Regwatch is a regex-based logfile watcher. It watches a logfile, and commits actions or alerts based on lines appearing in the logfile match regular expressions. It can also use regex-based transforms to make these matched log lines a little easier to read before feeding them to the action. The alerts are the same as mon's, allowing them to be used interchangeably.
OpenAIS is an open source implementation of the SA Forum (www.saforum.org) Application Interface Specification. The project currently implements APIs to improve availability by reducing MTTR. APIs available are cluster membership, application failover, checkpointing, eventing, distributed locking, messaging, closed process groups, and extended virtual synchrony passthrough. It is possible to write redundant applications that tolerate hardware, operating system, and application faults. Cluster software developers can write plugins to use the infrastructure provided by OpenAIS.
SPF is a new strategy for preventing junk mail. The present SMTP standard for email allows anyone to forge anyone else's email address. SPF verifies that the Sender address of an email message matches (according to some policy) the client IP address that submitted it. libspf2 is a complete and robust implementation of SPF which provides support for many MTAs. Support for new MTAs is in progress.
spfmilter is a milter (sendmail mail filter) which implements the Sender Policy Framework (SPF). SPF is a strategy for preventing junk mail. The SMTP standard for email allows anyone to forge anyone else's email address. SPF verifies that the Sender address of an email message matches (according to some policy) the client IP address that submitted it.
Qmrtg is a modular tool to help monitoring the activity of software processes. It's intended to be used with MRTG. It was originally written for monitoring qmail servers, but its modules are general enough to parse any kind of log file passed through multilog (see daemontools). QMRTG is modular. Each module carries out a different log analysis. A super-module lets the user easily request any analysis without having to know anything about the modules themselves. QMRTG is a modern alternative to qmailmrtg7.