--On Friday, July 17, 2020 6:43 AM +0530 Kaushal Shriyan <kaushalshriyan at gmail.com> wrote: > Please refer to my pastebin link https://paste.centos.org/view/cd55a9a6. > Basically I want to allow the below mentioned ruleset on the server > (CentOS Linux release 8.2.2004 (Core)) and drop the rest of the network > traffic from 0.0.0.0/0 Your default input policy is accept. Change it to drop.