Articles by Scott Hebert

  1. [OS X] Disable IPv6 Address Privacy

    Posted on in Networking

    For those that are really into privacy, the Privacy Extensions defined in RFC 4941 are a really good thing. This extension circumvents SLAAC and has the result of randomizing your IPv6 address. Like I said, if privacy is a big deal for you, this is definitely something you want enabled …

  2. What's Next? Using Chrome OS and Crouton For Work

    Posted on in System Administration

    It is well-documented that I am a heavy Google user. I use Gmail and Google Docs for just about everything. Additionally, I have used an Android phone since I got the HTC Dream (AKA T-Mobile G1) when it first came out.

    However, I have been using OS X full-time since …

  3. Redis: Better Session Storage for Magento

    Posted on in System Administration

    Out of the box, Magento has four methods available for storing session data: filesystem, database, memcached, and tmpfs. The default method is to store session information in the filesystem. I believe that storing sessions in Redis is actually superior to all of the aforementioned methods. Each of the four default …

  4. Using Pelican's article.summary

    Posted on in Programming

    I'm using Jinja2 templates with my new Pelican-based articles. If you have Django experience, you'll feel right at home using Jinja2 templates. I decided early on that I wanted to create my own theme from scratch and keep it as basic as possible. (In fact, 'basic' is the name …

  5. Getting Started With Pelican

    Posted on in Software

    I've been using WordPress on this site since 2007. After all this time, I've decided I want to try something new. So, I've decided to go in a completely different direction and start serving static content. There are three things driving my decision to change:

    • The existing site is really …
  6. El Capitan Leads to More DNS Woes

    Posted on in System Administration

    For whatever reason, Apple really likes messing with how I use DNS.

    I've written many, many, many times about having to modify OS X's DNS functionality to append search domains when a hostname includes a dot. Every single time I upgrade, this change is broken.

    Previously, the workaround had been …

  7. Agreeing to the Xcode/iOS license...

    Posted on in Programming

    Sometimes this pops up when you least expect it:

    Agreeing to the Xcode/iOS license requires admin privileges, please re-run as root via sudo.
    

    This morning, I went to refresh one of my git repo's for work, and make spit that out. What the heck happened last night? Anyway, the …

  8. nginx: Blocking Access to /xmlrpc.php

    Posted on in System Administration

    I recently ran into an issue on a Wordpress site running behind an nginx web server. The site was frequently being attacked by a botnet hitting /xmlrpc.php so rapidly, it would eventually force the FastCGI processes behind nginx to consume all available CPU. Naturally, this would cause all legitimate …

  9. Goodbye, discoveryd. Hello again, mDNSResponder.

    Posted on in System Administration

    Great!

    Once again, Apple has made a change in how DNS is handled in Mac OS X. Originally, Yosemite (10.10) had replaced mDNSResponder with discoveryd. This meant that all of those who had made a change to force mDNSResponder to always append search domains to DNS lookups had to …

  10. Career Advice: Becoming a System Administrator

    Posted on in IT Management

    Recently, I got an email that went something like this:

    I have completed a BTech in Electronics and Communication. Now, I am working as a desktop engineer. How can I move my career to the network / server side?

    Career moves are hard for everyone. Personally, I've been thinking about making …

  11. Why Isn't tmpreaper Working?

    Posted on in System Administration

    If you have a directory that you want to keep clean, tmpreaper is a great way to remove files based on how old they are. The other day, I had a directory that looked like this:

    x@x:~/dump$ ls -l
    -rw-r--r-- 1 x x 212268169 Mar 15 01:02 …

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