Can you confirm the client has applied the policy you created by comparing the serial number in the SEPM with that on the client?

thank for your reply

yes the client updated with policy's SN  .

I tried  rule tcp, dest=(0), msg="facebook BLOCKED", content="www.facebook.com" 

and it blocks https facebook but also block another sites contains word facebook " news sites"

Might sound as a dump question. but make sure you have all the components of SEP installed.

A smillar document to block website is this one.

http://www.symantec.com/business/support/index?pag...

Try this one article

How To Block Internet address via Sep Manager Firewall Rule

https://www-secure.symantec.com/connect/articles/how-block-internet-address-sep-manager-firewall-rule

check these links

 Block certain websites

http://www.symantec.com/business/support/index?pag...

https://www-secure.symantec.com/connect/articles/h...

Blocking a Website using Symantec Endpoint Protection

http://www.symantec.com/docs/TECH92405      ...

How to Restrict Users to Specific Web Sites by Creating Firewall Rules for Managed Clients

http://www.symantec.com/docs/TECH92097

Hi,

Here are few Articles for the same:

Hi,

This is a nice article to follow.

https://www-secure.symantec.com/connect/forums/can...

I found that the Machines which have TMG client installed , all rules of Firewall or intrusion not applied

what is the problem with TMG client that prevent Symantec block the sites ???

Hi,

You install Symantec Endpoint Protection clients on Microsoft Forefront TMG, Forefront Server Security for Sharepoint, or Forefront Server Security for Exchange Server. You need to configure the recommended exclusions

Refer this article: Configuring Symantec Endpoint Protection exclusions for Microsoft Forefront

http://www.symantec.com/docs/TECH106465
 

Thanks Chetan ,

Now I install the Forefront TMG client & it says on the article 

Forefront TMG operates in collaboration with Windows Firewall through the Windows Filtering Platform mechanisms. Thus, unlike ISA Server, Windows Firewall must be enabled on the computer where Forefront TMG operates.

The following table summarizes paths and processes that should be excluded from antivirus scanning for Forefront TMG Medium Business Edition and Forefront TMG 2010.

Does this mean I have to enable the Windows firewall on all clients & make the exceptions? 

is it possible to enable two firewall app on the same machine ? 

thanks

Yes, if we look at Forefront TMG recommendations it seems that Windows Firewall must be enabled on the computer where Forefront TMG operates.

It's possible to enable two firewall app on the same machine however Symantec does recommend to use only one Antivirus/firewall at same time. It avoids conflict and improves the system performance.

Hello,

Follow these steps as you do not want the users to visit to any website except for certain sites no matter what browser they use.

Solution

The above configuration can be done by creating only 2 firewall rules. Please follow the below steps to configure the rules.

1. Go to Firewall policy > Rules.

2. Click on Add Rule button. Select Host > Next > From Address Type drop down menu select DNS domain.

3. Select DNS Domain as *.* then Click Next > Click Finish.

4. Once the rule is created, highlight the New Rule. Go to Service column, right click and edit, then select Add. The rule will be TCP, Source/destination with remote port 80,443 click ok and ok again. Then go to Action column and make it set to "Block".

The above rule is to block all the websites. To create a rule to allow only selected websites, please follow the steps below.

1. Go to firewall policy> Rules.

2. Click on Add Rule. Select Host > Next > From Address Type drop down menu select DNS domain.

3. Enter DNS Domain as *.*symantec*.* This is an example which means all the urls related to symantec will be allowed.

4. Click Next > Click Finish. Multiple websites can be added to the same rule.

5. Once the rule is created, highlight the new rule. Go to Action column and make it to Allow.

Note: Place the "Allow" rule on top of "Block" rule.

Assign the policy to the required group. This will allow only the selected website and block all other website.

Caution: If the above rule is applied to the SEPM itself, we need to allow Symantec domain in order to run the liveupdate. This should be applicable to all the machine where Liveupdate will run.

Plaese find the article and let me know.

https://www-secure.symantec.com/connect/articles/how-block-internet-address-sep-manager-firewall-rule

1) How to block/allow website access using the Symantec Endpoint Protection Manager custom Intrusion Prevention Signature policy

http://bit.ly/uLiS84

2) Video: Allow and Block websites using Symantec Endpoint Protection Firewall

https://www-secure.symantec.com/connect/videos/allow-and-block-websites-using-symantec-endpoint-protection-firewall

3) Article: How To Block Internet address via Sep Manager Firewall Rule

https://www-secure.symantec.com/connect/articles/how-block-internet-address-sep-manager-firewall-rule

Hope that helps!!

When I try to disable the Windows firewall I found it dimmed & it states the below

These Settings are bieng managed by vendor application Symantec Endpoint Protection