Redirecting HTTP Requests to SSL Requests using the 2006 ISA Firewall
The life of an end user is a difficult thing. They have to figure out how to get out of the bed in the morning, figure out how high tech tools like toasters, radios and televisions work, and how to turn on an automobile and make it move in the right direction in order to get to work. With all that happening even before they get to work, you can understand how they’re intellectually drained by the time they get into the office.
Why am I assuming that they’re intellectually drained? Because they can never remember to use https: when connecting to the OWA Web site. 
OK, all kidding aside, one of the most popular requests among ISA Firewall admins has been the ability to easily redirect users who enter http://owa.domain.com/exchange to https://owa.domain.com/exchange Actually, we should give the users a break, because they normally never have to enter the protocol into the browsers addresses bar. We typically just enter the FQDN for the destination and the browser automatically adds the protocol for us.
The ISA Firewall team has heard your wishes and has included an easy way for you to redirect these requests.
- In the ISA Firewall console, click Firewall Policy:
- On the Toolbox tab, click Network Objects, expand Web Listeners, right-click the Web listener, and then select Properties.
- Click the Connections tab.
- Put a checkmark in the Enable HTTP connections on port and confirm that the listening port for HTTP is 80.
- Confirm that Enable SSL (HTTPS) connections on port is enabled and is listening on port 443.
- Select Redirect all traffic from HTTP to HTTPS.
Cool, eh?
HTH,
Tom
Thomas W Shinder, M.D.
Site: www.isaserver.org
Blog: http://blogs.isaserver.org/shinder/
Book: http://tinyurl.com/3xqb7
Email: tshinder@isaserver.org
MVP — Microsoft Firewalls (ISA)
Stefaan Pouseele Blog » Blog Archive » Redirecting OWA Users to the Correct Directories and Protocols with ISA Server 2006 Says:
November 1st, 2006 at 6:46 am
[…] With ISA Server 2006 the solution to redirect the HTTP requests to SSL (HTTPS) requests is very easily implemented by properly configure the Connections properties of the Web Listener as explained in Tom’s blog Redirecting HTTP Requests to SSL Requests using the 2006 ISA Firewall. One of the solutions to redirect the users to the /Exchange folder was to include a special path mapping translating the root path “/” to the special Exchange path “/Exchange”. However with ISA Server 2006 this is no longer possible because it generate the Event ID 21177 as mentioned in my previous blog ISA Server 2006 and KB917025 and the following ISA Alert: […]
Ali Says:
January 5th, 2010 at 12:28 pm
neat article. would you know of a way to do the reverse, https to http? i.e ISA2006 offloads SSL before the requests are passed on to the CAS.
Thanks
vuk Says:
September 23rd, 2010 at 5:50 am
big deal.
show us https to http redirection.
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