An issue I’ve run into on Palo Alto Networks firewalls is that everything seems to work when importing a certificate (usually a PFX). Until you start using the certificate, then after a validation or a commit, there’s a warning that the certificate chain is not correctly formed. Warning: certificate chain not correctly formed in certificate…
On November 18th, 2024, the certificates that the Palo Alto User-ID agent and the Palo Alto Terminal Server agent use to communicate with a Palo Alto firewall will expire, causing all communication to fail. Palo Alto Networks has made new versions of the User-ID and TS agents with updated certificates that will expire on January…
Palo Alto Networks makes a program named Terminal Server Agent, aka the TS Agent. It is similar to the User-ID agent. However, the TS Agent is built to identify users on a multi-user system. In this post, I will show you step-by-step how to upgrade the Palo Alto Networks Terminal Server agent. Prerequisites The TS…
Palo Alto Networks firewalls often require a device certificate. A device certificate is needed for items like device telemetry and for some of the CDSS (Cloud-Delivered Security Services) items, such as WildFire, DNS and URL filtering, and others. In this post, I show you step-by-step how to check if a device certificate is installed and…
Palo Alto Networks has this awesome program called the User Identification Agent, aka the User-ID Agent. It allows you to identify which device a user is using, allowing you to craft security policy rules based on the users themselves. In this post, I will show you step-by-step how to upgrade the Palo Alto Networks User-ID…
Sometimes, you need to do a quick factory reset on a Palo Alto Networks firewall. If you aren’t decommissioning the firewall, a Private Data Reset can be a faster way to accomplish similar results as a factory reset and can be done via CLI directly and could technically be done remotely with some coordination. In…
Out of the box, you can’t just add a Security Profile to the interface that runs GlobalProtect fortunately there’s a relatively easy way to do it with minimal impact to your existing GlobalProtect setup. In this post, I will show you step-by-step how to secure GlobalProtect by adding protection with a Vulnerability Protection Profile or…
I needed to route an FQDN (Fully Qualified Domain Name) down an IPSEC VPN tunnel but couldn’t because it was an external address and the IP is dynamic so I wasn’t able to just make a static route to force it down the IPSEC VPN tunnel. To solve this I discovered something called policy based…
I’m a big fan of CLI, I love to use it when I can, it always feels more complete and absolute. A while back I posted how to Upgrade Palo Alto Firewall HA Pair (Active/Passive) in that post I only covered the GUI method this post will detail how to complete everything with CLI only.…
By default Palo Alto Networks firewalls export their configuration as an XML file which is great however, I’m more used to set commands such as the ones commonly used in switches. Fortunately, there’s a way to have the best of both worlds. In this post, I’ll show you step-by-step how to output the Palo Alto…
