Patch your webservers for the SSLv3 POODLE vulnerability (CVE­-2014­-3566)

First, read this: CVE­-2014­-3566. Read more ›

Posted in Devops, Security

You Need Passion

(This article was written in May 2012, but for some reason never got published. Better late than never, I assume)

I read, with great interest, Davy Kesten's article on "Just do it". It's to-the-point and he makes for very compelling arguments, which to most extent I agree.

There is just one quote that bothered me in that article. Read more ›

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Posted in Personal

Compress a PDF file on Linux via the CLI

If you're processing large PDF files, you may want to optimize the filesize. Here's what I found to be working. These tools all require Ghostscript. Read more ›

Posted in Devops

Sysdig CLI examples

Here are some SysDig examples for your CLI. Looking for an easy way to install SysDig on your servers? Check out my puppet-sysdig module if you're a Puppet user. Read more ›

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Posted in Devops

HHVM versus PHP-FPM 5.4 vs PHP-FPM 5.5: performance comparison

If you haven't heard of HHVM in the last 2 years, I recommend checking out the website. I won't go into details here. I've even mentioned it briefly on this blog in 2010.

But I was curious: given a stock PHP-FPM 5.4 with APC or 5.5 with OpCache enabled, how much faster would HHVM 3.1.0 be? I decided to load a working Drupal site into a Vagrant VM and do some benchmarks. It's a stock Drupal with Memcached configured, but Drupal's page cache disabled. After all, I want to test PHP's performance (PHP parsing of modules & execution etc.), not serving cached pages. I want it load and execute every module, on every pageload. Read more ›

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Posted in php