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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.
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Old

Starting a new chapter

Posted 03-06-2014 at 08:40 PM by rocket357 (Musings on technology, philosophy, and life in the corporate world)

The time has come for me to bid farewell to San Antonio. I accepted a position at Amazon's Seattle office so I could get my wife closer to her aging Dad (who we haven't seen since our wedding over a decade ago).

It's a real bittersweet time for me. My team at Rackspace is (and will likely be for a very long time) the coolest group of people I've ever had the pleasure of working with...and on top of that, I had the best customers a Linux tech could ask for. Sure, the occasional...
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Old

home network vlan fun!

Posted 12-23-2013 at 03:24 PM by rocket357 (Musings on technology, philosophy, and life in the corporate world)
Updated 12-23-2013 at 03:37 PM by rocket357

I recently posted about carving out /30 vlans for the Windows machines on my network at home. It's been working well, so I decided to carve up the remaining network to provide some layer of separation between devices.

My wife picked up a Buffalo N600 dual-band wireless access point for me recently. I have dd-wrt running on my old AP (because open-wrt won't run on it), so I figured I'd flash the Buffalo with openwrt and roll with it. I configured both 2.4 and 5.0 GHz bands with...
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Old

iptables revisited

Posted 12-05-2013 at 04:05 PM by rocket357 (Musings on technology, philosophy, and life in the corporate world)

I spent a bit of time revamping my iptables rules on a public torrent/voip server of mine, so I figured I would dump them here (sanitized) for future reference:

Code:
root@dfw:~# iptables -nvL
Chain INPUT (policy DROP 0 packets, 0 bytes)
 pkts bytes target     prot opt in     out     source               destination         
   47  1896 LOG-DROP   all  --  *      *       0.0.0.0/0            0.0.0.0/0            ctstate INVALID /* SCANS AND SUCH? */
44350 6962K
...
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Old

Testing a new toy

Posted 11-30-2013 at 01:24 AM by rocket357 (Musings on technology, philosophy, and life in the corporate world)

The other day while running a maintenance for a customer in which we had settled on communicating via IM, I noted that typing on my android was a pain. Sure, the on screen keyboard is ok if I'm texting a quick message or typing out a short explanation of the final deal, but going from my laptop to the android and back for each step was getting old...so I figured it was time to grab a bluetooth keyboard and wire it up to a Galaxy tablet and test it out...only my wife beat me to it and picked one...
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Old

RIP: bad value: NULL

Posted 09-18-2013 at 09:57 PM by rocket357 (Musings on technology, philosophy, and life in the corporate world)

Spent a few days debugging what I thought was a bizarre kernel bug on a RHEL 6.3 box. We had crash utilities installed and I'd gotten incredibly comfortable with analyzing kernel crash dumps. I can also say that I'm intimately familiar with a few features of the Linux kernel that I didn't even know existed before.

If you know much about kernel debugging, you probably already know the fix (due to the subject line). See, when you analyze a kernel crash dump, you get certain information,...
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