Thanks to: Posted by jbj on Sep 22, 2008 in GNU/Linux, Operating systems at catswhocode; and rescued from archive.org so I’ve them near when needed.

VBoxManage is the command line way to manage your VirtualBox hosts.

To maintain you macports repository clean and without unused stuff, proceed with:

Virtualenv creates a completely separated sandbox for python and it’s tools.

Iptables

Do you have a firewall or some computer with any kind of exposure to the Internet? Then you might want to use iptables for filtering/blocking/forwarding your connections. Lets see some examples.

This are little bits I frequently use and sometimes forgive.

Managing to get into several different severs, has provoked my .ssh/config file to be modified.

Update: 2014-02-06 17:46

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