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Instale Zabbix 4.2

Zabbix 4.2, que es un sistema de monitoreo de código abierto empresarial.
Es posible monitorear no solo Linux sino también Windows, Solaris, IBM AIX y otros.
[1]
[2]
[3]
[4] Instale algunos otros paquetes necesarios y el repositorio de Zabbix.
# instale desde el repositorio Remi
[root@dlp ~]#

yum –enablerepo=remi-safe -y install php72-php php72-php-mysqlnd php72-php-gd php72-php-xml php72-php-bcmath php72-php-ldap

[root@dlp ~]#

yum -y install http://repo.zabbix.com/zabbix/4.2/rhel/7/x86_64/zabbix-release-4.2-1.el7.noarch.rpm

[root@dlp ~]#

systemctl restart httpd
[5] Instalar Zabbix server.
[root@dlp ~]#

yum -y install zabbix-get zabbix-server-mysql zabbix-web-mysql zabbix-agent
[6] Crear una base de datos para Zabbix.
[root@dlp ~]#

mysql -u root -p
Enter password:
Welcome to the MariaDB monitor.  Commands end with ; or \g.
Your MariaDB connection id is 16
Server version: 10.2.8-MariaDB MariaDB Server

Copyright (c) 2000, 2017, Oracle, MariaDB Corporation Ab and others.

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

MariaDB [(none)]>

create database zabbix;

Query OK, 1 row affected (0.00 sec)

MariaDB [(none)]>

grant all privileges on zabbix.* to zabbix@’localhost’ identified by ‘password’;

Query OK, 0 rows affected (0.00 sec)

MariaDB [(none)]>

grant all privileges on zabbix.* to zabbix@’%’ identified by ‘password’;

Query OK, 0 rows affected (0.00 sec)

MariaDB [(none)]>

flush privileges;

Query OK, 0 rows affected (0.00 sec)

MariaDB [(none)]>

exit

Bye

[root@dlp ~]#

cd /usr/share/doc/zabbix-server-mysql-*/

[root@dlp zabbix-server-mysql-4.2.3]#

gzip -d create.sql.gz

[root@dlp zabbix-server-mysql-4.2.3]#

mysql -u root -p zabbix < create.sql

Enter password:

[7] Configure e inicie Zabbix Server.
[root@dlp ~]#

vi /etc/zabbix/zabbix_server.conf
# linea 92: agregar

DBHost=localhost

# linea 125: agregar DB password para Zabbix
DBPassword=password
# El servidor Zabbix se inicia después del servidor de base de datos de la siguiente manera
# pero si instaló mariadb102-mariadb.service desde
# CentOS Software Collections como este tutorial, necesita agregarlo de la siguiente manera
[root@dlp ~]#

systemctl cat zabbix-server.service

# /usr/lib/systemd/system/zabbix-server.service
[Unit]
Description=Zabbix Server
After=syslog.target
After=network.target
After=mysql.service
After=mysqld.service
After=mariadb.service
After=postgresql.service
…..
…..

[root@dlp ~]#

systemctl edit zabbix-server.service
# create new to add

[Unit]
After=rh-mariadb102-mariadb.service

[root@dlp ~]#

systemctl start zabbix-server

[root@dlp ~]#

systemctl enable zabbix-server
[8] If SELinux is enabled, change policy.
[root@dlp ~]#

setsebool -P zabbix_can_network on

[root@dlp ~]#

setsebool -P httpd_can_connect_zabbix on

[root@dlp ~]#

setsebool -P daemons_enable_cluster_mode on
[root@dlp ~(keystone)]#

vi zabbix_server.te
# create new
module zabbix_server 1.0;

require {
        type zabbix_var_run_t;
        type zabbix_t;
        class sock_file { create unlink };
        class unix_stream_socket connectto;
}

#============= zabbix_t ==============
allow zabbix_t self:unix_stream_socket connectto;
allow zabbix_t zabbix_var_run_t:sock_file { create unlink };

[root@dlp ~(keystone)]#

checkmodule -m -M -o zabbix_server.mod zabbix_server.te

checkmodule: loading policy configuration from zabbix_server.te
checkmodule: policy configuration loaded
checkmodule: writing binary representation (version 17) to zabbix_server.mod
[root@dlp ~(keystone)]#

semodule_package –outfile zabbix_server.pp –module zabbix_server.mod

[root@dlp ~(keystone)]#

semodule -i zabbix_server.pp
[9] If Firewalld is running, allow Zabbix related ports.
[root@dlp ~]#

firewall-cmd –add-service={http,https} –permanent

success
[root@dlp ~]#

firewall-cmd –add-port={10051/tcp,10050/tcp} –permanent

success
[root@dlp ~]#

firewall-cmd –reload

success

[10] Configure and start Zabbix Agent to monitor Zabbix Server itself.
[root@dlp ~]#

vi /etc/zabbix/zabbix_agentd.conf
# line 98: specify Zabbix server

Server=

127.0.0.1
# line 139: specify Zabbix server

ServerActive=

127.0.0.1
# line 150: change to the own hostname

Hostname=

dlp.srv.world

[root@dlp ~]#

systemctl start zabbix-agent

[root@dlp ~]#

systemctl enable zabbix-agent
[11] Change httpd settings like follows.
[root@dlp ~]#

vi /etc/httpd/conf.d/zabbix.conf
# line 10: add access permittion for Zabbix Web frontend if you need
# (by default, All are allowed)
#

Require all granted

Require ip 127.0.0.1 10.0.0.0/24
    # comment out
    #<IfModule mod_php5.c>
        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 always_populate_raw_post_data -1
        # line 20: uncomment and change timezone setting
        php_value date.timezone Asia/Tokyo
    # comment out
    #</IfModule>

[root@dlp ~]#

systemctl restart httpd
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