SNClient

SNClient (Secure Naemon Client) is a general-purpose monitoring agent that replaces NRPE and NSClient++.

Contact

• Report a security advisory through GitHub Security.
• Join the mailing list on Google Groups.
• Ask a question on Stack Overflow.
• Report a bug in GitHub Issues.
• Chat with developers on IRC Libera #snclient (Webchat).
• Get professional support from ConSol*.

Documentation

Read the documentation on omd.consol.de.

The documentation source is in docs/.

Supported Operating Systems

	i386	x86_64	aarch64 (arm)
Linux	X	X	X
Windows*	X	X	X
FreeBSD	X	X	X
macOS		X	X

* Only Windows 10 / Windows Server 2016 or newer.

See the detailed list of supported operating systems.

Supported Protocols

• Prometheus HTTP(S)
• NRPE (v2/v4)
• NSCP REST API via HTTP(S) (checks only)

Installation

Download prebuilt binaries and packages for all supported systems from the release page.

Follow the installation instructions.

Check Plugin Status

	Windows	Linux	macOS	BSD
check_alias	X	X	X	X
check_connections	X	X	X	X
check_cpu_utilization	X	X	X	X
check_cpu	X	X	X	X
check_dns	X	X	X	X
check_drivesize	X	X	X	X
check_drive_io	X	X	X	X
check_dummy	X	X	X	X
check_eventlog	X
check_files	X	X	X	X
check_http	X	X	X	X
check_index	X	X	X	X
check_kernel_stats		X
check_load	X	X	X	X
check_logfile	X	X	X	X
check_mailq		X	X	X
check_memory	X	X	X	X
check_mount	X	X	X	X
check_multi	X	X	X	X
check_network	X	X	X	X
check_nsc_web	X	X	X	X
check_ntp_offset	X	X	X	X
check_omd		X
check_os_updates	X	X	X
check_os_version	X	X	X	X
check_pagefile	X
check_pdh	X
check_ping	X	X	X	X
check_process	X	X	X	X
check_service	X	X
check_snclient	X	X	X	X
check_snclient_version	X	X	X	X
check_swap_io		X	X	X
check_tasksched	X
check_tcp	X	X	X	X
check_temperature		X
check_uptime	X	X	X	X
check_wmi	X
check_wrap / external scripts	X	X	X	X

Roadmap

Planned changes:

• add time support in thresholds, e.g. warn=time > 18:00 && load > 10
• OpenTelemetry
• improve configuration
  • add a configuration validator
  • use strongly typed configuration items

Not gonna happen

SNClient will most likely not include these features:

• CheckMK support
• Embedded Lua support
• Embedded Python support
• Graphite support
• NRDP support
• NSCA support
• SMTP support
• Website/REST API (except doing checks)
• check_nt support