Could you recommend a ressource for images which have weak spots to learn more about Pentesting?

Question

I am looking for prepared OSes (Linux, Windows, maybe Macintosh) which contains security holes to train my skills in pentesting. My plan is to start a VirtualBox instance, use the common tools (e.g. Nmap, Metasploit, Wireshark) and finally find out, which programs or components contain security holes or maladjusted services. Could you recommend a site which provides such preconfigured images?

Answer 1

g0tmi1k wrote a big article about things which are vulnerable by design.

http://g0tmi1k.blogspot.com/2011/03/vulnerable-by-design.html

 his post is great!

Answer 2

Wow, thank you, looks very good... :)