Maintenance

Zabbix

What is Zabbix?

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Zabbix Server

Installation

> sudo -s
> wget https://repo.zabbix.com/zabbix/7.0/ubuntu/pool/main/z/zabbix-release/zabbix-release_latest+ubuntu24.04_all.deb
> dpkg -i zabbix-release_latest+ubuntu24.04_all.deb
> apt update

Zabbix + PostgreSQL + Nginx

> sudo apt install zabbix-server-pgsql zabbix-frontend-php \
    php8.3-pgsql zabbix-nginx-conf zabbix-sql-scripts zabbix-agent

Zabbix + PostgreSQL + Apache

> sudo apt install zabbix-server-pgsql zabbix-frontend-php \
    php8.3-pgsql zabbix-apache-conf zabbix-sql-scripts zabbix-agent

Zabbix + MySQL + Nginx

> sudo apt install zabbix-server-mysql zabbix-frontend-php \
    zabbix-nginx-conf zabbix-sql-scripts zabbix-agent
> mysql -uroot -p
password
mysql> create database zabbix character set utf8mb4 collate utf8mb4_bin;
mysql> create user zabbix@localhost identified by 'password';
mysql> grant all privileges on zabbix.* to zabbix@localhost;
mysql> set global log_bin_trust_function_creators = 1;
mysql> quit;
> zcat /usr/share/zabbix-sql-scripts/mysql/server.sql.gz | mysql --default-character-set=utf8mb4 -uzabbix -p zabbix

Zabbix + MySQL + Apache

> sudo apt install zabbix-server-mysql zabbix-frontend-php \
    zabbix-apache-conf zabbix-sql-scripts zabbix-agent

> mysql -uroot -p
password
mysql> create database zabbix character set utf8mb4 collate utf8mb4_bin;
mysql> create user zabbix@localhost identified by 'password';
mysql> grant all privileges on zabbix.* to zabbix@localhost;
mysql> set global log_bin_trust_function_creators = 1;
mysql> quit;
> zcat /usr/share/zabbix-sql-scripts/mysql/server.sql.gz | mysql --default-character-set=utf8mb4 -uzabbix -p zabbix

# Disable log_bin_trust_function_creators option after importing database schema.

> mysql -uroot -p
password
mysql> set global log_bin_trust_function_creators = 0;
mysql> quit;

Database

Remote PostgreSQL

Zabbix can be configured to use a remote PostgreSQL database. Replace your PostgreSQL server hostname (-h), username (-U), and password in the following command. Use same region ECS and RDS for better performance.

> sudo apt install postgresql-client
> zcat /usr/share/zabbix-sql-scripts/postgresql/server.sql.gz | PGPASSWORD='********' psql -h ********.pg.rds.com -U zabbixuser -d zabbixdb

MariaDB

> sudo apt install mariadb-server -y
> sudo systemctl start mariadb
> sudo systemctl enable mariadb

Remote MySQL Server

> sudo apt install mysql-client -y
> zcat /usr/share/zabbix-sql-scripts/mysql/server.sql.gz | \
mysql --default-character-set=utf8mb4 -h xxxxxxx.mysql.rds.aliyuncs.com -uzabbix -p zabbix

Local MySQL Server

> sudo apt install mysql-server -y
> sudo systemctl start mysql
> sudo systemctl enable mysql

> mysql -uroot -p
password
mysql> create database zabbix character set utf8mb4 collate utf8mb4_bin;
mysql> create user zabbix@localhost identified by 'password';
mysql> grant all privileges on zabbix.* to zabbix@localhost;
mysql> set global log_bin_trust_function_creators = 1;
mysql> quit;
> zcat /usr/share/zabbix-sql-scripts/mysql/server.sql.gz | mysql --default-character-set=utf8mb4 -uzabbix -p zabbix

# Disable log_bin_trust_function_creators option after importing database schema.

> mysql -uroot -p
password
mysql> set global log_bin_trust_function_creators = 0;
mysql> quit;

Configuration

Edit the Zabbix server configuration file.

> sudo nano /etc/zabbix/zabbix_server.conf

Update the following lines:

DBHost=
DBName=zabbix
DBSchema=public # PostgreSQL only
DBUser=zabbix
DBPassword=

Start Zabbix server and agent processes and make it start at system boot.

> sudo systemctl restart zabbix-server zabbix-agent nginx php8.3-fpm
> sudo systemctl enable zabbix-server zabbix-agent nginx php8.3-fpm

PHP

Edit PHP 8.3 PHP-FPM configuration file.

> sudo nano /etc/php/8.3/fpm/php.ini

Modify the following lines:

max_execution_time = 300
memory_limit = 512M
post_max_size = 16M
upload_max_filesize = 2M
max_input_time = 300
date.timezone = "Asia/Shanghai"

Nginx

Remove the default nginx configuration file.

> sudo rm /etc/nginx/sites-enabled/default

Edit file sudo nano /etc/zabbix/nginx.conf uncomment and set 'listen' and 'server_name' directives.

> listen 8080;
> server_name example.com;

> sudo apt install certbot python3-certbot-nginx -y
> sudo certbot --nginx

Test the Nginx configuration and restart the Nginx service.

> nginx -t
> sudo systemctl restart nginx

Setup

Open your browser and navigate to https://zabbix.example.com.

Zabbix Setup

Zabbix Setup

Zabbix Setup

Zabbix Setup

Zabbix Setup

Zabbix Setup

First Login

Default administrator credentials Admin : zabbix.

Zabbix Server Log

You can find the Zabbix server log at /var/log/zabbix/zabbix_server.log.

> tail -F /var/log/zabbix/zabbix_server.log

Zabbix Client

Installation

> sudo -s

Ubuntu 24.04 (Noble):

> wget https://repo.zabbix.com/zabbix/7.0/ubuntu/pool/main/z/zabbix-release/zabbix-release_latest+ubuntu24.04_all.deb
> dpkg -i zabbix-release_latest+ubuntu24.04_all.deb
> apt update

Ubuntu 22.04 (Jammy):

> wget https://repo.zabbix.com/zabbix/7.0/ubuntu/pool/main/z/zabbix-release/zabbix-release_latest+ubuntu22.04_all.deb
> sudo dpkg -i zabbix-release_latest+ubuntu22.04_all.deb
> sudo apt update

Ubuntu ARM64 24.04 (Noble):

> wget https://repo.zabbix.com/zabbix/7.0/ubuntu-arm64/pool/main/z/zabbix-release/zabbix-release_latest+ubuntu24.04_all.deb
> dpkg -i zabbix-release_latest+ubuntu24.04_all.deb
> apt update

Install Agent

> sudo apt install zabbix-agent2

Configure Agent

> sudo nano /etc/zabbix/zabbix_agent2.conf

Adjust the following properties:

  • Server= Write the hostname of your ZABBIX server here
  • ServerActive= Write the hostname of your ZABBIX server here
  • Hostname= Write the hostname of your CURRENT server here

Examples:

Server=127.0.0.1,192.168.1.0/24,::1,2001:db8::/32,zabbix.example.com

Restart the Zabbix agent service and make it start at system boot.

> sudo systemctl restart zabbix-agent2
> sudo systemctl enable zabbix-agent2

Check Zabbix Agent Status:

> sudo systemctl restart zabbix-agent2

Check Zabbix Agent 2 logs:

> tail -f /var/log/zabbix/zabbix_agent2.log

Add Host

Log in to the Zabbix web interface and add the target server as a monitored host:

  1. Go to Configuration > Hosts.
  2. Click Create host.
  3. Fill in the following details:
    • Hostname: Should match the Hostname in the agent configuration.
    • Visible name (optional): Friendly name for the server.
    • Groups: Select a host group (e.g., Linux servers).
    • Agent interfaces: Enter the IP address of the target server.
  4. Click on Templates and link the appropriate template (e.g., Template OS Linux).
  5. Save the configuration.

Uninstall Agent

> sudo systemctl stop zabbix-agent2
> sudo systemctl disable zabbix-agent2
> sudo apt remove --purge zabbix-agent*

Synchronizing state of zabbix-agent.service with SysV service script with /usr/lib/systemd/systemd-sysv-install. Executing: /usr/lib/systemd/systemd-sysv-install disable zabbix-agent2 Removed "/etc/systemd/system/multi-user.target.wants/zabbix-agent2.service".

Remove the config file and logs:

> sudo rm -rf /etc/zabbix/
> sudo rm -rf /var/log/zabbix/
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