SSH or SRP

Ive a question, and need some advice. I need to secure a linux development box. It is on the web, and requires to offer telnet, ftp, http and possibly vnc. I have been looking at Stanfords SRP package and open ssh. Which will suit my needs better or should I use both, or or there alternatives. -- Victor Sturgeon Software Engineer & Computer Systems Consultant victors@enteract.com