EN Location. Download PDF. Last Updated:. Current Version:.

Use an External Dynamic List in a URL Filtering Profile

External Dynamic List. An External Dynamic List is a text file that is hosted on an external web server so that the firewall can import objects—IP addresses, URLs, domains—included in the list and enforce policy.

To enforce policy on the entries included in the external dynamic list, you must reference the list in a supported policy rule or profile. When multiple lists are referenced, you can prioritize the order of evaluation to make sure the most important EDLs are committed before capacity limits are reached.

PAN-OS 8.0: IP Block List Feeds

As you modify the list, the firewall dynamically imports the list at the configured interval and enforces policy without the need to make a configuration change or a commit on the firewall. If the web server is unreachable, the firewall will use the last successfully retrieved list for enforcing policy until the connection is restored with the web server, but only if the list is not secured with SSL.

To retrieve the external dynamic list, the firewall uses the interface configured with the Palo Alto Networks Services. The firewall supports four types of external dynamic lists:. Predefined IP Address. IP Address. As a match criterion in Security policy rules, Decryption policy rules, and QoS policy rules to allow, deny, decrypt, not decrypt, or allocate bandwidth for the URLs in the custom category.

On each firewall model, you can add a maximum of 30 custom EDLs with unique sources to enforce policy. The external dynamic list limit is not applicable to Panorama.

When using Panorama to manage a firewall that is enabled for multiple virtual systems, if you exceed the limit for the firewall, a commit error displays on Panorama. A source is a URL that includes the IP address or hostname, the path, and the filename for the external dynamic list.

The firewall matches the URL complete string to determine whether a source is unique. While the firewall does not impose a limit on the number of lists of a specific type, the following limits are enforced:. No limits are enforced for the number of IP addresses per list.

When the maximum supported IP address limit is reached on the firewall, the firewall generates a syslog message. The IP addresses in predefined IP address lists do not count toward the limit.

No limits are enforced for the number of URL or domain entries per list. Refer to the following table for specifics on your model:. PA appliances with mixed NPCs only support the standard capacities. VM, VM List entries only count toward the firewall limits if they belong to an external dynamic list that is referenced in policy.

When parsing the list, the firewall skips entries that do not match the list type, and ignores entries that exceed the maximum number supported for the model. To ensure that the entries do not exceed the limit, check the number of entries currently used in policy. Select Objects. An external dynamic list should not be empty.EN Location.

Download PDF. Last Updated:. Current Version:. PAN-OS 9. Issue ID. Ensure uninterrupted power to all appliances throughout the upgrade process. A critical System log is generated on the VM-Series firewall if the minimum memory requirement for the model is not available. When the memory allocated is less than 4. The following error message displays: Failed to install 9.

Please configure this VM with enough memory before upgrading. If the memory allocation is more than 4. Therefore, any ESXi hosts that you add to a vSphere cluster are not added to the correct device group, template, or template stack and your Security policy is not pushed to VM-Series firewalls that you deploy after you rename those objects.

There is no impact to existing VM-Series firewalls. SNMP traps configured to use the dataplane port in service routes are still sent using the management interface. Uploads for custom logos fail. Expected branch routes are for generic prefixes, which can be configured in the hub and advertised to all branches.

Branches with unique prefixes are not published up to the hub. Delete devices manually in the web interface or CLI. When you configure a Server Profile, the custom log format for GlobalProtect logs is missing.

There is an issue where VM-Series firewalls do not support packet buffer protection. Dynamic tags from other sources are accessible using the CLI but do not display on the Panorama web interface. A workaround exists for this issue.

Please contact Support for information about the workaround. Restart the firewall devsrvr. Log in to the firewall CLI. Restart the devsrvr process: debug software restart process device-server. M-Series Panorama management servers in Management Only mode. Microsoft Azure only. Firewalls with multiple virtual systems only. You can temporarily submit a change request for a URL Category with more than two suggested categories.

However, we support only two suggested categories so add no more than two suggested categories to a change request until we address this issue. If you submit more than two suggested categories, we will use only the first two categories you enter. Invalid configuration errors are not displayed as expected when you revert a Panorama management server configuration.

The push scope selection on the Panorama web interface displays incorrectly even though the commit scope displays as expected. This issue occurs when one administrator makes configuration changes to separate device groups or templates that affect multiple firewalls and a different administrator attempts to push those changes.

Initiate a Commit to Panorama.It was a great experience for learning about best practices and networking with others. There are of course a myriad of these types of malicious IP lists available. Lucky for us, someone has compiled several of these sources and formatted the data such that Palo Alto can properly ingest them. I added most of these to my own configuration and added one from abuse.

Repeat for any additional threat intelligence feeds you may have. Commit the changes to save the configuration. Note: There are limits to the list capacities. At the time of this writing they are as follows:. We could update our security policy rule to send us an email anytime this rule was triggered. Perhaps a future blog post. We have version 7.

The lists do not require https, though it is recommended, to prevent man-in-the-middle attacks of your list updates. From my understanding the path must be either http or https.

Your email address will not be published. This site uses Akismet to reduce spam. Learn how your comment data is processed. If you have a valid Threat Prevention license, you should already see the two Palo Alto-provided lists noted above. Populate the required fields: Name : Give a name for the list. Description : Enter a helpful description for the list. Source : This is the URL of the threat intelligence feed.

It is preferred that https URLs be used so that the feeds are not compromised in transit. However, I did notice that the firewall would not properly download from the https-version of ransomwaretracker.Go to Solution. View solution in original post. Looks like an authentication error to me. The reason for asking, is that there is a bug in 8.

Yes it is enables but i am using anonymous tag. First i tried to do on panorama but looks like i can not use cert profile when i try to create EDL. So i went and create on one of my firewall but no log. Click Accept as Solution to acknowledge that the answer to your question has been provided.

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Articles General Articles. Discussions General Topics. Custom Signatures. Endpoint Traps Discussions.EN Location. Download PDF. Last Updated:. Current Version:. External dynamic lists give you the ability to update the list without a configuration change or commit on the firewall. An external dynamic list is a text file that is hosted on an external web server. When the list is updated on the web server, the firewall retrieves the changes and applies policy to the modified list without requiring a commit on the firewall.

The firewall dynamically imports the list at the configured interval and enforces policy for the URLs IP addresses or domains are ignored in the list. For more information, see External Dynamic List. Ensure that the list does not include IP addresses or domain names; the firewall skips non-URL entries.

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Select URL List. Use the external dynamic list in a URL Filtering profile. Select Objects. Click Action to select a more granular action for the URLs in the external dynamic list.

If a URL that is included in an external dynamic list is also included in a custom URL category, or Block and Allow Liststhe action specified in the custom category or the block and allow list will take precedence over the external dynamic list.

Click OK. Select Policies. Select the Actions. Test that the policy action is enforced. Verify that the action you defined is enforced in the browser. To monitor the activity on the firewall:.

Select ACC. Select Monitor. Verify whether entries in the external dynamic list were ignored or skipped. In a list of type URL, the firewall skips non-URL entries as invalid and ignores entries that exceed the maximum limit for the firewall model. To check whether you have reached the limit for an external dynamic list type, select Objects. Use the following CLI command on a firewall to review the details for a list. Recommended videos not found.

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palo alto external dynamic list url

Learning Happy Hour. Knowledge Base. Support Portal. Tech Docs. Security Advisories. Security Lifecycle Review. Threat DB. GlobalProtect Overview. Cortex XDR v2. Good Reads in Cybersecurity Canon.This is a cool and easy to use security feature from Palo Alto Networks firewalls: The External Dynamic Lists which can be used with some free 3rd party IP lists to block malicious incoming IP connections.

I am showing the configuration of such lists on the Palo Alto as well as some stats about it. What is an external dynamic list? I am currently using the following two well-known lists:. Follow the link above and have a look! What about IPv6? Well, it seems that only legacy IP is widely supported.

Those dynamic objects can then be used within a security policy. In my case I have added two deny policies at the very beginning of my whole ruleset. Immediately after committing the traffic log shows denied connection from various IPv4 addresses:. At first I was interested whether the whole blacklists are used correctly by the firewall. I captured this screenshot from the FireHOL page that shows In fact, exactly the same valid entries were listed in the Palo Alto dynamic list at the same time, as the following listing shows.

Now here is a custom report that shows all denied connections during the last calendar week, sorted by count top 5grouped by port. I really like this feature, at least for my lab where not everything is business critical. Can we accomplish this by blocking in URL filtering profile or by any other way. Create a custom URL list with the domain, allow it in filter, and include it in the policy as allowed traffic.

Ciao, first of all thanks for thsi marvellous article. Please can you help me? I am not quite sure what might be your problem. It is likely the https giving you problems.

Tutorial: Configuring Your Security Policy

Try using http: for the link and see if they serve it without SSL. I suspect the FW is not trusting the CAs used in the https cert.