Kcollectd is a graphical KDE-frontend to collectd that allows to view RRD files
that have been created by collectd.
It allows to easily navigate in the data with the mouse and can be used as a
chart recorder.

Interactive kernel monitor that combines dmesg and kmod.

libfixbuf is a compliant implementation of the IPFIX Protocol, as defined in
RFC 5101. It supports the information model defined in RFC 5102, extended as
proposed by RFC 5103 to support information elements for representing biflows.
libfixbuf supports UDP, TCP, SCTP, TLS over TCP, and Spread as transport
protocols. It also supports operation as an IPFIX File Writer or IPFIX File
Reader.

ipfixDump is a command line tool for printing the contents of an IPFIX
file as text.

This plugin checks the hardware health of Adaptec Raid controllers with the
aaccli software installed. It uses the aaccli command to acquire the
condition of the adapter's disks and containers.

A Nagios plugin to monitor Cisco UCS rack and blade center hardware.

An Icinga/Nagios plugin to monitor resources on Microsoft Azure.

This plugin checks various parameters from DB2 database servers.

This plugin checks the hardware health of Fujitsu servers (using SERVERVIEW-STATUS-MIB)

A generic plugin for Icinga/Nagios which checks json values from
a given HTTP endpoint against argument specified rules and
determines the status and performance data for that service.

A plugin, which is used to monitor various parameters of a IMAP server.

A Nagios/Icinga plugin for checking connectivity to an MQTT broker.
Or with --readonly monitor an mqtt application. Or for checking the
status of MQTT clients maintaining the status on an MQTT broker.

This plugin is used to monitor a variety of MS SQL Server database metrics.

This plugin checks the security level of your Nextcloud instance
with the Nextcloud Security API.

It check uses Nextcloud's own security scan at scan.nextcloud.com to
check if your Nextcloud instance has any known vulnerabilities/risks.

A nagios/icinga plugins that checks the network time.

This plugin checks the hardware health and various interface metrics of
network components like switches and routers.

A monitoring plugin to check components and health status of systems
which support Redfish.

A Plugin that checks various parameters of a SAP system

This plugin checks various parameters from SQLBase (Gupta) databases.

Checks an X.509 certificate:
- checks if the server is running and delivers a valid certificate
- checks if the CA matches a given pattern
- checks the validity
- checks SSL Labs grade

This plugin checks the hardware health and various interface metrics
of tape libraries

This plugin checks the hardware health and various interface metrics
of uninterruptible power supplies