SysAdmin
Recovering from a Hard Drive Failure
February 2nd, 2009 by Mike Diehl in
Have you ever woke up in the morning and said to yourself, “today is the day that I'm finally going to backup my workstation!” only to find out that you're a day late and about 320Gb short? Well, that's about what happened to me recently, but don't worry, the story has a happy ending. I'm getting ahead of myself though.
Know when your drives are failing, with smartd
December 8th, 2008 by Mike Diehl in
“Ka-chunk... ka-chunk... ka-chunk... tick... tick... tick... Ka-chunk... ka-chunk...” That's just not a sound you ever want to hear coming from a hard drive. It's the sound of a hard drive trying to move it's read/write heads into a position that they don't seem to want to go to or its trying to read a sector that just isn't there anymore.
The Green Penguin: Your Ideas on Heat Recycling
October 29th, 2008 by James Gray in
Recently I asked you for ideas on creative recycling of waste server heat. The inspiration came from a University of Notre Dame project that warms a botanical garden with waste heat. This edition of The Green Penguin covers your own creative ideas.
This idea came from Lorenz in Germany:
Custom checks and notifications for Nagios
September 11th, 2008 by Mike Diehl in
A while back, I wrote an article for Linux Journal's web edition entitled “Howto be a good (and lazy) System Administrator.” A couple astute readers, after reading the article, asked if I was familiar with the Nagios monitoring system, and I am. I've been using Nagios for a few years now.
Creating chroot sftp Jails with Jailkit
June 19th, 2008 by Daniel Bartholomew in
One of the things I both love and hate about my job is getting assigned new projects. They can be about anything and everything. A few months back I was given an assignment to create some chroot jails for a group of customers so that they could securely upload files with sftp. The requirement was that the customers needed to be able to upload file, but in a secure and private way.
How to be a good (and lazy) System Administrator
June 2nd, 2008 by Mike Diehl in
If you're anything like the average System Administrator, you are understaffed, underfunded, and overworked. By now, you've also gotten used to the idea that no one knows you exist until the mail server goes down, then you're suddenly on America's Most Wanted. In this article, I'm also assuming that you have many servers that you are responsible for. I'm also assuming
Wireshark 1.0
May 14th, 2008 by Mitch Frazier in
Its not breaking news, since it happened in March, but Wireshark 1.0 has been released. The news, for me at least, was that Wireshark even existed, never heard of it before. Somebody mentioned it recently when we were trying to diagnose a networking problem.
Make Your Scripts User Friendly with Zenity
May 12th, 2008 by Mike Diehl in
The first time I played with Zenity, I recognized several potential uses for it. While I'm pretty comfortable with interacting with computers with a command line interface, I know many people are not. Zenity creates GUI widgets from a simple command line and can be used from any shell script.
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From the Magazine
July 2009, #183
News Flash: Linux Kernel 3.0 to include an on-the-go Expresso machine interface! Ok, maybe not, but Linux is definitely going mobile, from phones to e-readers. Find out more inside about Android, the Kindle 2, the Western Digital MyBook II, The Bug, and Indamixx (a portable recording studio). And if you've gone mobile and you been wanting more Emacs in your life then check out Conkeror.
To compliment the mobile we've got the stationary: parsing command line options with getopt, checking your Ruby code with metric_fu, and building a secure Squid proxy. How is this stationary you ask? What can we say? It's not. We just wanted to see if anybody actually read this part of the page :) .
All this and more, and all you have to do is get your hot sweaty hands on the latest copy of Linux Journal.








