Installing WordPress 5.3.3 on CentOS 6.10

Step by step of Installing WordPress 5.3.3 on CentOS 6.10.

CentOS 6.10 Initial Configuration

1. Connect to linux console using SSH
   • Login using root username and password
2. Tune SSH configuration
   • vi /etc/ssh/sshd_config
     • add “UseDNS no”
   • service sshd restart
3. Install VMware Tools
   • VM > Install VMware Tools
   • mkdir /mnt/cdrom
   • mount /dev/cdrom /mnt/cdrom
   • cd /tmp
   • tar zxf /mnt/cdrom/VMwareTools-X.X.X-XXXXXXX.tar.gz
   • umount /dev/cdrom
   • cd vmware-tools-distrib
   • ./vmware-install.pl
4. Add new ethernet interfaces (if required)
   • Virtual Machine Settings
     • Add “Network Adapter”
   • cd /etc/sysconfig/network-scripts/
     • uuidgen eth1
     • cp ifcfg-eth0 ifcfg-eth1
     • vi ifcfg-eth1
       • DEVICE=eth1
       • UUID=<from uuidgen>
       • HWADDR=<MAC from Network Adapter Advanced Settings>
       • IPADDR=X.X.X.X
       • PREFIX=XX
       • GATEWAY=X.X.X.X
       • DNS1=X.X.X.X
       • NAME=”System eth1″
     • ifdown eth1 && ifup eth1
   • Repeat for more interfaces (eth2, eth3, eth…)
5. Fix modified interface error (if any)
   • Remove persistent rules for error interface
     
     • vi /etc/udev/rules.d/70-persistent-net.rules
     • Delete line with error interface
       • <…> NAME=”ethX”
     • Re-add network adapter
       • VM > Remove Network Adapter > OK
       • VM > Add Network Adapter > OK
     • Restart network services
       • service network restart
6. Internet connection test
   • service network restart
     • [ OK ]
   • ping 8.8.8.8
     • 64 bytes from X.X.X.X icmp_seq=1 ttl=44 time=16.8 ms
   • ping www.google.com
     • 64 bytes from X.X.X.X icmp_seq=1 ttl=56 time=4.11 ms

Apache with PHP Installation and Configuration

1. Apache with PHP Installation
   • yum -y install httpd php php-mysql
   • service httpd restart
   • chkconfig httpd on
2. Apache with PHP Initial Configuration
   • Show current firewall rules
     • iptables -L -v -n | more
   • Setup firewall “allow HTTP”
     • iptables -L –line-numbers -n
       • iptables -I INPUT 1 -p tcp -m state –state NEW -m tcp –dport 80 -j ACCEPT
       • iptables -D INPUT 1
         iptables -I INPUT 1 -p tcp -d 192.168.201.68 -m state –state NEW -m tcp –dport 80 -j ACCEPT
     • /etc/init.d/iptables save
     • /etc/init.d/iptables reload
   • Create “PHPinfo” script
     • vi /var/www/html/phpinfo.php
       • <?php
       • // Show all information, defaults to INFO_ALL
       • echo(exec(“whoami”));
       • phpinfo();
       • ?>
3. Web server test
   • http://X.X.X.X/
     • Apache 2 Test Page
   • http://X.X.X.X/phpinfo.php
     • <PHP user> PHP Version X.X.X

MySQL Installation and Configuration

1. MySQL installation
   • yum -y install mysql-server
   • service mysqld restart
   • chkconfig mysqld on
2. MySQL initial configuration
   • /usr/bin/mysql_secure_installation
     • Enter current password for root (enter for none): <press_enter>
     • Set root password? [Y/n] Y
     • New password: ******
     • Re-enter new password: ******
     • Remove anonymous users? [Y/n] Y
     • Disallow root login remotely? [Y/n] Y
     • Remove test database and access to it? [Y/n] Y
     • Reload privilege tables now? [Y/n] Y
3. MySQL DB configuration for WordPress
   • mysql -u root -p
     • Enter password: ******
   • CREATE DATABASE <DB_NAME>;
     • SHOW DATABASES;
     • DROP DATABASE <DB_NAME>;
   • CREATE USER <DB_USER>;
     • SELECT User FROM mysql.user;
     • DROP USER <DB_USER>;
   • SET PASSWORD FOR <DB_USER>= PASSWORD(“<DB_USER_PASSWORD>”);
   • GRANT ALL PRIVILEGES ON <DB_NAME>.* TO “<DB_USER>”@”localhost” IDENTIFIED BY ‘<DB_USER_PASSWORD>’;
   • FLUSH PRIVILEGES;
   • exit
4. MySQL DB for WordPress test
   • mysql -u <DB_USER> -p
     • Enter password: ******
     • mysql>
   • SHOW DATABASES;
     • <database pop-up>
   • exit

WordPress Installation and Configuration

1. WordPress installation
   • cd /tmp/
   • wget http://wordpress.org/latest.tar.gz
   • tar -xzvf latest.tar.gz
   • mkdir /var/www/domain/ /var/www/domain/wordpress/
   • cp -r /tmp/wordpress/* /var/www/domain/wordpress/
   • chown -R apache: /var/www/domain/wordpress/
     • Solve “wordpress is unable to access filesystem directly, connection information is required”
2. WordPress configuration
   • cd /var/www/domain/wordpress/
   • cp wp-config-sample.php wp-config.php
   • vi wp-config.php
     • define(‘AUTOMATIC_UPDATER_DISABLED’, true);
     • define(‘DB_NAME’, ‘<DB_NAME>’);
     • define(‘DB_USER’, ‘<DB_USER>’);
     • define(‘DB_PASSWORD’, ‘<DB_USER_PASSWORD>’);
   • Edit HTTPD config “vi /etc/httpd/conf/httpd.conf”
     • <Directory />
     • Options FollowSymLinks
     • AllowOverride All
     • </Directory>
   • Add HTTPD config “vi /etc/httpd/conf/httpd.conf”
     • NameVirtualHost A.B.C.D:80
     • <VirtualHost A.B.C.D:80>
     • ServerAdmin admin@domain.com
     • DocumentRoot /var/www/domain/wordpress/
     • ServerName www.domain.com
     • ErrorLog logs/www.domain.com-error_log
     • CustomLog logs/www.domain.com-access_log common
     • </VirtualHost>
   • service httpd reload
3. WordPress test
   • http://A.B.C.D/
     • Redirected to WP Admin Initial Page
   • http://A.B.C.D/wp-admin/install.php