Zabbix

This guide is written when installing Zabbix V5.0.1. Terminology: Host and Client are equivalent, Server and Zabbix server are equivalent.

• Install Zabbix repository

  # wget https://repo.zabbix.com/zabbix/5.0/debian/pool/main/z/zabbix-release/zabbix-release_5.0-1+buster_all.deb
  # dpkg -i zabbix-release_5.0-1+buster_all.deb
  # apt update

• Replace buster with stretch for Debian 9

• Install Zabbix server, frontend, agent

  # apt install zabbix-server-mysql zabbix-frontend-php zabbix-apache-conf zabbix-agent

• Create initial database

  # mysql -uroot -p
  password
  mysql> create database zabbix character set utf8 collate utf8_bin;
  mysql> create user zabbix@localhost identified by 'password';
  mysql> grant all privileges on zabbix.* to zabbix@localhost;
  mysql> quit;

• Import initial schema and data. You will be prompted to enter your newly created password.

  # zcat /usr/share/doc/zabbix-server-mysql*/create.sql.gz | mysql -uzabbix -p zabbix

• Configure the database for Zabbix server

  sudo vim /etc/zabbix/zabbix_server.conf
  DBPassword=password

• Configure PHP for Zabbix frontend, edit file /etc/zabbix/apache.conf, uncomment and set the right timezone for you.
• Start Zabbix server and agent processes and make it start at system boot

  # systemctl restart zabbix-server zabbix-agent apache2
  # systemctl enable zabbix-server zabbix-agent apache2

• See Install and configure Zabbix server for your platform

• Connect to your newly installed Zabbix frontend: http://server_ip_or_name/zabbix
• Follow steps described in Zabbix documentation
• In the last step you need to save the configuration.
  1. Make /usr/share/zabbix/conf writeable for the apache2 user (www-data or bakuppc)
  2. Rename the symbolic link then save the configuration
  3. Move the configuration file to /etc/zabbix/web/
  4. Rename back the symbolic link
  5. If running under a default BackupPC installation change ownership of /etc/zabbix/web from www-data to backuppc

• If you run a separate server and want to make the web interface available, you need to setup a VirtualHost proxy on your main apache server. How this is done is described in Apache 2.4 and PHP 7.4

• Install Zabbix agent

  # apt install zabbix-agent

• Modify /etc/zabbix/zabbix_agentd.conf:

  #DenyKey=system.run[*]
  Server=192.168.x.x
  ServerActive=192.168.x.x
  Hostname=<hostname> # must be identical to the one used in Zabbix server configuration

• Start Zabbix agent process and make it start at system boot

  # systemctl start zabbix-agent
  # systemctl enable zabbix-agent

• Allow port 10050 in the host firewall, e.g. UFW Firewall
• Allow port 10051 in the inter-zone firewall (if host is on different subnet than server), e.g. host → server, to allow active checks

• Create new host with interface Agent on IP address 192.168.x.x
• Make sure the host name corresponds to Hostname in the configuration file of the host
• Choose Linux servers as group
• Choose Template OS Linux by Zabbix agent template under tab templates

• Enable SNMPv2 and set community name in Control Panel → Terminal & SNMP

• Create new host with interface SNMP
• Import template xml file from Zabbix + Synology
• Choose Templates as group
• Choose Template Synology DiskStation template under tab templates
• Set the {$SNMP_COMMUNITY} macro in host/macros tab

• Download Zabbix agent. Unzip and move to a folder, e.g. C:\zabbix.
• Modify C:\zabbix\conf\zabbix_agentd.conf:

  #DenyKey=system.run[*]
  Server=192.168.x.x
  ServerActive=192.168.x.x
  #Hostname=Windows host
  HostnameItem=system.hostname # this is the Windows hostname, must be identical to the one used in Zabbix server configuration

• Open a command prompt as administrator, start zabbix agent process and make it start at system boot

  C:\> C:\zabbix\bin\zabbix_agentd.exe -c C:\zabbix\conf\zabbix_agentd.conf -i
  C:\> C:\zabbix\bin\zabbix_agentd.exe -c C:\zabbix\conf\zabbix_agentd.conf -s

• Open Windows firewall, select Change settings then Allow another app…, and browse to the agent executable, e.g. C:\zabbix\bin\zabbix_agentd.exe. Add the app to the firewall.

• Create new host with interface Agent
• Make sure the host name corresponds to Hostname in the configuration file of the host
• Choose Templates/Operating systems as group
• Choose Template OS Windows by Zabbix agent template under tab templates

• how do I find my computer's hostname
• How to Install Zabbix Agent and Add Windows Host to Zabbix Monitoring

• How To Use ZABBIX Maps For Better Visualization