Shamelessly taken from http://www.howtoforge.com/ssh-best-practices

Introduction

Are you using SSH in the best way possible? Have you configured it to be as limited and secure as possible? The goal of this document is to kick in the new year with some best practices for SSH: why you should use them, how to set them up, and how to verify that they are in place.

All of the examples below assume that you are using EnGarde Secure Linux but any modern Linux distribution will do just fine since, as far as I know, everybody ships OpenSSH.

SSHv2 vs. SSHv1

By Federico Kereki on July 12, 2007

A computer running Linux can outperform the same computer running Windows XP or Vista. Even so, you may be able to make your Linux system even faster. Here are three optimizations, at different levels, that can make your Linux system perform better.

By Sean Michael Kerner

The third Linux kernel release of 2007 is now out with memory management and wireless among its improvements.

The 2.6.22 kernel release comes after seven release candidates were put out with the first one issued in May. It includes a long list of update and improvements which Linux founder Linus Torvalds was keen to boast about.