Super detailed steps to install zabbix3.0 on centos7

Preface

Recently, part of the company's business has been relocated to the computer room. In order to more conveniently monitor and manage host resources, it was decided to launch the zabbix monitoring platform. This article mainly introduces the steps of installing zabbix3.0 on centos7. Let's take a look at the detailed introduction.

Why monitor

When needed, remind us in advance that there is a problem with the server

When a problem occurs, you can find the root cause

Website/Server Availability

Pre-installation preparation

1.0 System time synchronization added in crontab

#crontab -l
00 00 * * * /usr/sbin/ntpdate -u xxxx #Select ntp server #systemctl restart crond

1.1 Install dependency packages:

yum -y install wget net-snmp-devel net-snmp-utils OpenIPMI-devel httpd openssl-devel java lrzsz fping-devel libcurl-devel perl-DBI pcre-devel libxml2 libxml2-devel mysql-devel gcc php php-bcmath php-gd php-xml php-mbstring php-ldap php-mysql.x86_64 php-pear php-xmlrpc net-tools wget vim-enhanced

Possible fault problem: Cannot find a valid baseurl for repo: base/7/x86_64

Solution: Modify DNS

1.2 Turn off the firewall:

systemctl stop firewalld.service
systemctl disable firewalld.service

You need to turn off selinux. You must turn it off. Turning on selinux will cause a series of problems, and even the discovery function of zabbix cannot be used normally.

sed -i "s/SELINUX=enforcing/SELINUX=disabled/g" /etc/selinux/config

Confirm whether the modification is successful

grep SELINUX /etc/selinux/config

Then restart the system.

reboot

2. Install zabbix server 3.0

1.0 Building a lamp environment

Before installing zabbix server 3.0 on centos7, we first build the lamp environment required by zabbix.

Download the latest yum source as follows:

wget -P /etc/yum.repos.d http://mirrors.aliyun.com/repo/Centos-7.repo 

Before starting the installation, it is also necessary to explain that the mysql that comes with centos7 is mariadb, which we can view with the following command:

yum search mysql|tac 

Now start installing the lamp environment, use the following command:

yum -y install mariadb mariadb-server php php-mysql httpd 

From the above picture, we can clearly see that centos7 installs php5.4, httpd2.4 and maradb5.5 by default, which fully meets the software version requirements of zabbix3.0. After lamp is installed, let's now configure the MySQL database.

Set MySQL to start automatically at boot time and start MySQL using the following command:

systemctl enable mariadb.service
systemctl start mariadb.service 

Initialize the mysql database and configure the root user password. Use the following command:

mysql_secure_installation 

Note: In the above picture, at Enter current password for root, we can just press the Enter key. Because the default root user password of mysql on centos7 is empty. The above picture mainly configures the password for the root user and refreshes the relevant permissions. (The password is set to 123456, only for experimental use, customized in production environment) Remove anonymous users? Delete anonymous users? Disallow root login remotely? Disallow root login remotely Remove test database and access to it? Delete test database and access it Reload privilege tables now? Reload privilege tables The above figure mainly configures anonymous users, test users, and root users' remote connections and other related configurations.

After mysql is initialized, we will now create the zabbix database and its user using the following command:

mysql -uroot -pPioneerservice@3306 -e "create database zabbix default character set utf8 collate utf8_bin;"
mysql -uroot -pPioneerservice@3306 -e "grant all privileges on zabbix.* to zabbix@localhost identified by 'zabbix'" 

Now let's test whether the zabbix user we just created can connect to the MySQL database, as follows:

[root@zabbix ~]# mysql -uzabbix -pzabbix 
MariaDB [(none)]> show databases;
MariaDB [(none)]> quit 

From the above picture, we can clearly see that the zabbix user can connect to the database normally.

Start Apache and open port 80 as follows:

[root@zabbix ~]# systemctl start httpd.service
[root@zabbix ~]# netstat -ltun 

At this point, the lamp environment has been fully built.

1.1 Install zabbix server 3.0

Install the EPEL source and yum source of zabbix required for zabbix3.0 as follows:

rpm -ivh http://repo.zabbix.com/zabbix/3.2/rhel/7/x86_64/zabbix-release-3.2-1.el7.noarch.rpm 3.2 version rpm -ivh http://repo.zabbix.com/zabbix/3.4/rhel/7/x86_64/zabbix-release-3.4-2.el7.noarch.rpm 3.4 version 

After the above installation is complete, let's now officially install zabbix3.0 using the following command:

yum -y install zabbix-server-mysql zabbix-web-mysql zabbix-get 

From the above picture, we can clearly see that the current zabbix server is version 3.2.11.

After the above installation is complete, we will now start the configuration of zabbix.

Import the zabbix database structure as follows:

[root@zabbix ~]# cd /usr/share/doc/zabbix-server-mysql-3.2.11/
[root@zabbix zabbix-server-mysql-3.2.11]# zcat create.sql.gz | mysql -uroot -pDe123456 zabbix

After the database is imported, let's modify the configuration file of zabbix server as follows:

[root@zabbix ~]# vim /etc/zabbix/zabbix_server.conf
LogFile=/var/log/zabbix/zabbix_server.log
LogFileSize=0
PidFile=/var/run/zabbix/zabbix_server.pid
DBHost=localhost
DBName=zabbix
DBUser=zabbix
DBPassword=zabbix
SNMPTrapperFile=/var/log/snmptrap/snmptrap.log
Timeout=4
AlertScriptsPath=/usr/lib/zabbix/alertscripts
ExternalScripts=/usr/lib/zabbix/externalscripts
LogSlowQueries=3000

In the above configuration file, we only need to pay attention to DBHost, DBName, DBUser, and DBPassword.

These items are the parameters for configuring Zabbix server to connect to the MySQL database.

After the above modifications are completed, let's modify the zabbix.conf file. as follows:

vim /etc/httpd/conf.d/zabbix.conf
Alias ​​/zabbix /usr/share/zabbix
Options FollowSymLinks
AllowOverride None
Require all granted
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 always_populate_raw_post_data -1
 php_value date.timezone Asia/Chongqing

Before modification:

After modification:

Among them, php_value date.timezone Asia/Chongqing mainly defines the time zone of PHP.

After the above modifications are completed, we add zabbix-server to the boot and start zabbix-server as follows:

systemctl start zabbix-server.service
systemctl enable zabbix-server.service

Finally restart apache as follows:

[root@zabbix ~]# systemctl restart httpd.service

So far, zabbix3.0 has been installed.

Summarize

The above is the full content of this article. I hope that the content of this article will have certain reference learning value for your study or work. If you have any questions, you can leave a message to communicate. Thank you for your support for 123WORDPRESS.COM.