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.
Sometimes I can’t help myself.
It’s been three long years since the last MySQLTuner release but you’ll now find version 1.
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.
You’ll find version 0.
I’d like to congratulate the CentOS project on their big news yesterday.
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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.
Want to work for a company that finds new approaches to traditional IT problems?
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I had the pleasure of speaking to ISACA’s San Antonio chapter today about cloud security.
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 figured it would only be a matter of time until people used icanhazip.
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.
There’s a drbd-8.
Outside of the RHCA exams, I haven’t configured a PXE system for my personal needs.
After my podcast interview at the 2013 Red Hat Summit, Dan Walsh posted a photo of himself in the SELinux shirt that I gave him at the Summit:
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.
David Egts and Gunnar Hellekson were kind enough to invite me to participate in their Dave and Gunnar Show podcast during the 2013 Red Hat Summit.
The 2013 Red Hat Summit was my second one and I enjoyed it more than last year.
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.
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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.
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.
Fedora 17 DRBD users should see version 8.
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.