Requirements to run OPN

To run OPN you will need:
Apache version 1.3.26 (minimum)
PHP: Version 4.x minimum
(minimum tested version is 4.0.5 – version 4.3.2 is recommended)
MySQL database Version 3.23 or higher
--- or Posgres 6.4 or higher
--- or Interbase 5 or higher
--- or Firebird 1 or higher
--- or SQLite V1.55

With “ADODB“ database layer further databases are possible, additional layer classes will be created if needed.
A complete installation including German and English language files and all available modules will need at least 60 to 80 MB web space. If the script is running, the required web space will increase since additional data belonging to the core content will be saved in the cache directory.