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Introduction to Linux - A Hands on Guide
This guide was created as an overview of the Linux Operating System, geared toward new users as an exploration tour and getting started guide, with exercises at the end of each chapter.
For more advanced trainees it can be a desktop reference, and a collection of the base knowledge needed to proceed with system and network administration. This book contains many real life examples derived from the author's experience as a Linux system and network administrator, trainer and consultant. They hope these examples will help you to get a better understanding of the Linux system and that you feel encouraged to try out things on your own.
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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.
Posted 09-18-2013 at 08:57 PM byrocket357 (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,...
Posted 07-24-2013 at 06:26 PM byrocket357 (Musings on technology, philosophy, and life in the corporate world)
Last night my wife complained to me that facebook was taking forever to load. I figured it was just a hiccup somewhere between facebook and our home network, so I waited a bit to see.
An hour or so later, she was getting impatient, so I fired up a tcpdump session on the firewall and watched her desktop exchange a pretty funny set of packets (well, you had to be there, I suppose), loaded with PUSH, URG, and FIN packets back and forth between her desktop and facebook. I laughed and...
Posted 06-16-2013 at 08:31 PM byrocket357 (Musings on technology, philosophy, and life in the corporate world)
So, one of my big fears on my home network is a virus outbreak. Granted, my wife is an incredibly paranoid web surfer, and in the 12 years we've been together there has been just one virus issue (and that was after our niece used her computer to surf some "ooh, I'm a vampire...I sparkle!" type of social sites). Sigh.
So, why the rekindled fear? My daughter is old enough to start using the internet, and she hasn't had time to build up the same paranoia that her mother...
Posted 06-05-2013 at 09:30 PM byrocket357 (Musings on technology, philosophy, and life in the corporate world)
Updated 06-05-2013 at 11:18 PM byrocket357
Long story short:
Me. Rackspace cloud. Start timer.
Spin up Ubuntu 13.04 cloud server (512 MB size is perfect for this), start downloading Ventrilo Server for Linux. Edit Cloud DNS in the Rackspace mycloud portal to add A/CNAME/PTR after the assigned ip's show up...
A few moments later, login to server. Change root password. scp Ventrilo installer to server. Install the Rackspace cloud monitoring agent.