[timohei.net] Installing Zabbix 6.0 LTS on Ubuntu 22.04 LTS

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Installing Zabbix 6.0 LTS on Ubuntu 22.04 LTS

The installation instructions given here a valid for Zabbix 6.0 LTS, running on Ubuntu 22.04 LTS. You can find installation instructions for all the supproted platforms on the Download and install Zabbix page.

When a command requires elevated privileges, it is shown in this guide with the hashtag prompt: # apt update
One way to run a command with elevated privileges is by using the sudo command: $ sudo apt update

Install MySQL server

Update repositories

To install the latest version, update the repositories first:

# apt update
⋮
All packages are up to date.

Install the server

# apt install mysql-server
⋮
mysqld will log errors to /var/log/mysql/error.log
mysqld is running as pid 55555
⋮
Setting up mysql-server
⋮

Check status of the server

# service mysql status
⋮
     Active: active (running) since Fri 2023-05-05 13:21:16 EEST; 8min ago
⋮
     Status: "Server is operational"
⋮

If the server does not seem to be running properly, you can start it manually:

# service mysql restart

If needed, the server can be stopped by replacing restart with stop in the command above.

Check status of the network

# ss -tap | grep mysql
LISTEN 0  70   127.0.0.1:33060  0.0.0.0:* users:(("mysqld",pid=66666,fd=21))
LISTEN 0  151  127.0.0.1:mysql  0.0.0.0:* users:(("mysqld",pid=66666,fd=23))

Install Apache webserver

Update repositories

To install the latest version, update the repositories first:

# apt update
⋮
All packages are up to date.

Install the server

Note the number 2 at the end of the name of the package!

# apt install apache2
⋮

Check status of the server

# service apache2 status
⋮
     Active: active (running) since Fri 2023-05-05 13:39:17 EEST; 7min ago
⋮

If the server does not seem to be running properly, you can start it manually:

# service apache2 restart

If needed, the server can be stopped by replacing restart with stop in the command above. Note, that when you have made changes to apache2 configuration you may issue command service apache2 reload for them to take effect without having to restart the service.

Check status of the network

# ss -tap | grep apache2
LISTEN 0  511  *:http  *:*  users:(("apache2",pid=77777,fd=4),
                                    ("apache2",pid=77776,fd=4),
                                      ("apache2",pid=77775,fd=4))

Check the addresses of the web server

# hostname -I
192.168.1.125 192.168.1.105

In my example I got the IP addresses of the WLAN and Ethernet ports of my laptop into which I installed Apache web server.

Check that the web server is working

Open a browser either on the same computer on which you installed the server, or another computer in the same subnet. Type in one of the IP addresses you got in response to the hostname -I command. The default Apache2 page should show up:

Install Zabbix

Get and install Zabbix

# wget https://repo.zabbix.com/zabbix/6.4/ubuntu/pool/main/z/...
...zabbix-release/zabbix-release_6.4-1+ubuntu22.04_all.deb
# dpkg -i zabbix-release_6.4-1+ubuntu22.04_all.deb

Update repositories

To install the latest version, update the repositories first:

# apt update
⋮
All packages are up to date.

Install Zabbix server, frontend, agent

# apt install zabbix-server-mysql ␣ zabbix-frontend-php ␣ zabbix-apache-conf ␣ ...
                                    ...zabbix-sql-scripts ␣ zabbix-agent
⋮
Setting up zabbix-apache-conf (1:6.4.2-1+ubuntu22.04) ...
Enabling conf zabbix.
To activate the new configuration, you need to run:
  systemctl reload apache2
⋮

Reload Apache

# systemctl reload apache2

Create initial database

Check that the database server is up and running:

# service mysql status
⋮
   Active: active (running) since Mon 2023-05-15 10:01:37 EEST; 5h 12min ago
 Main PID: 877 (mysqld)
   Status: "Server is operational"
⋮

Run the following command on a terminal of your database host, followed by MySQL commands shown below. Create a new zabbix database user password and store it in a safe place.

# mysql -uroot -p
Enter password: root-password-for-mysql
mysql> create database zabbix character set utf8mb4 collate utf8mb4_bin;
Query OK, 1 row affected (0,02 sec)
mysql> create user zabbix@localhost identified by 'zabbix-database-user-password';
Query OK, 0 rows affected (0,11 sec)
mysql> grant all privileges on zabbix.* to zabbix@localhost;
Query OK, 0 rows affected (0,02 sec)
mysql> set global log_bin_trust_function_creators = 1;
Query OK, 0 rows affected (0,01 sec)
mysql> flush privileges;
Query OK, 0 rows affected (0,02 sec)
mysql> quit;
Bye

On Zabbix server host import, initial schema and data. Type in the following command on a single line. You will be prompted to enter your newly created password.

This will take several minutes.

# zcat /usr/share/zabbix-sql-scripts/mysql/server.sql.gz | ...
                ... mysql --default-character-set=utf8mb4 -uzabbix -p zabbix
Enter password: zabbix-database-user-password

Disable log_bin_trust_function_creators option after importing database schema.

# mysql -uroot -p
Enter password: root-password-for-mysql
mysql> set global log_bin_trust_function_creators = 0;
Query OK, 0 rows affected (0,00 sec)
mysql> quit;

Configure the database for Zabbix server

Edit file /etc/zabbix/zabbix_server.conf:

# nano /etc/zabbix/zabbix_server.conf

Find the line containing the parameter DBPassword and change it as shown below. Remember to remove # at the beginning of the line!

DBPassword=zabbix-database-user-password

Start Zabbix server, agent and web server processes

Start Zabbix server, agent and web server processes and make them start at system boot.

# systemctl restart zabbix-server zabbix-agent apache2
# systemctl enable zabbix-server zabbix-agent apache2
Synchronizing state of zabbix-server.service with SysV service script with
                                             /lib/systemd/systemd-sysv-install.
Executing: /lib/systemd/systemd-sysv-install enable zabbix-server
Synchronizing state of zabbix-agent.service with SysV service script with
                                             /lib/systemd/systemd-sysv-install.
Executing: /lib/systemd/systemd-sysv-install enable zabbix-agent
Synchronizing state of apache2.service with SysV service script with
                                             /lib/systemd/systemd-sysv-install.
Executing: /lib/systemd/systemd-sysv-install enable apache2
Created symlink /etc/systemd/system/multi-user.target.wants/zabbix-server.service →
                                             /lib/systemd/system/zabbix-server.service.

Create Zabbix configuration file

Create the Zabbix configuration file using your Zabbix server's web user interface at address https://your.server.addr/zabbix. All the major browsers are supported.

Create configuration file filling in the fields. Download file zabbix.conf.php and save it to Zabbix directory /etc/zabbix/. In the same directory there is already a file called zabbix_server.conf. Do not edit this file.

Run Zabbix

Restart Zabbix with command

# systemctl restart zabbix-server

you can find Zabbix log file zabbix_server.log in /var/log/zabbix-server. You can monitor the log with

# cd /var/log/zabbix-server
# tail -f zabbix_server.log
3741187:20230411:212917.295 server #28 started [alerter #2]
3741188:20230411:212917.296 server #29 started [alerter #3]
3741193:20230411:212917.302 server #30 started [preprocessing manager #1]
3741198:20230411:212917.302 server #35 started [lld worker #1]
3741197:20230411:212917.303 server #34 started [lld manager #1]
3741199:20230411:212917.303 server #36 started [lld worker #2]
3741200:20230411:212917.304 server #37 started [alert syncer #1]
3741195:20230411:212917.402 server #32 started [preprocessing worker #2]
3741196:20230411:212917.402 server #33 started [preprocessing worker #3]
3741194:20230411:212917.403 server #31 started [preprocessing worker #1]

Quit the command by pressing ctrl-C.

Start using Zabbix

Go to Zabbix dashboard at https://your.server.addr/zabbix.

Install agent

# apt install zabbix-agent

Updated 16.5.2023

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