You can set up your own proxy servers through the cPanel interface if your Web hosting company provides proxy server software on their servers, and if your hosting account includes the proxy ...

Your web hosting provider may also charge additional fees, such as setup fees (often waived when signing a contract and paying up-front), domain registration fees, or monthly support fees.

If you're looking for a cPanel/CentOS replacement, Jack Wallen thinks Virtualmin might do the job. He'll show you what the tool has to offer and how to install it on Ubuntu Server.