SysAdmin

Let's Automate Let's Encrypt

HTTPS is a small island of security in this insecure world, and in this day and age, there is absolutely no reason not to have it on every Web site you host. Up until last year, there was just a single last excuse: purchasing certificates was kind of pricey. more>>

Installing and Running a Headless Virtualization Server

In recent years, hardware virtualization has become commonplace in the computing industry and more available to end users. The idea behind it is a noble one. Why invest in allocating more server hardware and not utilize it to its full potential, when instead you can consolidate it all onto one or a few servers and share their resources? more>>

New Version of GParted

Back in my Windows days, disk maintenance was a task that filled me with dread. I remember the endless hours spent scanning, defragmenting and scanning again. more>>

SUSE LLC's SUSE Manager

SUSE Manager is a open-source IT management solution with a centralized console for managing multiple Linux distributions, hardware platforms (x86, IBM Power Systems and z Systems), more>>

Managing Linux Using Puppet

At some point, you probably have installed or configured a piece of software on a server or desktop PC. Since you read Linux Journal, you've probably done a lot of this, as well as developed a range of glue shell scripts, Perl snippets and cron jobs. more>>

Profiles and RC Files

I love Linux, and if you're reading this, chances are you do too. To be honest though, some aspects of the Linux environment are confusing. Near the top of the list for me is the profile system. more>>

Understanding Ceph and Its Place in the Market

Last month, the Ceph community released its first set of bug fixes to the 10.2 Jewel release with version 10.2.1. more>>

OpenSwitch Finds a New Home

OpenSwitch has joined the Linux Foundation's stable of networking projects. This is a significant step. It means the network operating system's development will be driven by community needs, instead of the needs of few private companies. more>>

ZFS: Finding Its Way to a Linux Near You?

It seems like only yesterday that I read Jeff Bonwick's blog entry "ZFS: The Last Word in Filesystems". It was Halloween of 2005 that ZFS was fully integrated into Sun Microsystem's Solaris, and the filesystem was very well received. For the readers not familiar with ZFS, it is a combined all-purpose filesystem and volume manager. more>>

Back to Backups

In my Open-Source Classroom column a few months ago, I talked about backups and got some really fascinating feedback. Here are a few of the ideas from readers worth checking into: more>>

ServersCheck's Thermal Imaging Camera Sensor

Monitoring data centers with sensors over conventional temperature probes has huge advantages, says facilities monitoring specialist ServersCheck. more>>

Petros Koutoupis' RapidDisk

RapidDisk is an open-source and enhanced Linux RAM drive solution led by BDFL Petros Koutoupis (who also writes for Linux Journal) that allows users to create, resize a more>>

Varnish Software's Varnish Massive Storage Engine

The headlining feature of the new Varnish Massive Storage Engine (MSE) 2.0 from Varnish Software is cache persistence. more>>

Transferring Conserver Logs to Elasticsearch

If your organization manages Linux, AIX, HP-UX or Solaris servers in-house, chances are your system administrators at least occasionally need low-level access to those devices. Typically, administrators use some kind of serial console—for example, traditional serial port, Serial-over-LAN or Intelligent Platform Management Interface (IPMI). more>>

What's in the Box? Interrogate Your Linux Machine's Hardware

I recently had a problem trying to install the NVIDIA driver for my machine. It seemed the latest driver had stopped supporting my graphics card, and after updating my kernel, I was out of a driver. The question, obviously, was "which card did I have?" But, I didn't remember. more>>

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