NetGeo IP address locator service interface class interfaces with the NetGeo service to determine the geographic location of a machine with a given IP address. It is also capable of calculating the distance between any to locations in the world given their longitude and latitude coordinates.
LAN Management System (LMS) is a set of database-driven applications capable of managing multiple networks of computers and customers. It uses a Web UI and either a multipurpose daemon written in C or a set of Perl scripts that perform scheduled tasks and configure your system services. It was designed to organize small self-financed networks, but is mature enough to suit the needs of medium sized ISPs. Support for multiple databases and languages are included, and a template system allows it to blend in with your existing infrastructure.
DB_eSession is a feature-packed PHP class that stores session data in a MySQL database rather than files. It is powerful, designed with security in mind, and is easy to utilize. The code contains lots of comments, and it comes with full documentation and examples of how to use the class including a basic authentication login/logout process. It includes member functions useful (to webmasters) for monitoring or viewing, deleting, and altering sessions validity for the case of locking one or more sessions upon detection of unauthorized use.
snmp4php implements Simple Network Management Protocol (SNMP) in pure PHP as an alternative to the UCDSNMP/NETSNMP extension. It supports threadless parallel gets, walks, and sets for extremely fast polling (compared to sequential) of an entire network. Traps and bulk gets are supported. A simple MIB compiler is included.