Securing SSH using denyhosts

Tuesday, 28 August 2007, 11:08 AM EST

SSH is a great way to remotely administer a server. However, it still has a number of issues when you open it up to the world. The server and client communications are secure but that doesnít mean the hosts involved are. Opening an SSH service to the world allows for brute force attacks and means that the carbon interface is still the weakest link.

There are some very simple steps you can take to really harden remote access over SSH, especially if you canít simply tie the service down to a limited number of source ports.

At Ubuntu Geek.

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