Secure tunneling via HTTP?

From: Bjoern Joergensen (ursus@ursusquietus.com)
Date: 03/27/02


From: ursus@ursusquietus.com (Bjoern Joergensen)
Date: 27 Mar 2002 03:02:26 -0800

I have a very specific problem, that I don't see a solution for. Being
a novice in network security however, I thought I would ask here and
see if somebody can come up with a clever solution.

Our company has a lot of users who want email, calendar and contacts.
For this we have Exchange 2000. Most of these users are roaming and
are often behind firewalls which only allow HTTP communication on port
80. These users would like to synchronize their email, calendar and
contacts with the company server in a secure manner, since they are
mostly offline. I therefore have 2 questions:

1. Is it in any way possible to somehow tunnel all communication
through the HTTP protocol?

2. Are there any products other than Exchange and Notes which offer
email, calendar and contacts, and the secure synching of these over
HTTP?

I hereby challenge you to find me a solution :)

Thanks in advance,

Bjoern



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