Experience over 10 years.
√ Setting VDS, DS server.
√ Backup servers
√ Transfer sites to another hosting
√ Install and configure Debian, Ubuntu.
√ Setting up proxy sites.
√ DNS, PTR, MX etc
√ Install and configure HTTP / SOCKS proxy servers: 3proxy, squid, etc
√ Web server configuration: Apache, nginx, PHP, PHP-FPM, MySQL.
√ Setting up mail servers with an interface that allows you to manage the server and view mail (SquirrelMail, Roundcube).
√ Setting up Jabber servers Configuring VPN servers (PPTP, OpenVPN) Installing and configuring panels ISP manager, VestaCP, etc.