Community

banshee is under active development: collectors will keep changing, and a version you publish will likely need adjustments. For stable use, wait for version 1.0.0.

Linux

banshee/linux-collection/linux/snmp/

users

Number of open sessions on a Linux host by SNMP.

  • linux
  • snmp
  • users
  • sessions
  • net-snmp

by banshee1 installation2 versions

v2Latest

Published on October 28, 2026. One naming convention across collections; documentation completed.

Open sessions on a Linux host, by SNMP

Returns the number of open sessions. One watch is offered, with no default threshold.

Versions

Generic: hrSystemNumUsers (HOST-RESOURCES-MIB) is served the same way by net-snmp on any Linux.

How it works

The collector reads hrSystemNumUsers (HOST-RESOURCES-MIB): net-snmp counts the sessions the system records in utmp, on the console as well as remote ones (SSH, a graphical session).

Prerequisites

  • snmpd (net-snmp) running on the host, listening on an address the poller reaches (UDP 161), with the firewall open to the poller only.
  • The view granted to the poller includes hrSystem (.1.3.6.1.2.1.25.1), which most default configurations already allow.
  • Read-only access, SNMPv2c or SNMPv3, set on the host or one of its folders (protocol:snmp:* variables).
# /etc/snmp/snmpd.conf
agentaddress udp:161
view   banshee included .1.3.6.1.2.1.25.1
rocommunity <community> 192.0.2.10 -V banshee
# or: rouser <user> priv -V banshee

Outputs

NameLabelUnitPer instance
sessionsOpen sessions—no

Watches

NameTitleKindDefaultsChecked by default
too-manyToo many open sessionsabove a threshold, on sessionsno thresholdno

Limits

  • What is normal depends on the server, a jump host or a server nobody logs into: the watch has no default threshold.
  • A session that does not write to utmp (a command run over SSH without a terminal, an automation tool) is not counted.