alika
11-19-2007, 03:07 PM
chặn user download nhạc, video thông qua isa bằng content type
To create an access rule that denies the .mp3 content type, follow these steps:1. Start ISA Server Management, and then connect to your ISA Server computer if you are not already connected.
2. Expand Servername, and then click Firewall Policy.
3. Click the Toolbox tab, click Content Types, and then click New.
4. In the Name box, type a name for the .mp3 content type.
5. In the Available types list, click .mp3, and then click Add.
6. Click OK.
7. Click the Tasks tab, and then click Create New Access Rule.
8. Type a name for the access rule, and then click Next.
9. Leave the Deny option selected, and then click Next.
10. Leave the All outbound protocols option selected in the This rule applies to list, and then click Next.
11. Click Add, click the network entity that you want to prevent from accessing the particular Internet service, click Add, and then click Close. For example, if you want to prevent all users who are connected to the internal network from downloading .mp3 files, expand Networks, click Internal, click Add, and then click Close.
12. Click Next, and then click Add.
13. Expand Networks, click External, click Add, and then click Close.
14. Click Next, leave the default All Users user set listed in the This rule applies to requests from the following user sets box, click Next, and then click Finish.
15. Right-click the new access rule that you created, and then click Properties.
16. Click the Content Types tab, and then click Selected content types.
17. In the Content types list, click to select the check box that corresponds to the new content type that you created for .mp3 files, and then click OK.
18. Click Apply to save your changes and to the update firewall policy, and then click OK.
Note When you create a content filter, only HTTP traffic is filtered. Therefore, some peer-to-peer file sharing programs may not be blocked.
To create an access rule that denies the .mp3 content type, follow these steps:1. Start ISA Server Management, and then connect to your ISA Server computer if you are not already connected.
2. Expand Servername, and then click Firewall Policy.
3. Click the Toolbox tab, click Content Types, and then click New.
4. In the Name box, type a name for the .mp3 content type.
5. In the Available types list, click .mp3, and then click Add.
6. Click OK.
7. Click the Tasks tab, and then click Create New Access Rule.
8. Type a name for the access rule, and then click Next.
9. Leave the Deny option selected, and then click Next.
10. Leave the All outbound protocols option selected in the This rule applies to list, and then click Next.
11. Click Add, click the network entity that you want to prevent from accessing the particular Internet service, click Add, and then click Close. For example, if you want to prevent all users who are connected to the internal network from downloading .mp3 files, expand Networks, click Internal, click Add, and then click Close.
12. Click Next, and then click Add.
13. Expand Networks, click External, click Add, and then click Close.
14. Click Next, leave the default All Users user set listed in the This rule applies to requests from the following user sets box, click Next, and then click Finish.
15. Right-click the new access rule that you created, and then click Properties.
16. Click the Content Types tab, and then click Selected content types.
17. In the Content types list, click to select the check box that corresponds to the new content type that you created for .mp3 files, and then click OK.
18. Click Apply to save your changes and to the update firewall policy, and then click OK.
Note When you create a content filter, only HTTP traffic is filtered. Therefore, some peer-to-peer file sharing programs may not be blocked.
