I have n number of hosts with below pattern.
hostname01.corp.domain.com
hostname02.corp.domain.com
hostname03.corp.domain.com
...
hostname100.corp.domain.com
hostname101.corp.domain.com
hostname102.corp.domain.com
What regex to use to whitelist for above hosts so that only hostname01.corp.domain.com to hostname100.corp.domain.com are included, but excluding hostname101.corp.domain.com and others?
I prefer to keep the whitelist
in serverclass.conf
explicit - helps in forwarder's administration ....
This should work
hostname([0-9]{2}|100).corp
You can verify it at regex101.com