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SSH Tectia 
PreviousNextUp[Contents] [Index]

    About This Document >>
    Installing SSH Tectia Server >>
    Getting Started >>
    Configuration >>
    Authentication >>
    Application Tunneling >>
        Incoming and Outgoing Tunnels >>
        Tunneling FTP >>
        Tunneling X11
        Agent Forwarding
        Dynamic Tunneling
    Troubleshooting >>
    Man Pages
    Advanced Options >>
    Log Messages >>

Dynamic Tunneling

Dynamic tunneling is a transparent mechanism available for applications that support the SOCKS4 or SOCKS5 client protocol. Instead of configuring port forwarding from specific ports on the local host to specific ports on the remote server, you can specify a SOCKS server which can be used by the user's applications. Each application is configured in the regular way except that it is configured to use a SOCKS server on a localhost port. The Secure Shell client application opens a port in the localhost and mimics a SOCKS4 and SOCKS5 server for any SOCKS client application.

When the applications connect to services such as IMAP4, POP3, SMTP, HTTP, and FTP, they provide the necessary information to the SOCKS server, which is actually the Secure Shell client mimicking a SOCKS server. The client will use this information in creating port forwarding to the Secure Shell server and relaying the traffic back and forth securely, as with user-specified port forwarding.

For more information, please see the ssh2 man pages.

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