Date: Wed, 7 Dec 2016 01:24:40 +0100 From: Bertram Scharpf <lists@bertram-scharpf.de> To: freebsd-questions@freebsd.org Subject: Closed port 22 in the jail redirects to the outer system Message-ID: <20161207002440.GA26711@becker.bs.l>
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Hi, I'm fed up with my log files being polluted by failing SSH login attempts. I disabled password authentication totally so there's not really a security problem, but it's annoying. Using a higher port number does only help for a while. All I want to do is to log in myself from remote. Now I tried to do the following: A jail runs an HTTP server with several subpages. One of them asks for a password and then starts an SSH daemon that accepts just one connection and closes afterwards. From inside the jail then I can ssh to the outer machine. But: As long as the SSH daemon inside the jail doesn't run, the port 22 request gets caught by the outer system and again I get my logfiles polluted. How can I make a port 22 request fail if an SSH server is running on the outer machine but not inside the jail? Thanks in advance. Bertram -- Bertram Scharpf Stuttgart, Deutschland/Germany http://www.bertram-scharpf.de
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