axelf

Steps

1. Init local git repository (remember to create .gitginore with wp-config.php before staging anything)
2. Configure SSH-key access to server with git [https://help.github.com/articles/generating-a-new-ssh-key-and-adding-it-to-the-ssh-agent/, https://help.ubuntu.com/community/SSH/OpenSSH/Keys#Transfer_Client_Key_to_Host]
3. Init a bare repo on the server git init && git config core.bare true
4. Create a new post-receive hook with nano .git/hooks/post-receive (content see below!)
5. Execute chmod 755 post-receive on the script
6. Add remote to local repository git remote add staging user-name@your-domain.com:www/your-website
7. Try pushing git push staging master
8. Check if everything works as expected.
9. Add a .htaccess to the .git directory with content: deny from all

axelf

<?php

/**
 * GitHub webhook handler template.
 * 
 * @see  https://developer.github.com/webhooks/
 * @author  Miloslav Hůla (https://github.com/milo)
 */

$hookSecret = 's.e.c.r.e.t';  # set NULL to disable check

axelf

<IfModule mod_expires.c>

    ExpiresActive on
    ExpiresDefault                                      "access plus 1 month"

  # CSS
    ExpiresByType text/css                              "access plus 1 year"

  # Data interchange
    ExpiresByType application/atom+xml                  "access plus 1 hour"