International Alliance Privacy Services

Secure Shell or SSH is a network protocol that allows data to be exchanged over a secure channel between two computers. Encryption provides confidentiality and integrity of data. SSH uses public-key cryptography to authenticate the remote computer and allow the remote computer to authenticate the user, if necessary.

An SSH tunnel is an encrypted network tunnel created through an SSH connection. SSH is frequently used to tunnel insecure traffic over the Internet in a secure way. In order to create an SSH tunnel, the SSH client is configured to forward a specified remote port and IP address (that is accessible on the SSH server) to a port on the local machine. Once the SSH connection has been established, the user can connect to the specified local port to access the network services that would otherwise only be available at the remote IP address and port.

SSH tunnels provide a means to bypass firewalls that prohibit certain Internet services provided that outgoing connections on port 22 are allowed. For example, many institutions prohibit users from accessing Internet web pages (port 80) directly without first being examined by a proxy/filter device. However, if users are able to connect to an external SSH server, it is possible for them to create an ssh tunnel to forward port 80 on an external web server to a given port (probably port 80) on their local machine.

More commonly, users may setup their own proxy server at home, using free software such as Squid, and construct a tunnel from their workstation to the proxy. Next, by configuring their browser to use localhost rather than the corporate proxy server, users can access any web page they want, bypassing their company's filters and firewalls.

Another HTTP-based tunneling method uses the HTTP CONNECT method/command. This command tells an HTTP proxy to make a TCP connection to the specified server:port, and relay data back and forth between that connection and the client connection. Therefore, for security reasons, CONNECT-capable HTTP proxies commonly restrict access to the CONNECT method to accessing TLS/SSL-based HTTPS services only.

Server locations available for SSH Proxy Services: United States, United Kingdom, Germany, Malaysia, Czech Republic, The Netherlands, and Hong Kong. We can issue you a completely anonymous ip address from any of these locations.