# Connecting through Proxy

Description of Proxy connection using Tera Term

## Prerequisite

Proxy is a technology which can be used to connect to outside where Internet environment and LAN are separated as shown in the following figure. However, a user may be not able to connect to the outside network because your gateway can not support the NAT.

There are various types of Proxy for this purpose. When a user uses the TTProxy plug-in, Tera Term supports the following types of Proxy

- HTTP (*)
- TELNET(for telnet)
- SOCKS4
- SOCKS5

## How to configure

### Setup procedure

To configure, select [Setup] menu, then choose [Proxy].

Then [Proxy Setup] dialog will appear. Specify the type of proxy in [Type], Hostname (or IP address) of Proxy server in [Hostname], Proxy port number in [Port number] and click [OK]. [Username] and [Password] can be used only when Proxy needs an authentication.

Now, you are ready - try to connect.

## Notice of HTTP proxy using

A user may be not able to connect the following type because basically the HTTP proxy server processes the HTTP request.

- No HTTP and HTTPS.
- Port number is not 80 and 443.
- Port number is not 443 by using CONNECT method.

A use can not connect through the proxy to the TELNET and SSH server because these connections apply to above conditions.