BindMon runs on a DNS server, monitors the health of one or more TCP services on your network. If those servers go down, BindMon will write altered BIND zone files, and send a hangup signal (SIGHUP) to the DNS server (usually BIND, sometimes called NAMED), to tell it to load a new zone file.
Normally, you would use this in conjunction with a `farm' of identical servers. BIND can do load balancing between these servers using a round-robin algorithm. BindMon will alter BIND input files (zone files) when servers fail to answer, and also when they come back up.
Currently BindMon only checks whether a given TCP port connects. Future versions might interrogate ports for more complex queries.
The BindMon project works like a text pre-processor, by reading a marked up zone file, doing server health monitoring, and writing `clean' BIND zone files as output.
What's New in This Release:
· PID file; better error handling; sequence number in zone files
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