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Red Hat

2019


DevConf.CZ 2019 Recap

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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.

2018


How to thrive at a technical conference

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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.

2017


RHEL 7 STIG v1 updates for openstack-ansible-security

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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.

2016


2015


Improving LXC template security

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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).

Keep old kernels with yum and dnf

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When you upgrade packages on Red Hat, CentOS and Fedora systems, the newer package replaces the older package.

2014


Install sysstat on Fedora 21

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One of the first tools I learned about after working with Red Hat was sysstat.

Text missing in chrome on Linux

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I’m in the process of trying Fedora 20 on my retina MacBook and I ran into a peculiar issue with Chrome.

2013


A humble farewell to Seth Vidal

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I was shocked to see Robyn Bergeron’s email today about Seth Vidal’s passing.

Limit access to the su command

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The wheel group exists for a critical purpose and Wikipedia has a concise definition:

2012


Log Android events remotely to a syslog server

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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.

New Fedora and EPEL package: httpry

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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.

Preparing for Red Hat Exams

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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.

Kerberos for haters

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I’ll be the first one to admit that Kerberos drives me a little insane.

Getting started with SELinux

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I used to be one of those folks who would install Fedora, CentOS, Scientific Linux, or Red Hat and disable SELinux during the installation.

2011


Dual-primary DRBD with OCFS2

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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.

2010


Tap into your Linux system with SystemTap

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One of the most interesting topics I’ve seen so far during my RHCA training at Rackspace this week is SystemTap.

2009


2008


2007


Installing package groups with up2date

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A few days ago, I began to install a group of packages with up2date, and the person next to me was surprised that up2date even had this functionality.

rpmdb: Lock table is out of available locker entries

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If up2date throws some horrible Python errors and rpm says “rpmdb: Lock table is out of available locker entries”, you can restore your system to normality with the following: