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Help for TCP tunneling



Hi!

According to the following described in 
http://info.cern.ch/hypertext/WWW/FAQ/Firewall.html
---
TCP tunneling through firewalls

There are two ways.  If you are simply a user with no sympathy from the
guys running the gateway, then you have to use an existing gateway.
Typically, there will be a telnet gateway to which you can telnet which
then allows you to ask politely to be connected to a given remote machine.

It is possible to change way that www clients to a TCP connect to do
all of this for every connection.  The code in in HTTP.c and HTTCP.c
in the libwww library.  This has been done successfully at for example
Xerox PARC ands other places.
--------

Could anybody please give me any examples or hints about how to do that ?
Please email me directly. Thanks.

Vincent 2/24/1995
Email:html%smsdemo@tlrouter.motctl.gov.tw

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