SysAdmin

Linux is Everywhere...So where do we go from here?

We all know that Linux has changed the world...in small ways and large. One of the ways it's changed the world is by changing the way work gets done in corporations, big and small, around the world. As with the computer itself, the effects of ever-advancing Linux seem evolutionary and "slow & steady" from day to day. more>>

Sponsored by: Red Hat

The Growing Role of UEFI Secure Boot in Linux Distributions

With the increasing prevalence of open-source implementations and the expansion of personal computing device usage to include mobile and non-PC devices as well as traditional desktops and laptops, combating attacks and security obstacles against malware is a growing priority for a broad community of vendors, developers and end users. more>>

Docker: Lightweight Linux Containers for Consistent Development and Deployment

Take on "dependency hell" with Docker containers, the lightweight and nimble cousin of VMs. Learn how Docker makes applications portable and isolated by packaging them in containers based on LXC technology. more>>

Debugging Web Sites

I know, I'm in the middle of a series of columns about how to work with ImageMagick on the command line, but when other things arise, well, I imagine that a lot of you are somehow involved in the management of servers or systems, so you all understand firefighting. more>>

DNSSEC Part II: the Implementation

This article is the second in a series on DNSSEC. In the first one, I gave a general overview of DNSSEC concepts to lay the foundation for this article, which discusses how to enable DNSSEC for a zone using BIND. more>>

LVM, Demystified

I've been a sysadmin for a long time, and part of being a sysadmin is doing more than is humanly possible. Sometimes that means writing wicked cool scripts, sometimes it means working late, and sometimes it means learning to say no. Unfortunately, it also sometimes means cutting corners. I confess, I've been "that guy" more than once. A good example is SELinux. more>>

Solid-State Drives: Get One Already!

I've been building computers since the 1990s, so I've seen a lot of new technologies work their way into the mainstream. Most were the steady, incremental improvements predicted by Moore's law, but others were game-changers, innovations that really rocketed performance forward in a surprising way. more>>

New Storage Solution is Music to the Ears of Fast-Growing Digital Music Company

Digital music distribution and technology company INgrooves is growing rapidly, signing contract after contract to distribute music for independent labels and artists. more>>

Sponsored by: Silicon Mechanics

March 2014 Issue of Linux Journal: 20 Years of Linux Journal

Personally, I thought it was strange for everyone to make a big deal about such an arbitrary number of days. more>>

DNSSEC Part I: the Concepts

Like IPv6, DNSSEC is one of those great forward-looking protocols that unfortunately hasn't seen wide adoption yet. Before I implemented it myself, I could see why. Although some people think BIND itself is difficult to set up, DNSSEC adds an extra layer of keys, key management and a slew of additional DNS records. more>>

SIDUS—the Solution for Extreme Deduplication of an Operating System

SIDUS (Single-Instance Distributing Universal System) was developed at Centre Blaise Pascal (Ecole normale supérieure de Lyon, Lyon, France), where one administrator alone is in charge of 180 stations. Emmanuel Quemener started SIDUS in February 2010, and he significantly cut his workload for administering this park of stations. SIDUS is now in use at the supercomputing centre PSM more>>

Protect Your Ports with a Reverse Proxy

In a previous article, I discussed Apache Tomcat, which is the ideal way to run Java applications from your server. I explained that you can run those apps from Tomcat's default 8080 port, or you can configure Tomcat to use port 80. But, what if you want to run a traditional Web server and host Java apps on port 80? The answer is to run a reverse proxy. more>>

Two Pi R

Although many people are excited about the hardware-hacking possibilities with the Raspberry Pi, one of the things that interests me most is the fact that it is essentially a small low-power Linux server I can use to replace other Linux servers I already have around the house. more>>

Readers' Choice Awards 2013

This year's Reader's Choice issue was truly fun to put together. No, not just because you do all the work (voting), but because it's great to get a feel for what our community is buzzing about. Based on your feedback, we've given you all the data again this year, with percentages and rankings, plus we tried to include as many of your less-popular responses as possible. more>>

Advanced Hard Drive Caching Techniques

With the introduction of the solid-state Flash drive, performance came to the forefront for data storage technologies. Prior to that, software developers and server administrators needed to devise methods for which they could increase I/O throughput to storage, most of which resulted in low capacity caching to random access memory (RAM) or a RAM drive. more>>

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