The block page for custom URL Filtering categories is not displaying, whereas it is visible for predefined categories.

[AkashThangavel]

Hi team,

The block page for custom URL Filtering categories is not displaying, whereas it is visible for predefined categories.

Predefined category :

Custom category:

Logs:

Blocking is effective, but the block page appears exclusively for predefined categories. Are there specific settings that need to be enabled for custom categories to display the block page?

regards,

Akash Thangavel

Network Security Engineer

[akuzhuppilly · Accepted solution]

Hello @AkashThangavel 

You need to check the logs to understand what is really going on.

First of all, you need to have SSL decryption in place to display a block page for HTTPS websites.

If no SSL decryption is in place, then you will have to follow the steps suggested in the following KB:

https://knowledgebase.paloaltonetworks.com/KCSArticleDetail?id=kA10g000000ClFKCA0

The firewall injects the block page after the SSL handshake, so it is important that the SSL handshake is completed successfully before you can get the blocked page.

It should work for both pre-defined and custom categories.

[AkashThangavel · Accepted solution]

# set deviceconfig setting ssl-decrypt url-proxy yes

This command is working for the custom category.

thank you @akuzhuppilly 

regards,

Akash Thangavel

Network Security Engineer