Problems with trap_in.php

[SgtSiff]

Main question

I can't seem to get traps into icinga2. I believe I have everything setup correctly, and using the following command:

sudo snmptrapd -D -f -Loe

I was able to see that traps are being received:

2019-10-01 12:17:24 ip-x-x-x-x [x.x.x.x] (via UDP: [x.x.x.x]:xxxxx->[x.x.x.x]:xxx) TRAP, SNMP v1, community public SNMPv2-SMI::mib-2.33.2 Enterprise Specific Trap (4) Uptime: 3:43:47.45 SNMPv2-SMI::mib-2.33.1.6.2.1.1.7 = INTEGER: 7 SNMPv2-SMI::mib-2.33.1.6.2.1.2.7 = STRING: ".1.3.6.1.2.1.33.1.6.3.2"

However, nothing is being shown in trapdirector in icingaweb2. From running the command above, I believe I have traced it down to the following:

trace: run_shell_command(): mibgroup/utilities/execute.c, 60: run:shell: running '/usr/share/icingaweb2/modules/trapdirector/bin/trap_in.php' /usr/share/icingaweb2/modules/trapdirector/bin/trap_in.php: 1: /usr/share/icingaweb2/modules/trapdirector/bin/trap_in.php: cannot open ?php: No such file /usr/share/icingaweb2/modules/trapdirector/bin/trap_in.php: 3: /usr/share/icingaweb2/modules/trapdirector/bin/trap_in.php: //: Permission denied /usr/share/icingaweb2/modules/trapdirector/bin/trap_in.php: 4: /usr/share/icingaweb2/modules/trapdirector/bin/trap_in.php: Syntax error: "(" unexpected

I thought it was a permissions thing, so I tried to CHMOD the trap_in.php file so ther permissions were as follows:

-rwxrwxrwx 1 root root 596 Sep 30 15:27 trap_in.php

But no luck.

Any suggestions?

Purpose
Receive traps in icingaweb2 trapdirector.

Your Environment:

If related to the question in any way :

company | 1.0.0
director | 1.6.2
doc | 2.7.1
idoreports | 0.9.1
ipl | v0.3.0
map | 1.1.0
monitoring | 2.7.1
reporting | 0.9.2
theme-dark | 0.0.1
trapdirector | 1.0.2

• Icinga 2 version (icinga2 --version):

icinga2 - The Icinga 2 network monitoring daemon (version: r2.10.5-1)

• Operating System and version:

Distributor ID: Ubuntu
Description: Ubuntu 18.04.3 LTS
Release: 18.04
Codename: bionic

• Webserver, PHP versions:

Server version: Apache/2.4.29 (Ubuntu)
Server built: 2019-09-16T12:58:48

PHP 7.2.19-0ubuntu0.18.04.2 (cli) (built: Aug 12 2019 19:34:28) ( NTS )
Copyright (c) 1997-2018 The PHP Group
Zend Engine v3.2.0, Copyright (c) 1998-2018 Zend Technologies
with Zend OPcache v7.2.19-0ubuntu0.18.04.2, Copyright (c) 1999-2018, by Zend Technologies

[patrickpr]

Hi,
trap_in.php is a php interpreted script which needs to be executed by PHP.

So your snmptrapd.conf should contain : traphandle default < php binary > < trap_in with path >

See doc : https://github.com/patrickpr/trapdirector/blob/master/docs/01-install.md#snmptrapd-configuration

If you can't make it work, send me your snmptrapd.conf so I have a look.

/Patrick

[bitboy85]

Hi,
i ran into the same issue using the automated installation script.
It put the following line into snmptrapd.conf
traphandle default -a /usr/share/icingaweb2/modules/trapdirector/bin/trap_in.php

system is raspbian buster.

[patrickpr]

Hi,

There should be php binary with path instead of '-a' : can you send me the options you used with the script ?
For a quick fix, replace '-a' by php binary with path.

[bitboy85]

Hi,

i already replaced it and it worked :)

i used the command line provided in the configuration section
Automatic installation As user root, execute this script : /usr/share/icingaweb2/modules/trapdirector/bin/installer.sh -c all -d /usr/share/icingaweb2/modules/trapdirector -p -a www-data -w /etc/icingaweb2

[patrickpr]

Hi,
I will make some checks so that the value of php binary is never empty (because then the script uses '-a' as value of php binary...).
What is the result of the following command on your system :
echo '<?php echo PHP_BINARY . "\n"; ?>' | <insert your php binary here>

Because it seems that this pre-defined constant (PHP_BINARY) is empty in your case.

[bitboy85]

Hi,

this is the result. As said, i'm using raspbian buster with default packages sources.

 echo '<?php echo PHP_BINARY . "\n"; ?>' | php
 /usr/bin/php7.3