Security: SSH Tips

I came across this article demonstrating “other” features of SSH besides acting as a secure standing of Telnet. While some of these features are well known, such as key based logins as opposed to password based logins and X11 forwarding, some of them are really cool, like remote command execution similar to REXEC, and mounting filesystems using SSHFS and Fuse. I especially liked this one since it is an improvement over NFS. I look forward to actually trying this out when I get a chance. I wonder what the more security minded folks would think about some of these tips.