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SNMP Trap for a monitored process that runs under different names generates SNMP Trap Alert although this process is not down
Symptoms
  • SNMP Trap for a monitored process generates SNMP Trap Alert although this process is not down.

  • Example of custom SNMP Trap for FWD daemon in /etc/snmp/userDefinedSettings.conf file (per sk90860):

    proc fwd
    monitor -I -r 2 "fwd process down" .1.3.6.1.4.1.2021.2.1.100.1 == !0
    
Cause

SNMPD daemon looks at the process status at '/proc/$(pidof <PROCESS_NAME>)/status' to find out whether the process is alive.
If SNMPD daemon sees different processes, it might cause it to send false alarms (e.g., FWD process can run under the names 'fwd', 'fw' or 'fw_full').


Solution
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