Some Things About My Own Server (STAMOS) is a perl script that gathers infomation about the computer is is running on (mainly from /proc) and writes these into an HTML file. This information consists of CPU (name and bogomips), amount of RAM, OS, load averages, currently mounted hard drives, current uptime, and best uptime. The language of the output file can be changed. For finding out the uptime, STAMOS needs uptimed (by Rob Kaper).
PureAgent monitors response times from an agent to a server by replaying transactions at specified intervals. This includes static and dynamic Web applications as well as other server applications. Response times are collected and alarms can be sent if performance and availability goals are not fulfilled. The agent is managed using a standard Web browser. Using the browser, an administrator specifies transactions to run, intervals, alarm settings, etc.
Systime tells you how much CPU time running a program uses. It is like the classic "time" command, except that "time" only tells the CPU time used by the immediate process, whereas "systime" includes other processes that serve the main process, such as the X server and kernel memory management processes. Systime reports all the CPU time used on the entire system while the subject program was running. It uses Linux's /proc filesystem.
Monjo is a Web application that helps monitoring a small to medium network of servers. It offers easy customization of notifications in case of network failures and is designed to allow for easy addition of new services that need to be monitored. It's internationalized and includes a Web interface in English and German. It currently supports notifications by email and can check services using ping, SMTP, HTTP, POP3, and IMAP4.
Ramon is an RMON2 network monitoring agent, as standardized in RFC-2021. There is a module suitable for loading into Net-SNMP via dlmod, so that the data generated by the agent is accessible. The following groups are functional: alHost, alMatrix, hlHost, hlMatrix, nlHost, nlMatrix, protocolDir, and protocolDist.
EmSniff is an application that helps you to capture network packets. It differs from TCPDump in that it runs as a service instead of an application. This makes it possible to capture packets in the background. This can help applications like Wireshark to be more secure since they don't have to run with root privileges anymore. They only have to connect to the EmSniff server via libemsniff.