LibreNMS stopped working

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22

Thanks. I ran ./validate and here is the result:

./validate.php
====================================
Component | Version
--------- | -------
LibreNMS  | 1.70.1
DB Schema | 2020_11_02_164331_add_powerstate_enum_to_vminfo (191)
PHP       | 7.4.13
Python    | 3.6.8
MySQL     | 5.5.68-MariaDB
RRDTool   | 1.4.8
SNMP      | NET-SNMP 5.7.2
OpenSSL   | 
====================================

[OK]    Composer Version: 2.0.7
[OK]    Dependencies up-to-date.
[OK]    Database connection successful
[FAIL]  Time between this server and the mysql database is off
 Mysql time 2020-12-03 17:17:14
 PHP time 2020-12-03 18:17:14

[FAIL]  MySQL Database collation is wrong: latin1 latin1_swedish_ci
        [FIX]: 
        Check https://t.libren.ms/-zdwk for info on how to fix.
[OK]    Database schema correct
[FAIL]  You have no timezone set for php.
        [FIX]: 
        http://php.net/manual/en/datetime.configuration.php#ini.date.timezone

Here is the permissions for librenms.log:

ll /opt/librenms/logs/
total 3186696
-rw-rw-r--. 1 librenms librenms    2198529 Dec  3 16:23 daily.log
-rw-rw-r--. 1 librenms librenms          0 Jun  2  2020 discovery_wrapper.log
-rw-rw-r--. 1 librenms librenms 3259143613 Dec  3 17:17 librenms.log
-rw-rw-r--. 1 librenms librenms          0 Jun  2  2020 poller_wrapper.log
-rw-rw-r--. 1 librenms librenms          0 Jun  2  2020 services_wrapper.log
23

on file /etc/php-fpm.d/www.conf I changed user and group from apache to librenms and I get to the login page.

sudo less /etc/php-fpm.d/www.conf
; Start a new pool named ‘www’.
; the variable $pool can be used in any directive and will be replaced by the
; pool name (‘www’ here)
[www]

; Per pool prefix
; It only applies on the following directives:
; - ‘access.log’
; - ‘slowlog’
; - ‘listen’ (unixsocket)
; - ‘chroot’
; - ‘chdir’
; - ‘php_values’
; - ‘php_admin_values’
; When not set, the global prefix (or @php_fpm_prefix@) applies instead.
; Note: This directive can also be relative to the global prefix.
; Default Value: none
;prefix = /path/to/pools/$pool

; Unix user/group of processes
; Note: The user is mandatory. If the group is not set, the default user’s group
; will be used.
; RPM: apache user chosen to provide access to the same directories as httpd
;user = apache
user = librenms
; RPM: Keep a group allowed to write in log dir.
;group = apache
group = librenms

Now the error is LDAP related:

PHP LDAP support missing

PHP does not support LDAP, please install or enable the PHP LDAP extension

Check your log for more details. (librenms.log)

If you need additional help, you can find how to get help at How to get help - LibreNMS Docs.

24

OK, installed php-ldap (is missing from the copy+paste guide), restart the services (well not actually, I reboot the damn thing) and we are back monitoring!

sudo yum install php-ldap

25

in
/etc/php-fpm.d/www.conf

I have this
127.0.0.1:9000

Think I should put that in nginx.conf then ?

26

Yes, for the listen value

27

or change listen to the socket

28

thanks, I now have the website starting but I get warning about write access.

image
image1405×587 42.7 KB

29

Do you use SELinux? Have you checked your permissions for /opt/librenms/logs?

30

on file /etc/php-fpm.d/www.conf change user and group from apache to librenms

Example:

sudo less /etc/php-fpm.d/www.conf
; Start a new pool named ‘www’.
; the variable $pool can be used in any directive and will be replaced by the
; pool name (‘www’ here)
[www]

; Per pool prefix
; It only applies on the following directives:
; - ‘access.log’
; - ‘slowlog’
; - ‘listen’ (unixsocket)
; - ‘chroot’
; - ‘chdir’
; - ‘php_values’
; - ‘php_admin_values’
; When not set, the global prefix (or @php_fpm_prefix@) applies instead.
; Note: This directive can also be relative to the global prefix.
; Default Value: none
;prefix = /path/to/pools/$pool

; Unix user/group of processes
; Note: The user is mandatory. If the group is not set, the default user’s group
; will be used.
; RPM: apache user chosen to provide access to the same directories as httpd
;user = apache
user = librenms
; RPM: Keep a group allowed to write in log dir.
;group = apache
group = librenms

31

For reference I had to edit these 2 files.

vi /etc/php-fpm.conf

vi /etc/nginx/conf.d/librenms.conf

configure the sock link and restart the 2 services

systemctl restart php-fpm
systemctl restart nginx

If the service isn’t enabled you can run these command

systemctl enable --now nginx
systemctl enable --now php-fpm

I used this guide to upgrade PHP to 7.4

1 Like
32

Careful with changing php-fpm to run as librenms if you have more than one website on this server.
The new install docs have you create a custom fpm config on a specific socket for LibreNMS running as the user. When using www, it is likely to be shared with other sites, so it should not run as librenms. Check the current install docs to see.

1 Like
33

How do I switch to that? I have the same problem, but there’s no php v7.3 update available on my version of the librenms VM I installed.

34

Following this guide: https://www.tecmint.com/install-php-7-in-centos-7/, disabling the webtatic repo, and then doing a yum update on my Librenms VM allowed me to get the new version of PHP.
I then had the bad gateway error, but enabling and then starting php-fpm seems to have fixed the problem :slight_smile: