SysAdmin

Dynamic DNS—an Object Lesson in Problem Solving

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>>

Home, My Backup Data Center

New Linux users often ask me "what is the best way to learn about Linux?" My advice always comes down to this: install and use Linux (any distribution will do but something stable works better), and more>>

Fabric: a System Administrator's Best Friend

Do you routinely make changes to more than a dozen machines at a time? Read this article to find out about a tool to make that task much easier. more>>

How to Deploy A Server

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. more>>

Book Excerpt: DevOps Troubleshooting: Linux Server Best Practices

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>>

Troubleshooting with Telnet

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 sessions. more>>

Android System Administration Utilities

“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>>

February 2013 Issue of Linux Journal: System Administration

Digital Duct Tape

I've had enough system administration jobs to know that companies tend to take drastically different approaches to how they handle technology. more>>

Python Scripts as a Replacement for Bash Utility Scripts

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>>

Getting Started with Salt Stack-the Other Configuration Management System Built with Python

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. more>>

Rsync, It's GRRRRaphical!

Every year for our Readers' Choice survey, the venerable tool rsync gets votes for favorite backup tool. That never surprises us, because every time I need to copy a group of files and folders, rsync is the tool I use by default. more>>

Introducing Vagrant

Have you ever heard the following? "Welcome to the team! Here's a list of 15 applications to install, the instructions are in the team room, somewhere. more>>

Ubuntu's New DNS: Unknown Host

If you're the type of person who installs Ubuntu's server edition, you're also likely the sort of person who knows how to configure network settings. For most distributions, especially those based on Debian, the process is a bit strange, but familiar. more>>

The Sysadmin's Toolbox: iftop

Who's using up all the bandwidth, and what are they doing? Use iftop to find out. more>>

Stop Waiting For DNS!

I am an impulse domain buyer. I tend to purchase silly names for simple sites that only serve the purpose of an inside joke. The thing about impulse-buying a domain is that DNS propagation generally takes a day or so, and setting up a Web site with a virtual hostname can be delayed while you wait for your Web site address to go "live". more>>

Syndicate content
Webinar
One Click, Universal Protection: Implementing Centralized Security Policies on Linux Systems

As Linux continues to play an ever increasing role in corporate data centers and institutions, ensuring the integrity and protection of these systems must be a priority. With 60% of the world's websites and an increasing share of organization's mission-critical workloads running on Linux, failing to stop malware and other advanced threats on Linux can increasingly impact an organization's reputation and bottom line.

Learn More

Sponsored by Bit9

Webinar
Linux Backup and Recovery Webinar

Most companies incorporate backup procedures for critical data, which can be restored quickly if a loss occurs. However, fewer companies are prepared for catastrophic system failures, in which they lose all data, the entire operating system, applications, settings, patches and more, reducing their system(s) to “bare metal.” After all, before data can be restored to a system, there must be a system to restore it to.

In this one hour webinar, learn how to enhance your existing backup strategies for better disaster recovery preparedness using Storix System Backup Administrator (SBAdmin), a highly flexible bare-metal recovery solution for UNIX and Linux systems.

Learn More

Sponsored by Storix