circa 1996 - 1999.
known as 'smt' (system monitoring thing)
collection of perl and shell scripts. Ping and limited SNMP
capabilities. Notifications via coded numeric paging.
circa 2000 - 2001.
known as 'whassup' (variation on "what's up").
complete rewrite
Extensive TCP, UDP, and program testing capabilities.
Notifications via text pages (via qpage).
Web front-end.
circa 2001 - current
known as 'argus' (from Greek Mythology).
complete rewrite
more efficient engine, more generalized monitoring, notification, and
escalation systems.
circa 21/Oct/2002
added per user views, and access-control
circa 1/Nov/2002
Bug fix release.