How to make a proxy server

[memov89]

Does anyone know how to amke a proxy server and allows you to use it only if you login.

[Make]

Does anyone know how to amke a proxy server and allows you to use it only if you login.

You have some software that can configure your server to act as proxy as analogx, FreeProxy from Hand-Crafted Software, CC Proxy Server etcetc...
You can try some of them to see of it is what you would like to have.

If you have website and would like to set is as proxy server then you can use php or cgi script (both are free and easy to install) where you website should act as proxy server. If you would like to protect it with login then use .htaccess.