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I was trying out CodeIgniter  today. I found it quite lightweight and easy to get started with. MVC was fine until I came across a strange issue. Every time I tried to connect to the database, I would end up getting the infamous "500 Internal server error". Unfortunately, even after checking through all http logs, I was not able to trace it to anything that could've gone wrong. I had apache, php, mysql installed and configured correctly. Spent about 4 hours trying out different configurations, playing around with the database names, model names, etc, just to realise later that I did not have the php-mysql driver installed! This time I was on an ubuntu machine, so I had to: apt-get install php5-mysql and then although I could see that apt-get had already restarted apache2 for me, I just thought of doing it myself as well, service apache2 restart and there it was. Everything was working the way I wanted it to be. It was a very silly thing to miss out on this one. I have don...

I had a setup of tomcat running on port 8080 and Apache proxying for tomcat on port 80. If I tried to access webapps directly from tomcat on port 8080,. they were accessible, while on port 80, I would get the followig error: Proxy Error 502 “Reason: Error reading from remote server” with Apache 2.2.3 following fix worked: adding retry=1 acquire=3000 timeout=600 Keepalive=On after the Proxy directive in the http configuration.

By default, CouchDb is configured to be access only from a local port, i.e: you can connect to a couchdb instance as long as it is on the same host. Also, it is necessary that the HTTP request be made using the loopback IP address (127.0.0.1). In case you want to be able to access a couchdb instance from an external machine, you need to make some changes to the couchdb configuration. Note that you would need to have superuser access in order to make changes to these files. Usually couchdb will have two configuration (ini) files in /etc/couchdb depending on your installation. Both these files (default.ini and local.ini) can be used to enable remote hosts to access couchdb. The configuration required for this is: [httpd] port = 5984 bind_address = 0.0.0.0 By default the configuration would be: [httpd] port = 5984 bind_address = 127.0.0.1 This means that the Http server is bound only to the loopback IP address, which is why we change it to 0.0.0.0 to make it bind to any IP address. If...

This post is a very trivial one, but it's just that I've found myself ignoring these things time and again. Every time I need to setup a new system for development in PHP or Drupal, I've ran into almost all of these small "issues". I would always prefer to have the working copy of the code somewhere in my home directory , and maybe have it symlinked from the directory which is set as my "Document Root" in Apache. # cd /var/www/html # ln -s ~ausmarton/Public/website/drupal-7.7 drupal Assuming, everything is set up and will work, I go ahead to access the application in my browser, just to find out that all I can get is a big "Forbidden"  message. Now, this happens because, in linux, to be able to access the contents of a directory, you should have the 'x' permission. But, unfortunately, home directories are by default set not to be accessible by anyone other than the designated user. drwx------. 37 ausmarton ausmarton  4096 Aug 25 17:08 a...