Microsoft Forefront Threat Management Gateway 2010 is the current version of the product previously known as ISA Server. TMG 2010 adds subscription-based URL filtering and malware protection, the free-subscription-based Microsoft IPS Network Inspection System, and HTTPS inspection.

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Publishing a web app listening on two different ports with TMG

We have an internal web app built on some custom Java stuff. The app listens on port 8080, but also uses IIS on port 80 to get user authentication. Opening the site in a browser produces HTTP GETs ...
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550 views

Asymmetric routing with two ForeFront TMG 2010 firewalls

I have a bizzarre networking problem. There is a network, a single IP subnet: 192.168.60.0/24. The network has two Internet-connected firewalls (running ForeFront TMG 2010), 192.168.60.253 ...
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1k views

Forefront TMG denied connection using HTTPS listener

I have configured a web publishing rule to allow access to an internal server over HTTP. When i publish the rule everything works as expected. When I change the rule to use a HTTPS listener, the rule ...
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245 views

Why when i installed TMG i became disconnect and connect from internal network to TMG and external

When I install TMG server 2010 on Windows Server 2008 R2, after some minutes I have request time out in ping of internet and ping of ip address of TMG server. And I became disconnected from TMG and ...
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256 views

Unable to connect to Exchange 2010 server from Entourage 2008

I'm having some issues with setting up Entourage 2008 EWS up to connect with our exchange 2010 server. So I hope someone can answer me the following: I know that there are some issues with our ...
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379 views

Trying to setup Exchange 2010 certificate on TMG

I'm running into a problem here, and I'm positive it's simply that I'm not doing something correct (as opposed to it not working). I have a current Exchange 2007 server setup with a third party cert ...
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282 views

Forefront TMG - URL Overrides - how long does it take for them to come into play?

Adding a URL to a category seems seems to take an age, somewhere along the lines of 3 to 4 hours. Is this normal behaviour? Could someone tell me what is the default length of time that it takes ...
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141 views

Set up TMG as a reverse proxy, https-to-http

tl;dr I'm having trouble getting TMG to properly reverse proxy an HTTPS connection on the outside, to an HTTP connection on the inside. We have a LAN (10.0.7.0/24) that hosts a Windows Server 2008 ...
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48 views

Windows VPN / TMG Server Expired Password Stuck Sending New Password

I have a Windows Server 2008R2 Server running Forefront TMG (7.0.9193.500) which works as our firewall and VPN gateway. For the most part it works, blocking traffic and allowing users to VPN in. I ...
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137 views

Route between two branch offices via IPsec VPN to head office?

I have TMG 2010 running on Server 2008 R2 in our head office with 2 branch offices connecting in using Dray Tek 2930 routers with IPsec site to site VPNS. The remote sites can route between the head ...
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Outlook client behind forefront TMG 2010 unable to connect to External Exchange server

Here is my situation. Our office just got sold and we are working on the migration to the new company's environment. Everything has worked fine until the Outlook client's migration. Our firewall is ...
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212 views

Can I map IP addresses to allow 2 site to site VPNs with same IP range using Microsoft TMG

I have a Microsoft TMG server with a number of site-2-site VPNs which all have different IP address ranges. Now a client has asked for another site-2-site VPN but their IP range clashes with an ...
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92 views

Cannot block team viewer through TMG Server 2010

I am just re configuring the firewall in our computer lab and I have created a block URL list. In it are the URL's to the team viewer: http://dyngate.com/ http://teamviewer.com/ This is set ...
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55 views

SSTP VPN via TMG - Connection failing due to root certificate not trusted by trust provider?

I'm attempting to deploy an SSTP VPN via TMG. I've created a self-signed certificate and have added it to the Trusted Root Certification Authorities store on the client PC. When attempting to ...
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113 views

Two NLB mutlicast clusters on the same VLAN processing same traffic

I have an older ISA2006 based NLB cluster which I plan to migrate to a new TMG2010 NLB cluster. I need to have both clusters active for some time during migration (with different IPs of course). Both ...
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547 views

How to enable multicast routing in TMG 2010?

I have a TMG 2010 firewall between some office networks, which handles routing and firewalling; I need to let some application-specific multicast traffic flow between these networks; this is UDP ...