I have backtrack and metasploitable running on my Macbook pro and I am trying to run
**exploit/unix/webapp/tikiwiki_graph_formula_exec** exploit on msfconsole to penetrate the metasploitable operating system. But once i have setup the IP address of the metasploitable and I run the exploit i get the result "The target is not exploitable". On the other hand when I run the nmap command to check if there is any open port i do find that the
"80/tcp open http".
My question is what could be the problem, i am using Backtrack 5 R3 and metasploitable as my testing machine. Another thing is when I try to run
"*nc Ip address HEAD / HTTP 1.1"* I get that post is unreachable could some one tell me what can be the issue.