Zabbix is a mature and effortless enterprise-class open source monitoring solution for network monitoring and application monitoring of millions of metrics. This post is going to install zabbix4.0 into a brand new Centos7.x system environment, including default installation of mariab5.5, php5.4, apache2.4 as well.
All configurations are almost default, the ultimate goal is to install the zabbix system in a fastest way.
Notes: Before you can install Zabbix, you might want to exclude Zabbix from SELinux disable SELinux and Firewall.
Note: I have used Google Cloud Platform free tier vm (1vCPU, 614MB Memory and 10G Hard Drive) to complete this installation without problem. If you have bigger space and large memory, that would be better.
1. Install the EPEL (Extra Packages for Enterprise Linux) source
Create a zabbix database (default password is empty):
mysql -uroot -p
MariaDB [(none)]> create database zabbix character set utf8 collate utf8_bin;
MariaDB [(none)]> grant all privileges on zabbix.* to [email protected] identified by ‘zabbixdbpassword’;
MariaDB [(none)]> quit
After setting the password, it will be the next step, just like the normal compilation and installation of zabbix. The default account Admin password is zabbix.
Here are screenshots to configure your frontend Zabbix server:
Another YouTube Video to install Zabbix Virtual Appliance:
Issue 1 : You might get one error to say “Zabbix server is running” but value is no. Basically, zabbix server is not started properly.
From the /var/log/zabbix/zabbix_server.log, you will find following information:
[[email protected] zabbix]# tail zabbix_server.log
5828:20191019:195018.548 server #20 started [trapper #1]
5830:20191019:195018.551 server #22 started [trapper #3]
5831:20191019:195018.554 server #23 started [trapper #4]
5838:20191019:195018.556 server #30 started [preprocessing manager #1] 5838:20191019:195018.556 cannot start preprocessing service: Cannot bind socket to “/var/run/zabbix/zabbix_server_preprocessing.sock”:  Permission denied.
5804:20191019:195018.558 One child process died (PID:5838,exitcode/signal:1). Exiting …
zabbix_server : Error waiting for process with PID 5838:  No child processes
5804:20191019:195018.632 syncing trend data…
5804:20191019:195018.632 syncing trend data done
5804:20191019:195018.632 Zabbix Server stopped. Zabbix 4.0.13 (revision 4e383bb6c5).
Usually it is relating to selinux status. By default it has been enabled and it will give Zabbix service a problem to start.
You can temporarily change the SELinux mode from targeted to permissive with the following command:
sudo setenforce 0
However, this change will be valid for the current runtime session only.
To permanently disable SELinux on your CentOS 7 system, follow the steps below:
Open the /etc/selinux/config file and set the SELINUX mod to disabled:
# This file controls the state of SELinux on the system.
# SELINUX= can take one of these three values:
# enforcing - SELinux security policy is enforced.
# permissive - SELinux prints warnings instead of enforcing.
# disabled - No SELinux policy is loaded.
# SELINUXTYPE= can take one of these two values:
# targeted - Targeted processes are protected,
# mls - Multi Level Security protection.
Save the file and reboot your CentOS system with:
sudo shutdown -r now
Once the system boots up, verify the change with the sestatus command: