2010/10/12 Ryan Manikowski <jeenam at gmail.com>: > On 10/11/2010 7:44 PM, Joseph L. Casale wrote: >> >>> Specifically, how can I hide the port that SSH is running on? >>> I'm sorry that I cannot provide the IP addresses, the owner of the servers doesn't want that! I also know how silly it is to do "stealth" >>> ports but I'm not the one making the decision! > > One method to obscure the presence of the ssh daemon would be to use > port knocking: > > http://dotancohen.com/howto/portknocking.html > > > Honestly (and this is mere opinion), the other person (who wants to hide > ssh-the owner) is being paranoid. Use strong passwords, run ssh on an > alternate port, don't expose unneeded services to the outside world, and > install something like fail2ban to block ssh attackers. Just disable password authentication on ssh and use only keyfiles .. -- Eero