When testing a connection, you'll probably want to check if a particular port is reachable on the destination host. Telnet is fine enou...

VmWare allows you to specify how the guest system handles swapping to the host disk. Much like Linux's swappiness value, you can sugges...

If for some reason(s) you decided to install Ubuntu without specifying a swap partition , you can still add one (or a swapfile ) later on wi...

Wireshark by default enables only the root user to capture network traffic; the idea is that as a root user you'll capture and store th...

The APT package manager allows you to test the changes a command would perform without altering the system. To do that, simply add --dry-ru...

If you need to run Windows applications under Linux, then you're probably using WineHQ . To add a Wine-installed application launcher to...

To connect to an SFTP site using a PPK key file with FileZilla , you'll just have to follow some simple steps. First, add the key fil...