DevConf.CZ 2019 wrapped up last weekend and it was a great event packed with lots of knowledgeable speakers, an engaging hallway track, and delicious food.
I’m at the 2018 Red Hat Summit this week in San Francisco and I am enjoying the interactions between developers, executives, vendors, and engineers.
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The latest release of the Red Hat Enterprise Linux Security Technical Implementation Guide (STIG) was published last week.
DISA’s final release of the Red Hat Enterprise Linux (RHEL) 7 Security Technical Implementation Guide (STIG) came out a few weeks ago and it has plenty of improvements and changes.
The 2016 Red Hat Summit is underway in San Francisco this week and I delivered a talk with Robyn Bergeron earlier today.
The Red Hat Summit starts this week in San Francisco, and a few folks asked me about the sessions that they shouldn’t miss.
With the upcoming Red Hat Summit 2016 in San Francisco almost upon us, I decided to update the old SELinux shirts with two new designs:
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It seems like there’s a new way to run containers every week.
GNOME 3 generally works well for me but it has some quirks.
I’ve been getting involved with the Fedora Security Team lately and we’re working as a group to crush security bugs that affect Fedora, CentOS (via EPEL) and Red Hat Enterprise Linux (via EPEL).
When you upgrade packages on Red Hat, CentOS and Fedora systems, the newer package replaces the older package.
There are plenty of guides out there for making ethernet bridges in Linux to support virtual machines using built-in network scripts or NetworkManager.
One of the first tools I learned about after working with Red Hat was sysstat.
Managing firewall rules with iptables can be tricky at times.
Working with the Fedora community is something I really enjoy in my spare time and I was baffled by a article I saw in Infoworld earlier last week.
My work at Rackspace has involved working with a bunch of Debian chroots lately.
After having some interesting discussions last week around KVM and Xen performance improvements over the past years, I decided to do a little research on my own.
Dell provides the racadm software on Linux that allows you to manage Dell hardware from a Linux system.
I’m in the process of trying Fedora 20 on my retina MacBook and I ran into a peculiar issue with Chrome.
Getting started with LXC is a bit awkward and I’ve assembled this guide for anyone who wants to begin experimenting with LXC containers in Fedora 20.
I’d like to congratulate the CentOS project on their big news yesterday.
I was shocked to see Robyn Bergeron’s email today about Seth Vidal’s passing.
Most of my websites run on a pair of Supermicro servers that I purchased from Silicon Mechanics (and I can’t say enough good things about them and their servers).
I’ve converted one of my KVM hypervisors from CentOS 6 to Fedora 18 and now comes the task of migrating my virtual machines off of my single remaining CentOS 6 hypervisor.
This post is a quick one but I wanted to share it since I taught it to someone new today.
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Changing my ssh port from the default port (22) has been one of my standard processes for quite some time when I build new servers or virtual machines.
A coworker heard me grumbling about Linux system administration standards and recommended that I review the CIS Security Benchmarks.
The wheel group exists for a critical purpose and Wikipedia has a concise definition:
This article appeared in SC Magazine and I’ve posted it here as well.
I’m still quite pleased with my Samsung Galaxy SIII but there are some finicky Bluetooth issues with my car that I simply can’t figure out.
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Thursday has felt like the busiest, most jam-packed day of the week.
Wednesday was action-packed with dramatic keynotes and great sessions.
I’m on my way to my first Red Hat Summit and I’m really eager to learn some new things, meet new people, and share my experiences with others.
I was glad to see the Fedora 17 Final is declared GOLD!
I originally wrote this post for the Rackspace Blog but I decided to post it here in case some of my readers might have missed it.
A fellow Racker showed me httpry about five years ago and I’ve had in my toolbox as a handy way to watch HTTP traffic.
I originally wrote this post for the Rackspace Blog but I’ve posted it here just in case anyone following my blog’s feed finds it useful.
The grades came back last Friday and I’ve passed the last exam in the requirements to become a Red Hat Certified Architect (RHCA).
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As promised in my earlier post entitled Kerberos for haters, I’ve assembled the simplest possible guide to get Kerberos up an running on two CentOS 5 servers.
I’ll be the first one to admit that Kerberos drives me a little insane.
I used to be one of those folks who would install Fedora, CentOS, Scientific Linux, or Red Hat and disable SELinux during the installation.
When you install Scientific Linux, it will keep you on the same point release that you installed.
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Before we get started, I really ought to drop this here:
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SELinux isn’t a technology that’s easy to tackle for newcomers.
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I’m using SELinux more often now on my Fedora 15 installations and I came up against a peculiar issue today on a new server.
If you haven’t noticed already, full Xen dom0 support was added in the Linux 3.
Some might call me paranoid, but I get nervous when my package manager automatically removes a kernel.
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As promised in one of my previous posts about dual-primary DRBD and OCFS2, I’ve compiled a step-by-step guide for Fedora.
While I’m not the biggest proponent of certifications, I still think you can learn some valuable information while studying for some certification tests.