As with everything that contains valuable data, PostgreSQL databases should be backed up regularly. While the procedure is essentially simple, it is important to have a basic understanding of the underlying techniques and assumptions.

Automatically enable HTTPS on your website with EFF's Certbot, deploying Let's Encrypt certificates.

Let’s Encrypt is a free, automated, and open certificate authority utilizing the ACME protocol.

The official client is called Certbot, which allows to request valid X.509 certificates straight from the command line.

Functions should always have a return value. Not just "get"-like functions, but also (perhaps even more important) the "set"-like functions. Scripts may not use this return value in many cases (ie. it's out of their scope to do anything about it), but in more advanced structures or test suites, the return value of a "set" function is very important (ie. "don't load X if Y was not set", or "Did the function correctly refuse to do X in scenario Y").

NAME

Major Hayden - a social nerd
SYNOPSIS

major [--admin systems|database] [--contributor] [--developer] [--educator]
[--leader] [--other]
SUMMARY

I’m a Linux Engineer with skills in database administration, system administration, application development and leadership. I enjoy connecting people with technology solutions that are easy to use, affordable, and sustainable over time. I'm familiar with, and a huge supporter of, the DevOps culture and how to make it work with a large team in a fast paced environment.

Information security has also been an interest of mine. As the Chief Security Architect for Rackspace, I led a team of senior Windows, Linux and networking engineers who were dedicated to increasing security within Rackspace and for our customers. We provided critical security advisement to the business as a whole and we fueled technical security projects that reduced risk, reduced product development cycle time, and increased customer confidence.

I was previously working on the OpenStack project and its integration with Citrix Xenserver and Nicira's networking stack. I also maintained our high-availability clusters, Debian packaging and various system tools and scripts. Our team created a highly automated continuous integration system with Jenkins that allowed us to test and deploy new code much more rapidly than before. 

Use the mogrify program to resize an image, blur, crop, despeckle, dither, draw on, flip, join, re-sample, and much more. This tool is similar to convert except that the original image file is overwritten (unless you change the file suffix with the -format option) with any changes you request. See Command Line Processing for advice on how to structure your mogrify command or see below for sample usages of the command.

Unit testing in Javascript can be tedious and painful, but Testem makes it so easy that you will actually want to write tests.

PhantomJS is a headless WebKit scriptable with a JavaScript API. It has fast and native support for various web standards: DOM handling, CSS selector, JSON, Canvas, and SVG.

Unless you are a MySQL performance tuning expert, it can be enormously challenging and somewhat overwhelming to locate and eliminate MySQL bottlenecks. While many DBAs focus on improving the performance of the queries themselves, this post will focus on the highest-impact non-query items: MySQL Server Performance and OS Performance for MySQL.

Most options can be set using their actual names in the my.cnf.

anonbox.net provides you free, completely anonymous one-time email addresses.

Acquire one in our web interface and use it to receive emails up to the next day. Check for new emails in your browser.

This page contains technical information that might be useful when you're trying to solve a problem.

Paper is a modern freedesktop icon theme whose design is based around the use of bold colours and simple geometric shapes to compose icons. Each icon has been meticulously designed for pixel-perfect viewing.

A Material Design-like theme for GNOME/GTK+ based desktop environments.

A Minecraft Survival Multiplayer Server for Everyone

The zgrep program is available for Linux (and perhaps some Unix too). This will decompress the files and then grep through them.