Internet Download Manager (IDM) is undoubtedly is one of the best download managers for windows. But it is not available for Linux environments. On Linux one uses wget or cURL or have to reply on browser downloading capabilities.

OWASP Directory Access scanner, OpenDoor, scan a website for all possible ways it can find in order to find some "juicy" information or pages. It is also capable to scan sub-domains of a website.

Usually if you want to remove files from Linux /bin/rm *.ext will do the trick. But there is a limit to what rm can do. If you tried to do this where number of files are in millions this command simple do not work.

i have download Backtrack 5 r3 and install it in VMware, everything went smooth unit when i start the GUI. The display was very small, as i am not a Linux pro, i started to here and there to change the screen resolution.