How to add dynamic URLs or FQDNs to security rules

[DanielJavier]

What is the correct way to add these URLs or FQDNs when they are dynamic, for example ec2-52-23-100-129.compute-1.amazonaws.com I usually add .*.compute-1.amazonaws.com, but not always respect the wildcard.


I attach an image of how the object was created.

Thanks all

[PhoneBoy]

For the option you tried to work, you must have Passive DNS Learning set up correctly.
This requires the gateway to see the DNS requests from the client to a trusted DNS server.
See: https://support.checkpoint.com/results/sk/sk161612 

Custom Application/Site Objects are another option.