Checkservice is a Perl script that monitors services on remote hosts. It uses plugins to provide a more thorough check than just a socket check, and can be configured to check multiple services on multiple hosts using two different methods (simple and extended). It is able to write logs and when running in the background enables warnings. It features a beep-, mail-, and SMS-warning system.
Expresso Framework is an open standards-based J2EE architectural framework that allows the developer to concentrate on application logic. It is a library of extensible Java Server application framework components for creating database-driven Web applications based on open standards. Expresso integrates with Apache Jakarta Struts, which emphasizes presentation and application configuration, and bringing a powerful tag library to Expresso. Expresso adds capabilities for security, robust object-relational mapping, background job handling and scheduling, self-tests, logging integration, automated table manipulation, database connection pooling, email connectivity, event notification, error handling, caching, internationalization, XML automation, testing, registration objects, configuration management, workflow, automatic database maintenance, and a JSP tag library.
PHP Shell is a shell wrapped in a PHP script. It's a tool you can use to execute arbiritary shell-commands or browse the filesystem on your remote Web server. This replaces, to a degree, a normal telnet-connection. You can use it for administration and maintenance of your Web site using commands like ps, free, du, df, and more.
Wapsh allows users to login to a Unix workstation using a WAP-capable mobile phone. Features include shortcuts (to save phone typing), input of control and other special characters, command history, and searching and scrolling through long shell output. Wapsh automatically adapts to the main WAP browsers (UP and Nokia), and uses configuration files to further tailor the system for specific phones. A corresponding HTML (Web) interface is also included.
IP Traffic Volume uses Linux kernel iptables to log incoming and outgoing bytes though your network device(s) and can dump summarized log statistics in ASCII to the console or display in HTML via the included CGI interface for displaying on a Web server. It is highly configurable as to what kind of traffic is counted, e.g. to and from specific ports and/or specific IP addresses or groups of ports and addresses. It uses a mininum of resources and doesn't need a database for the logged data.
iptotal is an *extremly* simple network monitor tool that measures the number of IP packages traveling to/from a specific network interface. It is based on a packet sniffer using libcap, so it does not require SNMP. Using Tobi Oetiker's rrdtool it can create 2hr, daily, weekly, monthly and yearly graphs. It maintains an archive of the last 30 daily graphs. It was specifically written for a FREESCO router (http://www.freesco.org) but can be ported to other Linux distros.