No more extra talks. If you have a direct download link and want to download the file over bittorrent protocol just go to
Nmap official website does not provide .deb package for latest (5.50 as of writing this post) or any version for Nmap, Zenmap, Ncat. If yo know how to install Nmap from source then there's no problem but if you want debian package for Ubuntu or Debian here is the packages:
VLC or Video Lan Client is one of the most useful opensource media player of the time. Being a cross platform it is easy to play on Windows/Linux/Mac/Solaris world.
The default repository for VLC is not good handling latest releases for updates. For getting latest VLC releases you need to add another repository manually under your Ubuntu.