One of the most asked question related to OpenX ad server is: "How much load will OpenX place on my server?"
At the first place OpenX shouldn't be installed on shared hosting.
It's for sure that you will need to make some experiments in order to realize what configuration or hosting provider are the best solution for you. Luckily, OpenX ad server is free to use and it doesn't need to be licenced so you are free to use it on many machines at the same time.
OpenX supports two storage types for banners: SQL storage and webserver.
- SQL banners are located in the database itself
- Webserver banners are located in folder on the server's file system
The question is what storage to use for your OpenX installation, SQL or Webserver banners?
We suggest using web server to keep and deliver your banners because it will work much faster. SQL storage OpenX banners take up space in the database and make it slower and somehow overbloated.
Many users ask: "How to view graphs of OpenX statistics?"
Luckily, starting with v2.4 OpenX support this feature. Note that GD extension for PHP should be loaded on your server previously.
GD is a library that is used for images processing and if you do not have it the graphs couldn't be created. GD library is common on hosting providers but check with hosting support whether your server support it.
Unfortunatelly, safe_mode is not compatible with some OpenX features and its requirements.
It is not possible to install OpenX with php safe_mode disabled!
On shared hosting you could ask support department to turn off the safe_mode.
Also, newer PHP versions do not support safe_mode setting. You should be familiar with other PHP security settings, too (e.g. open_basedir and many others).
One of the most common question Apache users ask themselves is:
Where is located Apache error log? or What is Apache error log location?
So, here is the answer:
error_log file is by default locate in /etc/httpd/logs/ folder, full path is /etc/httpd/logs/error_log