Include documentation in the application

doc/centos-installation.markdown

@@ -0,0 +1,77 @@
+Centos Installation
+===================
+
+Centos 7
+--------
+
+Install PHP and Apache:
+
+```bash
+yum install -y php php-mbstring php-pdo php-gd unzip wget
+```
+
+By default Centos 7 use PHP 5.4.16 and Apache 2.4.6.
+
+Restart Apache:
+
+```bash
+systemctl restart httpd.service
+```
+
+Install Kanboard:
+
+```bash
+cd /var/www/html
+wget http://kanboard.net/kanboard-latest.zip
+unzip kanboard-latest.zip
+chown -R apache:apache kanboard/data
+rm kanboard-latest.zip
+```
+
+If SELinux is enabled, be sure that the Apache user can write to the directory data:
+
+```bash
+chcon -R -t httpd_sys_content_rw_t /var/www/html/kanboard/data
+```
+
+Be sure to configure your server to allow Kanboard to send emails and make external network requests, by example with SELinux:
+
+```bash
+setsebool -P httpd_can_network_connect=1
+```
+
+Allowing external connections is necessary if you use LDAP, SMTP, Webhooks or any third-party integrations.
+
+Centos 6.x
+----------
+
+Install PHP and Apache:
+
+```bash
+yum install -y php php-mbstring php-pdo php-gd unzip wget
+```
+
+By default Centos 6.5 use PHP 5.3.3 and Apache 2.2.15.
+
+Enable short tags:
+
+- Edit the file `/etc/php.ini`
+- Change the line `short_open_tag = On`
+
+Restart Apache:
+
+```bash
+service httpd restart
+```
+
+Install Kanboard:
+
+```bash
+cd /var/www/html
+wget http://kanboard.net/kanboard-latest.zip
+unzip kanboard-latest.zip
+chown -R apache:apache kanboard/data
+rm kanboard-latest.zip
+```
+
+Go to `http://your_server/kanboard/`.