Say, we have events like this:
_time
fw
src_ip
dest_ip
dest_port
fw_rule_action
8/1/22 1:30:00.000 AM
fw1
192.168.50.51
8.8.8.8
53
block
1/1/22 1:30:00.000 AM
fw1
192.168.50.51
8.8.8.8
53
permit
12/31/21 1:30:00.000 AM
fw1
192.168.50.51
8.8.8.8
53
permit
We want to find the events that changed based on fw_rule_action. The real world scenario can be that you consolidated the (whatever) rule base and after application, you want to see, if some events are permitted that were blocked in the past and vice visa.
What is the right approach to find the (in this example) block events? Is creating a baseline the right way?
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