Device > Certificate Management > SSL Decryption Exclusion
View and manage SSL decryption exclusions . There are two types of decryption exclusions, predefined exclusions and custom exclusions:
- Predefined decryption exclusions allow applications and services that might break when the firewall decrypts them to remain encrypted. Palo Alto Networks defines the predefined decryption exclusions and delivers updates and additions to the predefined exclusions list at regular intervals as part of the applications and threats content update. Predefined exclusions are enabled by default, but you can choose to disable the exclusion as needed.
- You can create custom decryption exclusions to exclude server traffic from decryption. All traffic originating from or destined to the targeted server remains encrypted.
Use the settings on this page to Modify or Add a Decryption Exclusion and to Manage Decryption Exclusions.
SSL Decryption Exclusions Settings
Modify or Add a Decryption Exclusion
Enter a Hostname to define a custom decryption exclusion. The hostname defined here is compared against the SNI requested by the client or the CN presented in the server certificate. You can also use a wildcard asterisk (*) to create a decryption exclusion for all hostnames associated with a domain. Sessions where the server presents a CN that contains the defined domain are excluded from decryption.
Hostnames should be unique for each entry—if a predefined entry is delivered to the firewall that matches an existing custom entry, the custom entry takes precedence.
You cannot edit the Hostname for a predefined decryption exclusion.
Select Shared to share a decryption exclusion across all virtual systems in a multiple virtual system firewall.
While predefined decryption exclusions are shared by default, you can enable and disable both predefined and custom entries for a specific virtual system.
(Optional) Describe the application that you are excluding from decryption, including why the application breaks when decrypted.
Exclude the application from decryption. Disable this option to start decrypting an application that was previously excluded from decryption.
Manage Decryption Exclusions
Enable one or more entries to exclude them from decryption.
Disable one or more predefined decryption exclusions.
Because decryption exclusions identify applications that break when decrypted, disabling one of these entries will cause the application to be unsupported. The firewall will attempt to decrypt the application and the application will break. You can use this option if you want to ensure certain encrypted applications do not enter your network.
Show obsoletes to view predefined entries that Palo Alto Networks no longer defines as decryption exclusions.More about obsolete entries:
Updates to predefined decryption exclusions (including the removal of a predefined entry) are delivered to the firewall as part of Applications and Threats content updates. Predefined entries with Exclude from decryption enabled are automatically removed from the list of SSL decryption exclusions when the firewall receives a content update that no longer includes that entry.
However, predefined entries with Exclude from decryption disabled remain on the SSL decryption list even after the firewall receives a content update that no longer includes that entry. When you Show obsoletes, you will see these disabled predefined entries that are not currently being enforced; you can remove these entries manually as needed.
Palo Alto Networks Predefined Decryption Exclusions
The firewall automatically bypasses decryption for sites that are known to break decryption for technical reasons such as a pinned certificate (the traffic is still ...
Exclude a Server from Decryption
You can add applications that break decryption for technical reasons and aren’t already on the SSL Decryption Exclusion list such as internal custom applications to ...
Some applications can’t be decrypted for technical reasons and some traffic can’t be decrypted for business, compliance, or regulatory reasons. Make decryption exceptions only when ...
Exclude Unsuitable Traffic from Data Center Decryption
Some applications can’t be decrypted for technical reasons and some traffic can’t be decrypted for compliance or regulatory reasons, but only make exceptions when you ...
Create a Decryption Policy Rule
Decryption policy rules granularly define the traffic to decrypt or not to decrypt based on the source, destination, service (application port), and URL Category. ...
Configure Server Certificate Verification for Undecrypted T...
Even though the traffic is encrypted, you can protect your network against sessions with expired certificates and untrusted issuers for traffic you choose not to ...
Create a Decryption Profile
Attach Decryption profiles to Decryption policy rules to control the protocol versions, algorithms, verification checks, and session checks the firewall accepts for the traffic defined ...
Create a Policy-Based Decryption Exclusion
Exclude traffic that you choose not to decrypt for legal, privacy, or business reasons from decryption to comply with those policies while still applying SSL ...
Work with Stakeholders to Develop a Decryption Deployment S...
To understand the traffic you should and should not decrypt, work with other invested groups, including finance, HR, IT, legal, and executives to ensure that ...