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Monthly Archives: April 2013

Fore those of you who are into networking and Lego.

Righteous IT

Hal Pomeranz, Deer Run Associates

Tell me what this is:

If you said, “Hey! That’s a TCP header diagram in Lego(TM)”, or perhaps, “Holy &^%@! That idiot made a TCP header diagram in Lego(TM)!”, then you’re exactly right!  This is another one of those wild, wacky ideas that we dreamed up in the middle of one of my SANS classes (note to the SANS staff: shorter breaks might be a good idea).  I bet my students never thought I’d actually do it.

Of course, you know I couldn’t stop with just doing the TCP header:

Now why am I wasting all that space on the building plate in each case?  Why so you can put them together of course:

The use of color here really highlights certain portions of the packet header.  For example, the source and destination addresses and ports really jump out.  But there are some other…

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So I may be late to the party for Ubuntu 12.10 Quantal Quetzal, but as someone who just upgraded from 12.04.02 Precise Pangolin, I found an important issue affecting my crontab: the path to external media devices such as the backup hard drive I have plugged into my machine has changed.

Previously, if I’d wanted to access the contents of the external disk SCALZI from the command-line, I would have simply gone to /media/SCALZI/; this, however, is no longer the case.  In the new scheme, this media mounts at /media/[username]/[device]/, so in the case above, I would instead go to /media/hilary/SCALZI/.

The more you know.

(Yes, I name my external media after authors.  I have, among my collection of flash drives, Scalzi, Asimov, Gaiman, Pratchett, and Pierce.)