• MySQL Backups: mylvmbackup
• etckeeper
• molly-guard

• CentOS: /etc/systemctrl/httpd: OPTIONS='-D dev'
• htaccess

<IfDefine dev>
        SetEnv DEV 1
</IfDefine>
<IfDefine !dev>
        whatever not for dev
</IfDefine>

• php

            if(isset($_SERVER['DEV'])){
                $dofordev
            }

• RequestHeader unset Proxy early
• https://httpoxy.org/

<If "req('Host') == 'url.de'">
        AuthName "protected"
        AuthType Basic
        AuthUserFile /path/to/.htpasswd
        require valid-user
</If>