Category Archives: Linux

Qt C++: Threaded Communication with Artema Hybrid on Linux

Communicating with an Artema Hybrid CC Payment device is actually deceptively simple. I’ve written an application what uses a webkit widget exclusively for the UI display, and so I hook into the Javascript to provide some extra functionality to the … Continue reading

Posted in c/C++, C/C++ Programming, Computer Science, Javascript Tutorials, Linux, OOP, Qt, Tips and Tricks, Topics, Tutorials | Tagged , , , , | Leave a comment

Apache2/MySQL on Ubuntu Configuration

Once you’ve installed apache2 and mysql on your server, you might want to try these configuration changes to make it perform a bit better: In /etc/mysql/my.cnf

And in Apache2’s config, /etc/apache2/apache2.conf, find the section for MPM prefork if yo … Continue reading

Posted in General Computing, Linux, MySQL, PHP/MySQL, Tips and Tricks, Topics, Tutorials, Writings | Leave a comment

Never Again! Backing up your rails .sqlite3 dbs

Well, with mysql, it’s pretty hard to overwrite your dbs, but with sqlite, it’s real easy. I did this, luckily I only lost about a days worth of work, but nevertheless, I have instituted a new rule for sqlite3 dbs: … Continue reading

Posted in Computer Science, General Computing, Linux, Ruby on Rails, Ruby on Rails, Tips and Tricks, Topics, Tutorials, Uncategorized, Writings | Tagged , , , , | Leave a comment