Posts

During one of my regular trips to reddit, I stumbled upon an amazingly helpful Linux I/O stack diagram:

Amid all of the Docker buzz at the Red Hat Summit, Project Atomic was launched.

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.

As I wait in the airport to fly back home from this year’s Red Hat Summit, I’m thinking back over the many conversations I had over breakfast, over lunch, and during the events.

The openssl heartbleed bug has made the rounds today and there are two new testing builds or openssl out for Fedora 19 and 20:

Docker is a hot topic in the Linux world at the moment and I decided to try out the new trusted build process.

I’ve received some very sophisticated phishing emails lately and I was showing some of them to my coworkers.

I stumbled upon this video earlier today via Tripwire’s Twitter feed:

After upgrading my Fedora 20 Xen hypervisor to virt-manager 1.

I’ve written about installing Xen on Fedora 19 and earlier versions on this blog before.

I figured that the Puppy Linux and icanhazip.

Many of the non-technical posts on the blog are inspired by the comments of others.

I’ve made posts about the DevOps Weekly mailing list before.

I was doing some testing with apachebench and received some peculiar results:

My SANS classmates were learning how to set and recognize file permissions on a Linux server and we realized it would be helpful to display the octal value of the permissions next to the normal rwx display.

Keeping an eye out for the DevOps Weekly email is something I’ve enjoyed since it started at the end of 2010.

Going to the dark side.

In my previous post about installing Fedora via PXE, I forgot to mention a big time saver for the installation.

I stumbled upon a helpful guide to securing an apache server via Reddit’s /r/netsec subreddit.

This post has been a bit delayed, but I want to follow up on the post I wrote last month about moving from OS X to Linux at work.

If you run bwm-ng and you’ve run a yum upgrade lately on Fedora 19, you have probably seen this:

I spent two days last week in a class called “Accounting and Finance for Non-Financial Managers” at UT Austin’s Texas Executive Education program.

The thought of using Linux as a manager in a highly Windows- and Mac-centric corporate environment isn’t something to be taken lightly.

The X1 Carbon’s touchpad has been my nemesis in Linux for quite some time because of its high sensitivity.

Outside of the RHCA exams, I haven’t configured a PXE system for my personal needs.

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

Pairing virt-manager with KVM makes booting new VM’s pretty darned easy.

The confined user support in SELinux is handy for ensuring that users aren’t able to do something that they shouldn’t.

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).

It’s been a little while since I last posted about installing Xen on Fedora, so I figured that Fedora 19’s beta release was as good a time as any to write a new post.

While rolling through my RSS feeds, I found a great presentation by David Quigley titled “Demystifying SELinux”.

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.

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.

After many discussions with fellow Linux users, I’ve come to realize that most seem to disable SELinux rather than understand why it’s denying access.

I’m in the process of moving back to a postfix/dovecot setup for hosting my own mail and I wanted a way to remove the more sensitive email headers that are normally generated when I send mail.

The latest versions of virt-manager don’t release the mouse pointer when you’re doing X forwarding to a machine running OS X.

I dragged out an old Aopen MP57-D tonight that was just sitting in the closet and decided to load up kvm on Fedora 18.

It’s no secret that Google Reader is a popular way to keep up with your RSS feeds, but it’s getting shelved later this year.

This year’s RSA Conference was full of very useful content but the most useful session for me was a peer to peer discussion regarding BYOD on mobile devices.

I’ve been a big fan of the GPGTools suite for Mac for quite a while but I discovered some neat features when right-clicking on a file in Finder today.

My new role has caused me to look at information security in a different way.

Although the X1 Carbon has a much better looking display than the T430s, it still looked a bit washed out when I compared it to other monitors right next to it.

UPDATE: I’ve found a better configuration via another X1 Carbon user and there’s a new post with all the details.

Ever since I saw QuickSilver for the first time, I’ve been hooked on quick application launchers.

Python’s virtual environment capability is extremely handy for situations where you don’t want the required modules for a particular python project to get mixed up with your system-wide installed modules.

The biggest gripe I have about my Android phone is that the Bluetooth connectivity is very finicky with my car.