Category: tech

Ansible-cmdb v1.17: Generate a host overview of Ansible facts.

I’ve just released ansible-cmdb v1.17. Ansible-cmdb takes the output of Ansible’s fact gathering and converts it into a static HTML overview page containing system configuration information. It supports multiple templates (fancy html, txt, markdown, json and sql) and extending information gathered by Ansible with custom data. This release includes the following bugfixes;: A bug that caused whitespace to be […]

Terrible Virtualbox disk performance

For a while I’ve noticed that Virtualbox has terrible performance when install Debian / Ubuntu packages. A little top, iotop and atop research later, and it turns out the culprit is the disk I/O, which is just ludicrously slow. The cause is the fact that Virtualbox doesn’t have “Use host IO cache” turned on by […]

Interesting links: October 4th 2015

Here’s a bunch of links I found interesting in the last few weeks: List of Python Report Generation Tools jstat – Java Virtual Machine Statistics Monitoring Tool How To Protect WordPress with Fail2Ban on Ubuntu 14.04 | DigitalOcean Shiny Turn your analyses into interactive web applicationsNo HTML, CSS, or JavaScript knowledge required logtail(8) – Linux […]

Minimalising the Gmail interface

Since a few months I’ve been using the Gmail web interface as my main email client. So far my experience has been pretty good, although it took some getting used to. I’m running it in a separate window instead of my main browser. For this I’m using it as an Application in Chrome (Open Gmail in […]

POODLE: SSLv3 bug summary

Yet Another SSL bug: This time a problem with SSLv3. Most browsers and web servers support SSLv3. Many don’t use it by default; instead opting for higher versions of SSL such as TLS v1.0+. The problem is that attackers can force a downgrade of the negotiated protocol, which will result in the SSLv3 protocol being used […]

Quick-n-dirty HAR (HTTP Archive) viewer

HAR, HTTP Archive, is a JSON-encoded dump of a list of requests and their associated headers, bodies, etc. Here’s a partial example containing a single request: { “startedDateTime”: “2013-09-16T18:02:04.741Z”, “time”: 51, “request”: { “method”: “GET”, “url”: “http://electricmonk.nl/”, “httpVersion”: “HTTP/1.1”, “headers”: [], “queryString”: [], “cookies”: [], “headersSize”: 38, “bodySize”: 0 }, “response”: { “status”: 301, “statusText”: […]

bbcloner: create mirrors of your public and private Bitbucket Git repositories

  I wrote a small tool that assists in creating mirrors of your public and private Bitbucket Git repositories and wikis. It also synchronizes already existing mirrors. Initial mirror setup requires that you manually enter your username/password. Subsequent synchronization of mirrors is done using Deployment Keys. You can download a tar.gz, a Debian/Ubuntu package or clone […]

Quick Introduction to LDAP Basics

Every now and then I have to work on something that involves LDAP, and every time I seem to have completely forgotten how it works. So I’m putting this here for future me: a quick introduction to LDAP basics. Remember, future me (and anyone else reading this), at the time of writing you are by […]

Subversion svn:ignore propery doesn’t (seem) to work? [FIXED]

Say you’re trying to set the “ignore” property on something in a subversion checkout like this: svn propset svn:ignore “foo.pyc” . Next you do a svn status: M foo.pyc It seems it isn’t working. In order to fix this, you must remember to first: Remove the file from subversion and commit svn update all the […]

Stop Joomla (v2.5) from logging you out of the administrator interface

The Joomla v2.5 backend administrator interface by default will log you out after you’ve been inactive for 24 minutes (some on the internet claim it’s 15, others 30 minutes. For me, it seems it was 24). This is quite annoying, and usually easily fixed in most PHP applications by changing the session timeout. Joomla also […]

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