Requirements: self-hosted client + websocket server

Self-hosted BlaB! WS Pro client and self-hosted websocket server

• A Linux based server (VPS) with Apache/Nginx, PHP5/PHP7 and MySQL/MariaDB installed and in working state.
• Access to that server via SSH as a root user or with sudo privileges.
• PHP shell_exec enabled in php.ini (required to start/stop server, alternative method is available).
• php_mysqli, php_curl & php_fileinfo extensions, php_json extension on PHP5.
• ffmpeg to create thumbnails for voice and video messages.
• Basic knowledge about Linux and some basic terminal skills: running commands, editing files.
• Supported distros: Debian 8 Jessie+ / Ubuntu 16.04+ / CentOS 7+