Cannot stat SNMP trapper file

[Beginner]

Hello,

I'm trying to get SNMP Traps to work, but am having alot of struggles with configuring so.

I am working on an Ubuntu machine and have followed this guide https://www.zabbix.org/wiki/Start_wi...raps_in_Zabbix
everything is basically the same expect for the package installations. And i didn't use the 2.2.1 version of the perl script but the 3.2.4 version, since i'm running zabbix on that version.

I did try everything and got it eventually to work, but as soon as i cheered, it got stuck again after rebooting. If i'm looking at my zabbix_server log there is an error saying:
Cannot stat file "tmp/zabbix_traps.tmp" no such file or directory.

When i manually create this file, i won't get the errors but the tmp file won't get filled with data of the received traps.

Also i've allowed port 161/udp and 162/udp with UFW and rebooted the machine.

Any ideas and help is appreciated
Bye

EDIT: Also these are the steps i did when trying to achieven snmp trapping

1. put zabbix trap receiver perl fil in /usr/bin and add execute permission in the perl file the trapping directory is /tmp/zabbix_traps.tmp
2. add following lines to /etc/snmp/snmptrapd.conf

authCommunity execute public
authCommunite execute ZabbixServer
perl do "/usr/bin/zabbix_trap_receiver.pl";

3. enable snmp trapping in zabbix_server.conf and define tmp file

StartSNMPTrapper=1
SNMPTrapperFile=/tmp/zabbix_traps.tmp

4. Add the MIB I want to use to /usr/share/snmp/mibs (DELL-SHADOW-MIB.txt) and define it in the /etc/snmp/snmp.conf with mibs +DELL-SHADOW-MIB
5. Reboot and enable services snmptt snmptrapd snmpd

[ovas]

Hello!

Taking in consideration error message:
"Cannot stat file "tmp/zabbix_traps.tmp" no such file or directory."

As per the documentation, if systemd parameter PrivateTmp is used, this file is unlikely to work in /tmp. Can it be your case?
Can you please display the outputs from grep PrivateTmp /etc/systemd/ -R?

[Beginner]

Hello!

Taking in consideration error message:
"Cannot stat file "tmp/zabbix_traps.tmp" no such file or directory."

As per the documentation, if systemd parameter PrivateTmp is used, this file is unlikely to work in /tmp. Can it be your case?
Can you please display the outputs from grep PrivateTmp /etc/systemd/ -R?

I've tried changing the destination of the file to other location but i will still get the same errors. Also it did work previously in this location.

The command gives me this:
/etc/systemd/sysinit.target.wants/systemd-timesyncd.server:PrivateTmp=yes

That's all i'm getting

[Beginner]

Bump,

I still need help with this problem. When i change the directory of the .tmp file in zabbixserver config file, and in the perl script, i will just get the same error but with different location of the error:

28017:20170428:095549.904 cannot stat SNMP trapper file "/var/log/zabbix_traps.tmp": [2] No such file or directory

1634:20170427:180827.384 cannot stat SNMP trapper file "/tmp/zabbix_traps.tmp": [2] No such file or directory

[ovas]

Hello!

Some additional tips on troubleshooting this situations:
1. Disable SElinux temporarily to see if an issue will persists.
2. Make sure zabbix user can execute the full path and use the file:
su - zabbix -c 'touch /tmp/zabbix_traps.tmp && echo test >> /tmp/zabbix_traps.tmp'