Thursday, August 12, 2010

Hide OpenSSH Debian Distribution Version on Ubuntu

From the previous post about OpenSSH banner on Ubuntu, I just found the easy method to hide the distribution version in Ubuntu 10.04 by chance.

The Ubuntu 10.04 has the new option for sshd_config. That is "DebianBanner". You just have to add "DebianBanner no" line (without quotes) into sshd_config, then restart it. Your OpenSSH banner will change from "SSH-2.0-OpenSSH_5.3p1 Debian-3ubuntu3"

Normally, Ubuntu ports code from Debian. So I checked the option in Debian as well. I found the option in Debian 6 as well.

PS: The option has been added since Ubuntu 10.04.


  1. I would like to exchange links with your site
    Is this possible?

  2. Very useful - thanks!

  3. Thx for the tip ;)