I remember my first colocated server rather fondly. It was a 1U Supermicro that had
been decommissioned from my employer after a few years' service. Although it was too
old and slow for my company, the 800MHz CPU, 1GB RAM and 36GB SCSI storage was
perfect for my needs back in 2005. A friend was kind enough to allow me to colocate
the server at his facility for free. more>>
Ever since the announcement of the Raspberry Pi, sites all across the
Internet have offered lots of interesting and challenging uses for this
exciting device. Although all of those ideas are great, the most obvious
and perhaps least glamorous use for the Raspberry Pi (RPi) is creating
your perfect home server.
The other day in the Linux Journal IRC room (#linuxjournal on Freenode),
I was whining to the channel about no-ip.com deleting my account
without warning. My home IP address hadn't changed in a couple months,
and because there was no update, it appeared abandoned. more>>
New Linux users often ask me "what is the best way to learn about
My advice always comes down to this: install and use Linux (any distribution
will do but something stable works better), and more>>
When I write my column, I try to stick to specific hacks or tips you can
use to make life with Linux a little easier. Usually, I describe with pretty
specific detail how to accomplish a particular task including command-line
and configuration file examples. This time, however, I take a
step off this tried-and-true path of tech tips and instead talk about
more-general, high-level concepts, strategies and, frankly, personal opinions
about systems administration.
This excerpt is from the book, 'DevOps Troubleshooting: Linux Server Best Practices' by Kyle Rankin, published by Pearson/Addison-Wesley Professional, ISBN 0321832043, Nov 2012, Copyright 2013 Pearson Education, Inc. more>>
Poor telnet, it used to be the cool kid on the block. It was the program all
sysadmins turned to when they needed to connect to a remote server. Telnet
just wasn't that good at keeping a secret—all communication went over plain
text—so administrators started switching to SSH for encrypted remote shell
“Change is inevitable in a progressive society. Change is constant” Benjamin Disraeli 1867. Quite a fitting quote if I say so myself. When I started in systems administration back in the mid 90’s everything was done either remoted in from your desktop, a server, or you plugged a terminal into the back of the server. more>>
For Linux users, the command line is a celebrated part of our entire
experience. Unlike other popular operating systems, where the command
line is a scary proposition for all but the most experienced veterans, in
the Linux community, command-line use is encouraged. more>>
I was proudly wearing one of my Salt Stack shirts the other day when my daughter
asked me, "What is Salt Stack?"
I began by explaining the problem it solved.
If you have multiple servers and want to do things to those servers, you
would need to log in to each one and do those things one at a time on each one.
They could be fairly simple tasks like restarting them or checking how long
they have been running. Or, you might want to do more complicated things like
installing software and then configuring that software based upon your own specific
criteria. You also might want to add users and configure permissions for them.