We all know that you can use nginx trans-generation capabilities to achieve cross-border access network，but，This approach has a lot of constraints，For example, it is difficult to achieve login authentication，For example, the need for a separate forwarding module compiler to do，For example, you need to have a valid signature ssl certificates, etc.。
this time，We introduce an additional artifact SNI Proxy，With dnsmasq can be achieved with sniproxy[……]
Generally, we Internet，It is to plug the Internet cable，Dial need at most。However, in the enterprise network application environment may have more complex，This is a general home network can not understand。So，Acting this feature came into being。
Agent name suggests is your place to visit you can not access resources。
Defined on Wikipedia is this：
Agent (English：Proxy），Also known as the Network Agent，It is a special network services，[……]