DUMA (Detect Unintended Memory Access) stops your program on the exact instruction that overruns (or underruns) a malloc() memory buffer. GDB will then display the source-code line that causes the bug. It works by using the virtual-memory hardware to create a red-zone at the border of each buffer: touch that, and your program stops. It can catch formerly impossible-to-catch overrun bugs. DUMA is a fork of Bruce Perens' Electric Fence library.
Network-I is a network analyzer, comprising a fast sniffer (niftap) with a powerful filtering language and a suite of tools to process the captured packets. The possibilities range from the straightforward display of captured packets in exhaustive detail (or alternatively, as one-line summaries) to measurement of traffic rates (which can be recorded to file or displayed in real-time via the GUI) and automated reports on packet retransmissions and losses.
Cascade is an MVC application development framework written in PHP5. Although inspired by the Java Struts framework, Cascade is significantly different; in particular, it provides a built-in mechanism for caching result pages, and a concept of execution mode that affects how chains are followed.
GreyList Sendmail milter is a lightweight, fast, and reliable Sendmail milter that implements the Greylisting antispam technology. It has a flexible configuration and a very effective Greylisting algorithm on the base of this tuple: sender's IP address (Class C subnet), envelope sender address, and envelope recipient address. It's a light alternative to the milter-greylist, graymilter, and milter-gris milters.
Network Tracker and Management is a Web-based network management application. It can store information about all of your network devices, and allows you to track all changes and updates made to the device. Having this information readily available will enhance your ability to troubleshoot network problems.
collectd is a small and modular daemon which collects system information periodically and provides means to store the values. Included in the distribution are numerous plug-ins for collecting CPU, disk, and memory usage, network interface and DNS traffic, network latency, database statistics, and much more. Custom statistics can easily be added in a number of ways, including execution of arbitrary programs and plug-ins written in Perl. Advanced features include a powerful network code to collect statistics for entire setups and SNMP integration to query network equipment.
MIB Views is an entry-level SNMP management application providing an easy to use tabbed interface with several SNMP tools. The tools are based partly on those bundled in MIB Smithy, with a more consolidated GUI and new features. The suite includes MIB Browser (Tree View), SNMP Query, Table View, SNMP Walk, and Trap Watch tools, with more tools and plugin features in the works. MIB Views supports SNMPv1, SNMPv2c, and SNMPv3, with MD5 and SHA authentication and encryption with DES or AES.