I don’t know of any sysadmin who hasn’t at least heard of ssh. Let alone at least uses it to maintain their servers. Without ssh we would have to rely on such tools as telnet or rsh. Thanks to the folks at OpenBSD we have OpenSSH a secure implementation of the ssh protocol, including daemon and supporting client applications. On October 1st they release version 5.3 of their product.
Using various packaging systems or the ports tree available for your operating system you can install this with little difficulty.
You can read more about OpenSSH on the 5.3 release notice page.
