File /tmp/zabbix_traps.tmp doesn't exists

[mzudemn]

Hello,

i've a problem with the snmp traps. I viewed a few topics here but i can't get rid of that error.

OS: Ubuntu 16.04.7 LTS
Zabbix: Zabbix 4.4.10

I've installed the snmptrapd and the zabbix_trap_receiver.pl - the path to the *.tmp file is the same in both configs ( I've tried the other one /var/log/.... too, but also nothing)
The firewall allows incoming traffic on port 162, but shouldn't matter at this point - i do the smtptrap test 'smtptrap -v 1........" local on the machine and the /tmp/zabbix_traps.tmp file doesn't exist.

I looked at the zabbix_server.log file -> nothing. I don't see any reaction after the 'smtptrap -v 1 ......' test.
( The Option 'Log unmatched SNMP Traps' in the general settings is set, so at minimum: i should see the test in the zabbix_server.log, shouldn't i? )

Anybody here who can tell me where to look next?

[mzudemn]

Yes, it is StartSNMPTrapper = 1 in the zabbix_server.conf


ps aux | grep snmp
snmp 1320 0.0 0.1 61420 4188 ? S 2020 64:06 /usr/sbin/snmpd -Lsd -Lf /dev/null -u snmp -g snmp -I -smux mteTrigger mteTriggerConf -p /run/snmpd.pid
zabbix 3323 0.0 0.1 986144 4536 ? S 11:38 0:00 /usr/sbin/zabbix_server: snmp trapp er [processed data in 0.000013 sec, idle 1 sec]
root 14358 0.0 0.0 68328 3396 ? Ss Jun02 0:00 /usr/sbin/snmptrapd -Lsd -p /run/sn mptrapd.pid

rights on /tmp/

drwxrwxrwt 9 root root 4096 Jun 3 11:47 tmp

EDIT: added some information

[Markku]

If this helps you, about setting up SNMP trap receiver on Debian 10: https://majornetwork.net/2021/05/con...bix-on-debian/

Markku

[tim.mooney]

OS: Ubuntu 16.04.7 LTS
Zabbix: Zabbix 4.4.10

I've installed the snmptrapd and the zabbix_trap_receiver.pl - the path to the *.tmp file is the same in both configs ( I've tried the other one /var/log/.... too, but also nothing)
The firewall allows incoming traffic on port 162, but shouldn't matter at this point - i do the smtptrap test 'smtptrap -v 1........" local on the machine and the /tmp/zabbix_traps.tmp file doesn't exist.

The two things I would look at next:

1. did you modify the snmp config to actually call zabbix_trap_receiver.pl ? You have to tell snmptrapd that it needs to call the trap receiver script when it receives traps for certain communities.
2. I don't use Ubuntu so I don't know if this is related, but on modern systems that use "systemd" to start up daemons, systemd may be configured to give that daemon a private temporary directory. Do some reading on "systemd PrivateTmp" and if that is the case for the snmptrapd service, you may need to adjust where Zabbix finds the file.

[cyber]

Have you started snmp trapper processes also? By default they are not started.
Server config StartSNMPTrapper parameter......