deploying forefront tmg 2010 server as a reverse proxy in an existing firewall dmz _ ms server pro

7/27/2019 Deploying Forefront TMG 2010 Server as a Reverse Proxy in an Existing Firewall DMZ _ MS Server Pro

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Deploying Forefront TMG 2010 Server as a Reverse Proxy in an Existing

Firewall DMZ

February 13, 2012 Naresh Man Maharjan No comments (http://www.msserverpro.com/deploying-forefront-tmg-2010-

server-as-a-reverse-proxy-in-an-existing-firewall-dmz/#respond)

Normally, organization use hardware firewall (Checkpoint, Cisco

ASA, and Juniper) to secure their network (This has been the

trend over last ten years). Due to some limitations of networking

features in previous versions of Microsoft Firewall (ISA Server

2004/2006), large organizations used hardware firewall at theedge of network. Forefront TMG 2010 Server can fit many roles

within organizations, such as Edge firewall, VPN Server, Secure

Web Gateway, forward proxy, reverse-proxy and many more.

Therefore, in many deployment scenarios, Forefront TMG 2010 is

used solely for forward and reverse proxy functionality. In these

configurations, Forefront TMG 2010 Server is typically deployed

in the perimeter (DMZ) network of an existing firewall (Cisco ASA)

for extra layer of protection to the web related services such as

Web Server, Secure Web Server, Exchange Outlook Web access

from external intrusion and attack.

loying Forefront TMG 2010 Server as a Reverse Proxy in an Existi... http://www.msserverpro.com/deploying-forefront-tmg-2010-server-as-a...

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(http://www.msserverpro.com/view/1178/pic2)

Perform the following steps to configure Publishing a Web Server Using HTTP Protocol using Port Redirection

(Bridging):

Step 1. Create a Web listener for use in Publishing a Web Server Using HTTP Protocol

Step 2. Create a Web Publishing Rule using Port redirection (Bridging)

Step 3. Optional Configuration (but very Important)

The Web listener can be created independently (as in this task), or during creation of a Web Publishing rule.

Step 1. Create a Web listener for use in Publishing a Web Server Using HTTP Protocol

1. In the Forefront TMG Management console, click the Firewall Policy Console node.

(http://www.msserverpro.com/view/1178/1-47)

2. In the Right pane, click the Toolbox tab. Expand Network Objects, Click on New Tab and then select Web Listener.


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(http://www.msserverpro.com

/view/1178/4-43)

5. On the Web Listener IP Addresses page, select All Networks (and Local Host) as the adapter that will listen for

incoming Web requests on these networks. ( Note: We are using TMG Server with single NIC)


/view/1178/5-41)


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6. On the Authentication Settings page, select No Authentication in the drop-down list option and click Next.


/view/1178/6-31)

7. On the Single Sign On Settings page, click Next.


/view/1178/7-29)


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8. On Completing the New Web Listener Wizard page, Click Finish.


/view/1178/8-28)

9. Click Apply To save changes and update the configuration, click Apply Saving Configuration Changes and then click OK.

(http://www.msserverpro.com/view/1178

/9-21)


/view/1178/9a)


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/view/1178/9b-2)

Step 2.Create a Web Publishing Rule.

1. In the Forefront Management console, click the Firewall Policy node. In the right pane, click the Tasks tab and then

click Publish Web Sites.


2. On the Welcome to the New Web Publishing Rule Wizard page, type Publishing MSSERVER WEB SITE and click Next.


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/view/1178/2-51)

3. On the Select Rule Action page, select Allow and click Next.


/view/1178/3-49)


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4. On the Publishing Type page, select Publish a single Web site or load balancer and click Next.


/view/1178/4-44)

5. On the Server Connection Security page, select Use non-secured connections to connect the published Web

server or server farm and click Next.


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/view/1178/6-32)

7. On the Internal Publishing Details page, type /* in Path (optional) to allow access to all of the content for the site

www.msserverpro.com (http://www.msserverpro.com/)without any restriction to any specific folders in the site and select

the check box Forward of the original host header instead of the actual one specified in the Internal site name field

on the previous page and then click Next.


/view/1178/7-30)

8. On the Public Name Details page, accept the default to only accept requests for This domain name, and type

www.msserverpro.com (http://www.msserverpro.com/) in the Public name and click Next.


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/view/1178/8-31)

9. On the Select Web Listener page, select External to DMZ (HTTP), and then click Next. This Web listener was created

in the STEP 1.


/view/1178/9-22)


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10. On the Authentication Delegation page, leave the default authentication option and then click Next. In our scenario, we

have select No Authentication in Web Listener and site can be accessed by anyone.


/view/1178/10-20)

11. On the Users Sets page, accept the default All Users because this is the Public Web site Portal and my goal is that

everyone should be able to access it without authentication and then click Next.


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/view/1178/11-13)

12. On the Completing the New Web Publishing Rule Wizard page, review the configuration and click Finish.


/view/1178/12-15)


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13. Click Apply To save changes and update the configuration, click Apply Saving Configuration Changes and then click

OK.


/view/1178/13-13)


/view/1178/13a)


/view/1178/13b-5)

14.Double-click on Publishing MSSERVERPRO SITE just we have created, click Bridging Tab and change the HTTPPort 8010 because MSSERVERPRO Internal Web Server is using a port other than Port 80.Then click Apply and click

Test Rule to check the publishing rule is working properly.


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(http://www.msserverpro.com/view/1178

/14b-3)

Step 3. Optional Configuration:

Now our Publishing MSSERVERPRO Web server is working. But this is the optional configuration.

1.Copy the Publishing MSSERVERPRO WEB SITErule and Paste it.


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(http://www.msserverpro.com/view/1178/1b-6)

2. Double-click the new paste Publishing MSSERVERPRO WEB SITE rule, rename the Publishing rule, click on Public

Name Tab, edit the www.msserverpro.com (http://www.msserverpro.com/) to msserverpro.com.



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3. On the Publishing MSSERVERPRO WEB SITE Properties dialog box, click Action Tab, select deny radio button and

select the check box Redirect HTTP requests to this Web page, type http://www.msserverpro.com

(http://www.msserverpro.com/) then click Apply and click OK.


4. Then configure HTTP filtering to control HTTP Methods, block Windows executable content, Extensions, Modify

Headers etc.


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(http://www.msserverpro.com/view/1178/4a-6)


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(http://www.msserverpro.com/view/1178/4b-9)

(http://www.msserverpro.com/view/1178/4c-6)


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(http://www.msserverpro.com/view/1178/4d-3)

5. Apart from this, this is not related with Web Publishing rule; we have to customize the Flood Mitigation settings to more

secure to our web server.


6. Lastly, Network Inspections System (NIS) must be updated with latest signatures. NIS uses signatures of knownvulnerabilities from the Microsoft Malware Protection Center.


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Summary:

TMG encompasses all layers of protection provided by hardware firewall as well as advanced protection features

employing Reverse Proxy and inspections according to the policy set forth.

(http://www.addtoany.com/share_save#url=http%3A%2F%2Fwww.msserverpro.com%2Fdeploying-forefront-tmg-2010-server-as-a-reverse-proxy-in-an-existing-firewall-dmz%2F&title=Deploying%20Forefront%20TMG%202010%20Server%20as%20a%20Reverse%20Proxy%20in%20an%20description=)

Posted in: ISA / TMG 2010 (http://www.msserverpro.com/category/tmg-2010/)

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deploying forefront tmg 2010 server as a reverse proxy in an existing firewall dmz _ ms server pro

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