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Zabbix

rights to check free space

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

Investigate access right: 

sudo -u zabbix /bin/bash

Solution: 

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

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

  • 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

USE zabbix;
UPDATE users SET passwd=md5('newpassword') WHERE alias='Admin';

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
Server=127.0.0.1
ServerActive=127.0.0.1
#Hostname=Zabbix Server
HostnameItem=system.hostname

OpenWRT template

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

LXC/container

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