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Hi. I'm a Unix Administrator, mathematics enthusiast, and amateur philosopher. This is where I rant about that which upsets me, laugh about that which amuses me, and jabber about that which holds my interest most: Unix.
Old

openbsd tcpdump + wireshark

Posted 02-27-2013 at 10:50 AM by rocket357 (Musings on technology, philosophy, and life in the corporate world)

I'm taking a class in a few days to delve into some deeper packet analysis than I've done before, and the instructor is a wireshark fanatic. Wireshark can be compiled on OpenBSD, but it has a reputation for security issues. I need a way to capture with tcpdump (privileged) and decode with wireshark (unprivileged) in realtime. Simple enough:

visudo (add "my_user ALL=/usr/sbin/tcpdump")
Download and compile wireshark (http://www.cromwell-intl.com/unix/co...n-openbsd.html...
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Old

Book Collection: Other

Posted 12-29-2012 at 03:59 PM by rocket357 (Musings on technology, philosophy, and life in the corporate world)
Updated 09-03-2014 at 03:55 PM by rocket357

I have a standard Book Collection of Computer/Programming/Network/etc... stuff, but today it occurred to me that I don't have such a list for my other main interests: philosophy and mathematics (with a bias towards any book that combines these topics with computers =). So here it is, the list of books I want (don't own *all* of them, yet, but I'm working on that bit) (the list isn't complete yet...far from it. Suggestions are more than welcome!):
  • Philosophy
    1. Introduction to Mathematical
...
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Old

[ $RANDOM -gt 16383 ] && move_up || move_across

Posted 12-22-2012 at 12:15 AM by rocket357 (Musings on technology, philosophy, and life in the corporate world)
Updated 12-22-2012 at 12:21 AM by rocket357

My boss has mentioned a big opportunity coming up. He's mentioned it on more than one ocassion, and he has dropped "subtle" hints ("Jon, <VP of my dept> mentioned that he needed a name for an internal candidate to put in charge of a new team, and you were the first one that came to mind") to clue me in that I should be preparing for a new role. The promotion would require travel, involve a very serious increase in responsibility and stress, and a just-as-serious pay increase....
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Old

A new approach

Posted 12-18-2012 at 04:58 PM by rocket357 (Musings on technology, philosophy, and life in the corporate world)

"There are two ways of constructing a software design: One way is to make it so simple that there are obviously no deficiencies, and the other way is to make it so complicated that there are no obvious deficiencies. The first method is far more difficult." - Tony Hoare.

Spend enough time reading security advisories and you can't help but wonder if anyone out there is actually taking Tony's first approach seriously (I'll hold off on the OpenBSD preaching for now).
...
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Old

My little PXE experiment has gone mad

Posted 11-25-2012 at 05:10 AM by rocket357 (Musings on technology, philosophy, and life in the corporate world)

Ok, so in my original PXE experiment blog post, I outlined getting everything setup and working for basic pxe boot options (isos that don't require additional work other than memdisk, menu.c32, etc...).

I've taken the liberty of sub-menuing and beautifying the configuration a bit, and I've added two of my favorite live dvds (BackTrack and Linux Mint). Here is my /tftp/pxelinux.cfg/default file now:

Code:
DEFAULT vesamenu.c32
prompt 0

MENU title
...
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