Use Direct Ethernet for File Transfers (Mac only)

Here's a quick tip. Have you ever needed to transfer files between 2 macs, and didn't have a running network or firewire cable available? OSX will function as if on a network by connecting the two machines using one Ethernet cable. In case you're not aware, this will work over firewire as well.

Just make sure file sharing is turned on in the sharing system preferences panel. The network cards in the Macs will sense the connections and make the appropriate changes for you to see the other computers in the finder's shared section.

Doing this on a PC requires a crossover cable and a bit more work, but it will work as well.

Setup FTP server at home on your Mac

There are several ways to setup FTP on your home Mac. I'll cover the 2 most common ways I would consider for doing this myself. Below I will describe both methods (A and B) and how to access them (C):

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Mac Keyboard Shortcuts

Be more productive on the mac using key combinations. There are plenty of keyboard shortcuts in OSX.  Check out the list below for some of the most commonly used ones.

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Find out your external IP adress

If you've ever been behind a router/firewall and needed to find out what your IP address is to the outside world, here's a few ways to find that information.

The easiest way is through your web browser:

http://whatismyip.org/
http://www.ipchicken.com/
http://checkip.dyndns.org/
http://myip.dk/

Use which ever is easiest for you.

You can also find it via the shell in Linux, and the Terminal in OSX.

Linux: wget -q -O - checkip.dyndns.org | sed -e 's/[^[:digit:]|.]//g'
OSX: curl www.whatismyip.org