====== Zabbix ======

===== rights to check free space =====

<code bash>
active check "vfs.fs.inode[/root/.cache/duplicity,pfree]" is not supported: Cannot obtain filesystem information: [13] Permission denied
active check "vfs.fs.size[/home/git-data/repositories/+gitaly/PackObjectsCache,pused]" is not supported: Cannot obtain filesystem information: [13] Permission denied
</code>

Investigate access right:
<code bash>
sudo -u zabbix /bin/bash
</code>

Solution:
<code bash>
apt install acl
setfacl -m u:zabbix:x /root
setfacl -m u:zabbix:x /root/.cache

setfacl -m u:zabbix:x /home/git-data
setfacl -m u:zabbix:x /home/git-data/repositories
setfacl -m u:zabbix:x /home/git-data/repositories/+gitaly
</code>

NOTE: ''gitlab-ctl reconfigure'' will change permissions to default.

===== Disable Link down trigger =====
  * Configuration --> Hosts
  * Type into filter fields:
    * Hosts: ''C3560G'' and ''C3560G-2''
    * Name: ''Link down''
    * Severity: ''Average''
    * Status: ''Enabled''
  * And change to ''disabled'' wanted port triggers

===== password recovery =====

<code sql>
USE zabbix;
UPDATE users SET passwd=md5('newpassword') WHERE alias='Admin';
</code>

===== Enable problem reporting =====

  * ''Configuration'' --> ''Actions''
  * Select from pull down menu ''Trigger actions'' 
  * enable ''Report problems to Zabbix administrators''

===== Enable autoregistration =====

  * ''Configuration'' --> ''Actions''
  * Select from pull down menu ''Autoregistration actions''
  * ''Create Action''
  * Name: ''autoregister''
  * Switch to ''Operations'' tab
    * Add ''Operations'':
      * ''Add host''
      * ''Add to host group''
        * ''Discovered hosts''
      * ''Link to template''
        * ''Linux by Zabbix agent''

<file agent.conf>
Server=127.0.0.1
ServerActive=127.0.0.1
#Hostname=Zabbix Server
HostnameItem=system.hostname
</file>

===== OpenWRT template =====

https://openwrt.org/docs/guide-user/services/network_monitoring/zabbix

===== LXC/container =====

https://www.zabbix.com/integrations/lxc