/remotely-u...debian-squeeze

[sjau]

you use debian squeeze?

[slothrop]

Originally Posted by sjau

you use debian squeeze?

Yes. x86_64:

Distributor ID: Debian
Description:    Debian GNU/Linux 6.0.3 (squeeze)
Release:        6.0.3
Codename:       squeeze

[sjau]

once the initrd is booted, can you actually ping the server?

[slothrop]

Yes: I can ping the server, but nmap shows all the ports as closed.

[sjau]

when you can ping it, it means the networking is up so the altered initrd works.... as for the port, no idea...

Setup an encrypted Squeeze in a vm, run the script and try if you can remotely unlock it - well, you can.... so you have something configured somewhere that prevents that. I can't help you with that.