Installation of Zabbix in Centos 7

Lakshmana

PHP (recursive acronym for PHP: Hypertext Preprocessor) is a widely used open-source general purpose scripting language that is especially suited for web development and can be embedded into HTML.

Install PHP with following command:

sudo yum install php php-mysql php-gd php-pear -y

scottalanmiller

PHP actually standards of Personal Home Page which makes little sense, bit it was what PHP was created as. The acronym you mention is something new that people have tried to change it to, but PHP was created as Personal Home Page. As a true acronym they can't exactly change it later

Lakshmana

The PHP installed by the following command

sudo yum install php php-mysql php-gd php-pear -y

Test PHP:
Create a sample “testphp.php” file in Apache document root folder and append the lines as shown below:

vi /var/www/html/testphp.php
Add the following lines.

<?php
phpinfo();
?>
Restart httpd service:

systemctl restart httpd

Lakshmana

Navigate to http://server-ip-address/testphp.php. It will display all the details about php such as version, build date and commands etc.

phpinfo() - Mozilla Firefox_002

If you want to install all php modules, enter the command yum install php* -y and restart the httpd service. To verify for the modules, open web browser and navigate to http://server-ip-address/testphp.php. You will then see all php modules.

Lakshmana

phpMyAdmin is a free open-source web interface tool used to manage your MySQL databases. By default phpMyAdmin will not be not found in CentOS/RHEL/Scientific Linux official repositories. So let us install it from EPEL repository.

To add EPEL repository, just follow the link.

Install EPEL Repository on RHEL/CentOS/Scientific Linux 7
Now, install phpMyAdmin:

sudo yum install phpmyadmin -y
Configure phpMyAdmin
By default, phpMyAdmin can only be accessed from the localhost itself. To make it to accessible globally, do the following steps.

Edit the phpmyadmin.conf file:

vi /etc/httpd/conf.d/phpMyAdmin.conf

Lakshmana

In the above path Why I have to put hashes in the configuration files?

scottalanmiller

Hashes denote comments.

Lakshmana

Find and comment the whole /<Directory> section and add the lines as shown below:

[...]
Alias /phpMyAdmin /usr/share/phpMyAdmin
Alias /phpmyadmin /usr/share/phpMyAdmin

Comment the following Section

#<Directory /usr/share/phpMyAdmin/>

<IfModule mod_authz_core.c>

# Apache 2.4

<RequireAny>

Require ip 127.0.0.1

Require ip ::1

</RequireAny>

</IfModule>

<IfModule !mod_authz_core.c>

# Apache 2.2

Order Deny,Allow

Deny from All

Allow from 127.0.0.1

Allow from ::1

</IfModule>

#</Directory>

Add the following lines:

<Directory /usr/share/phpMyAdmin/>
Options none
AllowOverride Limit
Require all granted
</Directory>
[...]
Edit “config.inc.php” file and change from “cookie” to “http” to change the authentication in phpMyAdmin:

vi /etc/phpMyAdmin/config.inc.php
Change ‘cookie’ to ‘http’.

[...]
/* Authentication type */
$cfg['Servers'][$i]['auth_type'] = 'http'; // Authentication method (config, http or cookie based)?
[...]
Restart the Apache service:

systemctl restart httpd

Lakshmana

After this step I am unable to login to the Phpadmin page in the browser

Lakshmana

What may be the issue with this?

Lakshmana

Logged in now with proper username and password

Lakshmana

Create MySQL database and user for Zabbix

Login to MariaDB prompt with command:

mysql -u root -p
Create a database called ‘zabbixdb’ and database user called ‘zabbixuser’.

Welcome to the MariaDB monitor. Commands end with ; or \g.
Your MariaDB connection id is 10
Server version: 5.5.41-MariaDB MariaDB Server

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

MariaDB [(none)]> create database zabbixdb character set utf8;
Query OK, 1 row affected (0.05 sec)

MariaDB [(none)]> grant all privileges on zabbixdb.* to 'zabbixuser'@'localhost' identified by 'password';
Query OK, 0 rows affected (0.21 sec)

MariaDB [(none)]> flush privileges;
Query OK, 0 rows affected (0.00 sec)

MariaDB [(none)]> exit
Bye

Lakshmana

Error comes here??
[lakshmana@dny-lnx-zabbix ~]$ mysql -u zabbixuser -p zabbixdb < /usr/share/doc/zabbix-server-mysql-2.4.5/create/schema.sql
-bash: /usr/share/doc/zabbix-server-mysql-2.4.5/create/schema.sql: No such file or directory

mlnews

Well that password needs to be changed now

scottalanmiller

@Lakshmana said:

[lakshmana@dny-lnx-zabbix ~]$ mysql -u zabbixuser -p zabbixdb < /usr/share/doc/zabbix-server-mysql-2.4.5/create/schema.sql

Well the error tells us that this file does not exist. Have you looked for it yet?

JaredBusch

@scottalanmiller said:

The EPEL is already installed as part of a base install

No it is not.

The default install choice is the minimal package. That has never included EPEL.

Lakshmana

I have verified that the file is present in the path
But the error is coming. Why??

Lakshmana

Whether any issue in the permission of the files.since the files has the following permission

-rw-r--r-- 1 root root 1978341 Aug 10 04:57 images.sql
-rw-r--r-- 1 root root 104816 Aug 10 04:58 schema.sql
-rw-r--r-- 1 root root 972942 Aug 10 13:16 data.sql
drwxr-xr-x 4 root root 4096 Sep 7 12:38 ..

scottalanmiller

@JaredBusch said:

@scottalanmiller said:

The EPEL is already installed as part of a base install

No it is not.

You are missing context. He is on an NTG Lab machine where the base install installs it. It was in the base install handed to him.

scottalanmiller

@Lakshmana said:

I have verified that the file is present in the path
But the error is coming. Why??

How did you verify? I verified on the same box and the file is not there.

file /usr/share/doc/zabbix-server-mysql-2.4.5/create/schema.sql
/usr/share/doc/zabbix-server-mysql-2.4.5/create/schema.sql: cannot open (No such file or directory)