setup wordpress on centos 7

18 May 2017

steps

  1. setup lamp

         $ sudo yum -y install httpd mariadb-server mariadb php php-mysql php-gd php-xml

  2. setup mariadb

    1. start enable status

       $ sudo systemctl start mariadb
 $ sudo systemctl enable mariadb
 Created symlink from /etc/systemd/system/multi-user.target.wants/mariadb.service to /usr/lib/systemd/system/mariadb.service.
 $ sudo systemctl status mariadb

    2. secure mysql

       $ mysql_secure_installation
 NOTE: RUNNING ALL PARTS OF THIS SCRIPT IS RECOMMENDED FOR ALL MariaDB
       SERVERS IN PRODUCTION USE!  PLEASE READ EACH STEP CAREFULLY!

 In order to log into MariaDB to secure it, we'll need the current
 password for the root user.  If you've just installed MariaDB, and
 you haven't set the root password yet, the password will be blank,
 so you should just press enter here.

 Enter current password for root (enter for none):
 OK, successfully used password, moving on...

 Setting the root password ensures that nobody can log into the MariaDB
 root user without the proper authorisation.

 Set root password? [Y/n] y
 New password:
 Re-enter new password:
 Password updated successfully!
 Reloading privilege tables..
  ... Success!


 By default, a MariaDB installation has an anonymous user, allowing anyone
 to log into MariaDB 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? [Y/n] 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? [Y/n] n
  ... skipping.

 By default, MariaDB 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? [Y/n] 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? [Y/n] y
  ... Success!

 Cleaning up...

 All done!  If you've completed all of the above steps, your MariaDB
 installation should now be secure.

 Thanks for using MariaDB!

    3. create database

       $ mysql -u root -p
 > create database wordpress;
 > create user wordpress@localhost identified by '************';
 > grant all privileges on wordpressdb.* to wordpress@localhost;
 > flush privileges;

  3. setup apache

    1. change apache port

       $ sudo nano /etc/httpd/conf/httpd.conf
 Listen ip:8090
 Listen ip:8092

 $ sudo systemctl status httpd.service -l
 ● httpd.service - The Apache HTTP Server
    Loaded: loaded (/usr/lib/systemd/system/httpd.service; enabled; vendor preset: disabled)
    Active: failed (Result: exit-code) since 四 2017-05-18 13:31:08 CST; 2s ago
      Docs: man:httpd(8)
            man:apachectl(8)
   Process: 29766 ExecStop=/bin/kill -WINCH ${MAINPID} (code=exited, status=1/FAILURE)
   Process: 29763 ExecStart=/usr/sbin/httpd $OPTIONS -DFOREGROUND (code=exited, status=1/FAILURE)
  Main PID: 29763 (code=exited, status=1/FAILURE)

 5月 18 13:31:08 dc systemd[1]: Starting The Apache HTTP Server...
 5月 18 13:31:08 dc httpd[29763]: (13)Permission denied: AH00072: make_sock: could not bind to address 192.168.100.111:8090
 5月 18 13:31:08 dc httpd[29763]: no listening sockets available, shutting down
 5月 18 13:31:08 dc httpd[29763]: AH00015: Unable to open logs
 5月 18 13:31:08 dc systemd[1]: httpd.service: main process exited, code=exited, status=1/FAILURE
 5月 18 13:31:08 dc kill[29766]: kill: cannot find process ""
 5月 18 13:31:08 dc systemd[1]: httpd.service: control process exited, code=exited status=1
 5月 18 13:31:08 dc systemd[1]: Failed to start The Apache HTTP Server.
 5月 18 13:31:08 dc systemd[1]: Unit httpd.service entered failed state.
 5月 18 13:31:08 dc systemd[1]: httpd.service failed.

    2. disable selinux

       $ sudo setenforce 0

  4. setup firewalld

    1. env

       $ hostnamectl
    Static hostname: localhost.localdomain
 Transient hostname: dc
          Icon name: computer-desktop
            Chassis: desktop
         Machine ID: b0b21aa9feba4b27964b91edc0de012b
            Boot ID: acde97bca1734ce3ace7a91a9cb9b875
   Operating System: CentOS Linux 7 (Core)
        CPE OS Name: cpe:/o:centos:centos:7
             Kernel: Linux 3.10.0-514.2.2.el7.x86_64
       Architecture: x86-64

 $ ip addr show | grep inet
 inet 127.0.0.1/8 scope host lo
 inet6 ::1/128 scope host
 inet 192.168.100.111/24 brd 192.168.100.255 scope global eno1
 inet6 fe80::c3aa:7b1a:6561:d450/64 scope link tentative dadfailed
 inet6 fe80::1789:916b:b94f:435b/64 scope link tentative dadfailed
 inet6 fe80::e018:9a79:5f15:c693/64 scope link tentative dadfailed
 inet 192.168.122.1/24 brd 192.168.122.255 scope global virbr0
 inet 172.17.0.1/16 scope global docker0

    2. install firewalld

       $ sudo yum install firewalld -y

    3. stop and mask(not use anymore) iptables

       $ sudo systemctl status iptables
 $ sudo systemctl stop iptables
 $ sudo systemctl mask iptables
 Created symlink from /etc/systemd/system/iptables.service to /dev/null.

    4. enable and start firewalld

       $ sudo systemctl enable firewalld
 $ sudo systemctl restart firewalld
 $ sudo systemctl status firewalld
 ● firewalld.service - firewalld - dynamic firewall daemon
    Loaded: loaded (/usr/lib/systemd/system/firewalld.service; enabled; vendor preset: enabled)
    Active: active (running) since...

    5. zones

       $ firewall-cmd --get-zones
 work drop internal external trusted home dmz public block

 $ firewall-cmd --get-default-zone
 public

 $ firewall-cmd --list-all-zones

    6. add port 8090

       $ firewall-cmd --get-active-zones
 public
     interfaces: eno1

 $ firewall-cmd --zone=public --add-port=8090/tcp --permanent
 success

 $ firewall-cmd --reload
 success
 $ firewall-cmd --list-all

  5. setup wordpress

    1. download

    2. install

       $ unzip wordpress-4.7.5.zip
 $ rsync -avP wordpress /var/www/html/
 $ mkdir /var/www/html/wp-content/uploads
 $ sudo chown -R apache:apache /var/www/html/*

    3. config

       $ cd /var/www/html
 $ cp wp-config-sample.php wp-config.php
 $ nano wp-config.php
 define('DB_NAME', 'wordpress');
 define('DB_USER', 'wordpress');
 define('DB_PASSWORD', 'wordpress');

  6. update wordpress

    1. backup

       $ cd /var/www/html
 $ mkdir worpress474
 $ mv *.php *.md *.txt wp-* wordpress474

    2. install and config

    3. restore themes

       $ cp -r wordpress474/wp-content/themes/roots-nextdatagov wp-content/themes/

references

  1. firewalld

    1. https://www.tecmint.com/configure-firewalld-in-centos-7/

    2. https://stackoverflow.com/questions/24729024/centos-7-open-firewall-port

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