RHEL Firewalld Notes

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Purpose

General notes to self on firewalld configurations. Most of the time my servers are simple enough that I do not need to make changes to zones and what not.

Zones

[1][2] 

firewall-cmd --permanent --zone=dmz --change-interface=eth0
firewall-cmd --permanent --zone=dmz --remove-service=ssh
firewall-cmd --permanent --zone=dmz --add-service=http
firewall-cmd --permanent --zone=dmz --add-source=xxx.xxx.xxx.xxx
firewall-cmd --reload
  1. ↑ https://www.digitalocean.com/community/tutorials/how-to-set-up-a-firewall-using-firewalld-on-centos-7
  2. ↑ https://serverfault.com/questions/798051/firewalld-allow-connections-only-from-certain-ip-addresses
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