Zabbix 5.2 for CentOS8

MySQL インストール

dnf -y module install mysql
systemctl enable mysqld
systemctl start mysqld
mysql_secure_installation

Securing the MySQL server deployment.

Connecting to MySQL using a blank password.

VALIDATE PASSWORD COMPONENT can be used to test passwords
and improve security. It checks the strength of password
and allows the users to set only those passwords which are
secure enough. Would you like to setup VALIDATE PASSWORD component?

Press y|Y for Yes, any other key for No: y

There are three levels of password validation policy:

LOW    Length >= 8
MEDIUM Length >= 8, numeric, mixed case, and special characters
STRONG Length >= 8, numeric, mixed case, special characters and dictionary                  file

Please enter 0 = LOW, 1 = MEDIUM and 2 = STRONG: 0
Please set the password for root here.

New password:

Re-enter new password:

Estimated strength of the password: 50
Do you wish to continue with the password provided?(Press y|Y for Yes, any other key for No) : y
By default, a MySQL installation has an anonymous user,
allowing anyone to log into MySQL without having to have
a user account created for them. This is intended only for
testing, and to make the installation go a bit smoother.
You should remove them before moving into a production
environment.

Remove anonymous users? (Press y|Y for Yes, any other key for No) : y
Success.


Normally, root should only be allowed to connect from
'localhost'. This ensures that someone cannot guess at
the root password from the network.

Disallow root login remotely? (Press y|Y for Yes, any other key for No) : y
Success.

By default, MySQL comes with a database named 'test' that
anyone can access. This is also intended only for testing,
and should be removed before moving into a production
environment.


Remove test database and access to it? (Press y|Y for Yes, any other key for No) : y
 - Dropping test database...
Success.

 - Removing privileges on test database...
Success.

Reloading the privilege tables will ensure that all changes
made so far will take effect immediately.

Reload privilege tables now? (Press y|Y for Yes, any other key for No) : y
Success.

All done!

Apache PHP インストール

dnf -y module install httpd php
systemctl enable httpd
systemctl start httpd
systemctl enable php-fpm
systemctl start php-fpm

Zabbix インストール

dnf -y install https://repo.zabbix.com/zabbix/5.2/rhel/8/x86_64/zabbix-release-5.2-1.el8.noarch.rpm
dnf -y install zabbix-server-mysql zabbix-web-japanese zabbix-apache-conf

PHP 設定変更

vi /etc/php-fpm.d/zabbix.conf

/etc/php-fpm.d/zabbix.conf

[zabbix]
user = apache
group = apache
listen = /run/php-fpm/zabbix.sock
listen.acl_users = apache,nginx
listen.allowed_clients = 127.0.0.1
pm = dynamic
pm.max_children = 50
pm.start_servers = 5
pm.min_spare_servers = 5
pm.max_spare_servers = 35
php_value[session.save_handler] = files
php_value[session.save_path]    = /var/lib/php/session
php_value[max_execution_time] = 300
php_value[memory_limit] = 128M
php_value[post_max_size] = 16M
php_value[upload_max_filesize] = 2M
php_value[max_input_time] = 300
php_value[max_input_vars] = 10000
php_value[date.timezone] = Asia/Tokyo

Zabbix Server 設定変更

vi /etc/zabbix/zabbix_server.conf

/etc/zabbix/zabbix_server.conf

LogFile=/var/log/zabbix/zabbix_server.log
LogFileSize=0
PidFile=/var/run/zabbix/zabbix_server.pid
SocketDir=/var/run/zabbix
DBName=zabbix
DBUser=zabbix
DBPassword=パスワード
SNMPTrapperFile=/var/log/snmptrap/snmptrap.log
Timeout=4
LogSlowQueries=3000
StatsAllowedIP=127.0.0.1

MySQL 設定変更

mysql -u root -p パスワード

CREATE DATABASE zabbix character set utf8 collate utf8_bin;
CREATE USER zabbix@localhost IDENTIFIED BY 'パスワード';
GRANT ALL ON zabbix.* TO zabbix@localhost;

Zabbix用のテーブル作成

zcat /usr/share/doc/zabbix-server-mysql/create.sql.gz | mysql -u zabbix -p パスワード

 Zabbix Server 起動

systemctl enable zabbix-server
systemctl start zabbix-server

Zabbix Agent インストール

dnf -y install zabbix-agent2

Zabbix Agent 設定変更

vi /etc/zabbix/zabbix_agent2.conf

/etc/zabbix/zabbix_agent2.conf

PidFile=/var/run/zabbix/zabbix_agent2.pid
LogFile=/var/log/zabbix/zabbix_agent2.log
LogFileSize=0
Server=127.0.0.1
ServerActive=127.0.0.1
Hostname=Zabbix server
Include=/etc/zabbix/zabbix_agent2.d/*.conf
ControlSocket=/tmp/agent.sock

Zabbix Agent 起動

systemctl enable zabbix-server
systemctl start zabbix-server
systemctl enable zabbix-agent2
systemctl start zabbix-agent2