Palo Alto Networks Predefined Decryption Exclusions
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Next-Generation Firewall Docs
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PAN-OS 9.1 (EoL)
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- Best Practices for Securing Your Network from Layer 4 and Layer 7 Evasions
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- Decryption Overview
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- Keys and Certificates for Decryption Policies
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- Perfect Forward Secrecy (PFS) Support for SSL Decryption
- SSL Decryption and Subject Alternative Names (SANs)
- High Availability Support for Decrypted Sessions
- Decryption Mirroring
- Configure SSL Forward Proxy
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- Configure SSH Proxy
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- Temporarily Disable SSL Decryption
- Configure Decryption Port Mirroring
- Verify Decryption
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- How Decryption Broker Works
- Layer 3 Security Chain Guidelines
- Configure Decryption Broker with One or More Layer 3 Security Chain
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- About Palo Alto Networks URL Filtering Solution
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- Tap Interfaces
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- DNS Overview
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- Policy Types
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- External Dynamic List
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- CLI Commands for Dynamic IP Addresses and Tags
- Application Override Policy
- Test Policy Rules
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PAN-OS 11.1 & Later
- PAN-OS 11.1 & Later
- PAN-OS 11.0 (EoL)
- PAN-OS 10.2
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- Tap Interfaces
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- Layer 2 and Layer 3 Packets over a Virtual Wire
- Port Speeds of Virtual Wire Interfaces
- LLDP over a Virtual Wire
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- Zone Protection for a Virtual Wire Interface
- VLAN-Tagged Traffic
- Virtual Wire Subinterfaces
- Configure Virtual Wires
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- DHCP Overview
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- DNS Overview
- DNS Proxy Object
- DNS Server Profile
- Multi-Tenant DNS Deployments
- Configure a DNS Proxy Object
- Configure a DNS Server Profile
- Use Case 1: Firewall Requires DNS Resolution
- Use Case 2: ISP Tenant Uses DNS Proxy to Handle DNS Resolution for Security Policies, Reporting, and Services within its Virtual System
- Use Case 3: Firewall Acts as DNS Proxy Between Client and Server
- DNS Proxy Rule and FQDN Matching
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- NAT Rule Capacities
- Dynamic IP and Port NAT Oversubscription
- Dataplane NAT Memory Statistics
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- Translate Internal Client IP Addresses to Your Public IP Address (Source DIPP NAT)
- Create a Source NAT Rule with Persistent DIPP
- PAN-OS
- Strata Cloud Manager
- Enable Clients on the Internal Network to Access your Public Servers (Destination U-Turn NAT)
- Enable Bi-Directional Address Translation for Your Public-Facing Servers (Static Source NAT)
- Configure Destination NAT with DNS Rewrite
- Configure Destination NAT Using Dynamic IP Addresses
- Modify the Oversubscription Rate for DIPP NAT
- Reserve Dynamic IP NAT Addresses
- Disable NAT for a Specific Host or Interface
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- Network Packet Broker Overview
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PAN-OS 11.2
- PAN-OS 11.2
- PAN-OS 11.1
- PAN-OS 11.0 (EoL)
- PAN-OS 10.2
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- PAN-OS 9.1 (EoL)
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- PAN-OS 8.1 (EoL)
- Cloud Management and AIOps for NGFW
End-of-Life (EoL)
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 subject to Security policy).
The firewall provides a predefined SSL Decryption Exclusion
list to exclude from decryption commonly used sites that break decryption
because of technical reasons such as pinned certificates and mutual
authentication. The predefined decryption exclusions are enabled
by default and Palo Alto Networks delivers new and updated predefined
decryption exclusions to the firewall as part of the Applications
and Threats content update (or the Applications content update,
if you do not have a Threat Prevention license). The firewall does
not decrypt traffic that matches predefined exclusions and allows
the encrypted traffic based on the Security policy that governs
that traffic. However, the firewall can’t inspect the encrypted
traffic or enforce Security policy on it.
The SSL Decryption Exclusion list is not for sites
that you choose not to decrypt for legal, regulatory, business,
privacy, or other volitional reasons, it is only for sites that
break decryption technically (decrypting these sites blocks their
traffic). For traffic such as IP addresses, users, URL categories,
services, and even entire zones that you choose not to decrypt, Create
a Policy-Based Decryption Exclusion.
Because the traffic of sites on the SSL Decryption Exclusion
list remains encrypted, the firewall does not inspect or provide
further security enforcement the traffic. You can disable a predefined
exclusion. For example, you may choose to disable predefined exclusions
to enforce a strict security policy that allows only applications
and services that the firewall can inspect and on which the firewall
can enforce Security policy. However, the firewall blocks sites
whose applications and services break decryption technically if
they are not enabled on the SSL Decryption Exclusion list.
You can view and manage all Palo Alto Networks predefined SSL
decryption exclusions directly on the firewall (DeviceCertificate ManagementSSL Decryption Exclusions).
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The Hostname displays the name of the
host that houses the application or service that breaks decryption
technically. You can also Add hosts to Exclude
a Server from Decryption for Technical Reasons if it is not
on the predfined list.
The Description displays the reason the
firewall can’t decrypt the site’s traffic, for example, pinned-cert (a
pinned certificate) or client-cert-auth (client
authentication).
The firewall automatically removes enabled predefined SSL decryption
exclusions from the list when they become obsolete (the firewall
removes an application that decryption previously caused to break
when the application becomes supported with decryption). Show
Obsoletes checks if any disabled predefined exclusions
remain on the list and are no longer needed. The firewall does not
remove disabled predefined decryption exclusions from the list automatically, but
you can select and Delete obsolete entries.
You can select a hostname’s checkbox and then click Disable to
remove predefined sites from the list. Use the SSL Decryption Exclusion
list only for sites that break decryption for technical reasons, don’t
use it for sites that you choose not to decrypt.