I have mostly used Ubuntu and Debian-based distributions till now which means the other side of the Linux world, where the RHEL based distributions reside is still a grey area to me. Recently I needed to install CentOS server in VirtualBox to test something out. But soon I found that it's a little cumbersome to work in the VirtualBox vm window because I can't copy/paste texts normally to/from the VirtualBox as I can do in Terminal and I can't cycle through the open windows in my guest machine using Alt+Tab when I am using the vm. So I decided to ssh to the CentOS guest from the host machine and work from the host Terminal instead.