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Microsoft Forefront ISA Server





Microsoft Forefront, formerly known as Internet Security and Acceleration Server (ISA Server), is a network router, firewall, antivirus program, VPN server and web cache that runs on Windows servers. It includes identity management and protection systems, and discontinued systems for threat management and network protection, along with protection for Sharepoint and Exchange. The scope of discussions includes forward and reverse proxy, application and service publishing, virtual private networks (VPNs), outbound access rules, SSL certificates and network routing within either a single node or an highly-available array pairing.

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I am using forefront TMG 2010, please help me to block face book for specific one domain user.
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We have migrated our Microsoft TMG Server to a new server with same name and same ip address configuration. When we restart our server it is working fine until Microsoft TMG server loads properly it blocks the gateway access for us. We get no gateway message on our DMZ network card.

We have migrated all of our configurations, and certificate. What could we be missing here?
Hi, I am using UAG 2010 and I have hosted one Internal site to access from Public. While uploading large files ( 30 MB)  to site getting error as Server error 404-  File or Directory not found. Appreciated if any suggestions.  I have set the upload limit to 50MB in UAG Trunk
TMG 2010 is blocking some websites, when I try to create a rule to bypass the proxy setting of the TMG again I am not able to access the sites, should we say that the status of the TMG now does not accept creating rules or why is it like that? Help me team.
I am having issues with TMG 2010 trying to install SQL server 2008. TMG 2010 server is associated with SQL Express. How do I unlink the SQL Express and link the new SQL server 2008? How do I keep a copy of the ISA logs on TMG 2010 and SQL server 2008? I have read most of the Microsoft TechNet files on the TMG 2010.
TMG 2010 using SQL database for log query, the files are in the SQL database we would like to have the logs forwarded to Splunk.
Hi there,

I´ve been trying to add computers to my wsus and only one was recently added, my scenario is windows servers with ISA server and ESET antivirus that has the firewall inactive just for connection purpose and it seems that the only one who actually connected to WSUS is the one who does not have ISA client installed, any suggestion on how to get the computers connected? ( already found something related to GPEDIT.msc that work only for one computer),

We have a corporate wide area network. The main site is using tmg 2010, and uses Also we have two more site connected to the main site via a vpn tunnel provided by the ISP. The external sites are and

Traffic between the nodes worked just fine until we implemented the tmg 2010 at the main site. We connect to the ISP via a public IP. Also the ISP provides the traffic coming from the other sites, but we have not been able yet to configure the tmg properly  to allow the incoming traffic from those external sites.

Any suggestions?

Here is the network topology.

Our company TMG 2010 Firewall is filtering some websites.
The websites are being filtered without the rules to filter them except facebook, youtube and porn sites are the only ones being filtered. But for some of those site if you remove https are able to be openned.
Please help
Yesterday we had an inbound email problem where nothing was being delivered and our scanners would not send email to our inboxes  but internal email to internal email worked just fine. I didnt spend much time on diagnosing this I seen an event in the logs on one of the CAS servers.

Failed to connect to the Edge Transport server ADAM instance with exception The LDAP server is unavailable..  This could be caused by a failure to resolve the Edge Transport server name CTEDGEin DNS, a failure trying to connect to port 50636 on CTEDGE network connectivity issues, an invalid certificate, or an expired subscription.  Verify your network and server configuration.

CTEDGE is our forefront server. After I seen this I rebooted the forefront server without any further thought (which was a mistake) and inbound email and scanners starting working again. My boss seems to think that forefront has absolutely nothing to do with the problem.

If CTEDGE is our edge subscription does this mean ALL email in and out is going through that server before it hits the mailboxes on the cas servers despite the fact we have send connectors that are going directly to our mimecast (external) email filter?
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Dear Experts.....!
not secure secure websites are not opening on isa 2000, 2006 or tmg 2010 websites like:
www.badarruddin.net while i have allowed all traffic but only this types of sites are not opening. While im using this site without isa server like directly to internet so its working with showing that in address bar not secure but opening properly. And with any isa server its not opening other all sites are working properly except it. Please advise regarding this issue.
Hi all, thanks for your time in advance.

The issue i've got at the moment is:

We host websites for clients, and are using TMG 2010 SP2 RU5 to perform link translation/reverse proxying to internal systems via VPN connection to a 3rd party to access products hosted on another company. e.g.

Client > Our Product > TMG > 3rd Party via VPN > Vendor > HTTP/HTTPS response

HTTP/HTTPS response > Vendor > 3rd Party via VPN > TMG > Our Product > Client

The issue is some of the products that provide an http/https response don't use modern web compatibility. e.g. we have to inject <head><meta http-equiv="X-UA-Compatible" content="IE=5" /> into the header of the html page using TMG. on a page using SSL certs.

we have a number of domains that we can use potentially

e.g. our current solution is hosted on https://test.ourdomain.com.au which is where the TMG link translation occurs.

We either need to do a double redirect for the HTTP requests or redirect it to another SSL domain which we own which i'm not sure is even possible.


(Note actual names and domains changed for security)
We've a TMG 2010 running in our domain and acting as a proxy server - I'm not aware of any changes being made but users are now being blocked from accessing numerous legit websites and an internal extranet running on IIS.  I'm not at all familiar with Forefront so any suggestions re rule changes would be much appreciated.  Thanks
I am getting the following error when accessing a website.

Denied Connection SERVERNAME 11/8/2016 7:34:02 AM
Log type: Web Proxy (Reverse)
Status: 12202 Forefront TMG denied the specified Uniform Resource Locator (URL).  
Rule: Default rule
Source: External (
Destination: Local Host (
Request: GET http://candelalandscaping.com/ 
Filter information: Req ID: 0a7527f6; Compression: client=Yes, server=No, compress rate=0% decompress rate=0%
Protocol: http
User: anonymous
 Additional information
Client agent: Mozilla/5.0 (Windows NT 6.1; WOW64; Trident/7.0; rv:11.0) like Gecko
Object source: (No source information is available.)
Cache info: 0x0
Processing time: 1 MIME type:

the issue is that the error is intermittent. you can get to the site with no issues one minute and then the next you get the error. whenever I test the rule from inside tmg it all works fine.

I have read a lot of stuff on the web but have not found a solution so any help would be appreciated.
My company plan to migrate Exchange server 2010 to 2016, and current I am using TMG 2010 on Edge server to make as a proxy. Unfortunately, TMG 2010 doesn't support on Windows 2012, I am looking alternative firewall software to replace it. Is there anyone experience on the replacement TMG? Thanks for your advice!

I am having forefront configured on a machine with a single network card. All the user must configure proxy settings into their browsers.
Now I want a specific range of IP addresses to be bypassed from proxy. Mean I want to provide internet to the certain users with specific network ID, which will not proxy settings. I want them to provide them direct access to the internet.

There are certain medical devices in the network which doesn't work behind proxy, but they need internet to be configured.

Please provide me step-by-step procedure for the same.
I want to use network for such device.

Thanks in advance.
Dear Experts,

what is the best option to publish the SharePoint 2013 in DMZ. Please advice

for some reason I cannot ping any device on the internal network but I can ping the host-name.
DHCP and DNS are running off the server.
Its a 2008  r2 server.
We have a router attached to a switch which all the devices and server are attached to.
DHCP is not running on the router.
I am a Sys Admin but email is not my specialty. We had an email admin who left the company, so I am just managing what I can in the interim. We have a request to whitelist a few domains in Office365. Our Info Sec is using a Security Awareness cloud solution product called Wombat. See PDF attached for whitelisting requirement (make reference to North America) from Wombat. If we configure this appropriately, legit phishing email will be sent to our user's inbox, and not land in the spam list or junk email folder.

I need to know if I am taking the right steps. Please use the PDF as a guide to confirm if I am taking the appropriate steps:

1.  From EAC, do I go to Protection > Spam filter > and doubleclick Default?
2. In the PDF for where it outline Phishing Domains, do I include all the North America Phishing Domains under Allowed Sender or Allowed Domain? Also, if I do need to add it to Allowed Sender, should it be entered as (e.g. *@4ooi.co or just simply 400i.co)?
3. If I should create a new spam filter policy, instead of the default, What should the setting in the drop down be for Spam?
What would the setting be for High confidence spam dropdown?
4. What would i need to include in the yellow highlighted area?
5. Would I need to adjust anything in the below?
6. Viewing the PDF attached, where in EAC would I include the Platform Assignment Notifications Mail Servers
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After building a new Web Application (a simple one-pager actually) with VS 2015 Rev 3, then publishing to WS 2012R2 IIS 8.5, and creating the simple rule in Forefront TMG to allow the site to be visible to the public internet, the site does not respond / times out.

Fiddler on the gateway machine where TMG is based states that all 200's are being returned for the page, and there is no access issue. When browsed from inside the private network, the URL is obviously going through TMG (port 80 is returned, not port 99 which is how the web application is setup internally).

I've been working on this for a day-and-a-half, and have pretty much had it. Other existing websites are responding without issue, even on the same web server.

I can only think this has something to do with the publishing process for IIS 8.5, or something to do with VS2015 Rev3, but I am hoping that someone out there has had an identical issue and resolved it.

Thank you.
For the past few months I receive multiple complains from users how cannot access the internet or applications such as Outlook don't send emails etc...the typical things that all point back to internet/proxy.

I have about 500 clients and they are all using DHCP. In the DHCP scope options a wpad.dat field is configured for all clients. I assume this is to avoid having to configure the IP of the proxy on all PC's and take advantage of the 'auto detect' configure the clients usually come with by default. Its been like this long before i entered the company

Any how, my support team continues to call me periodically telling me that they've had to work around the 'proxy' issue by creating a static proxy entry directly in the 'Internet options' field in IE.

I can't come to a conslusion as to why sometimes some clients face proxy issues which cause them to not hit the internet and when the issue happens again (after settings static proxy on client) removing (setting back to auto detect) fixes their 'internet' problem?

When I look at the health of the ISA proxy server, it seems ok in general. No low disk space, mem leaks or cpu over utilization. The only issue here is that ISA is sitting in a 2003 server - yet no configurations have changed.

thanks in advance

Can i get a Guide line  documentation for  Step by step migration FIM 2010 to MIM 2016

We have to migrate our FIM 2010 to MIM 2016.

Thank you
Dear Experts,
I need to deploy TMG 2010 in my LAN for giving and controlling Internet access to all Users/Workstations. We have a DMZ zone and LAN. Kindly help me out where to place the TMG server so that I can provide internet access to my all client machines.
Hi Experts,

Im looking to deploy IAM and was wondering if anyone knows a good IAM system that could accomplish the following tasks?

We would want to be able to control and automate access to various applications including:

-      Automatic provisioning and de-provisioning of application access - automatically creating and removing user accounts within apps)
-      Single sign on to application – users to be able to login to application automatically based on their AD login
-      Password management within application – system able to automatically manage password expiry and password changes within application
-      Self service password reset (AD) – system have a mechanism for staff to reset and manage their AD passwords themselves

The scope of application has not been specifically defined but the focus would be majority of the application that we use which currently have a separate login and manual user account setup. Let me know if you need further clarification.

I would also be interested in other features of IAM that we can make use of.
Hi all,

We configured an Alarm system (module IP) connected to the intranet network protected by a ISA server 2006.
The idea is to create a rule inside the ISA server to permit a connection from outside and activate/deactivate the Alarm system remotely.  They (Alarm company) explain me that the system uses the port 2200 (TCP & UDP).
I configured then two non-web server protocol publishing rules as below:

- server rule name: Alarm external access (TCP)
- server IP to publish (module IP :
- selected protocole: port 2200 TCP Inbound
- listener IP addresses: External

- server rule name: Alarm external access (UDP)
- server IP to publish (module IP :
- selected protocole: port 2200 UDP Inbound
- listener IP addresses: External

When I applied these rules, the result is that my connection arrives to the ISA server on the external interface (initiated connection) and directly closed (closed connection). But impossible to reach the system module...  

Do you have any suggestions or idea?
Thanks Guys!


Microsoft Forefront ISA Server





Microsoft Forefront, formerly known as Internet Security and Acceleration Server (ISA Server), is a network router, firewall, antivirus program, VPN server and web cache that runs on Windows servers. It includes identity management and protection systems, and discontinued systems for threat management and network protection, along with protection for Sharepoint and Exchange. The scope of discussions includes forward and reverse proxy, application and service publishing, virtual private networks (VPNs), outbound access rules, SSL certificates and network routing within either a single node or an highly-available array pairing.

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Microsoft Forefront ISA Server