Dec 122014
 
Remote Reference Counting in Rapicorn

In the last months I finally completed and merged a long standing debt into Rapicorn. Ever since the Rapicorn GUI layout & rendering thread got separated from the main application (user) thread, referencing widgets (from the application via the C++ binding or the Python binding) worked mostly due to luck. I investigated and researched several […]

Oct 222014
 
Apache SSLCipherSuite without POODLE

In my previous post Forward Secrecy Encryption for Apache, I’ve described an Apache SSLCipherSuite setup to support forward secrecy which allowed TLS 1.0 and up, avoided SSLv2 but included SSLv3. With the new PODDLE attack (Padding Oracle On Downgraded Legacy Encryption), SSLv3 (and earlier versions) should generally be avoided. Which means the cipher configurations discussed […]

Aug 052014
 
C++ Month Name Hashing

In a time critical section of a recent project, I came across having to optimize the conversion of three digit US month abbreviations (as commonly found in log files) to integers in C++. That is, for “Jan” yield 1, for “Feb” yield 2, etc, for “Dec” yield 12. In C++ the simplest implementation probably looks […]

Apr 152014
 
Forward Secrecy Encryption for Apache

The basic need to encrypt digital communication seems to be becoming common sense lately. It probably results from increased public awareness about the number of parties involved in providing the systems required (ISPs, backbone providers, carriers, sysadmins) and the number of parties these days taking an interest in digital communications and activities (advertisers, criminals, state authorities, […]

Nov 132013
 
Tobin - Statistics from Webserver Logs

Reblogged from the Lanedo GmbH blog: During recent weeks, I’ve started to create a new tool “Tobin” to generate website statistics for a number of sites I’m administrating or helping with. I’ve used programs like Webalizer, Visitors, Google Analytics and others for a long time, but there’re some correlations and relationships hidden in web server […]

Sep 022013
 
Open Source In Business at Campus Party Europe

Next Friday I’ll be giving a talk on Open Source In Business at the Campus Party Europe conference in the O2 arena, London. The talk is part of the Free Software Track at 14:00 on the Archimedes stage. I’m there the entire week and will be happy to meet up, so feel free to drop me a line in […]

Aug 062013
 
Should We Include Documentation Builds In Tarballs?

Reblogged from the Lanedo GmbH blog: Would you want to invest hours or days into automake logic without a use case? For two of the last software releases I did, I was facing this question. Let me give a bit of background. Recently the documentation generation for Beast and Rapicorn fully switched over to Doxygen. […]