Monkey Albino

Linux altar53.supremepanel53.com 4.18.0-553.8.1.lve.el8.x86_64 #1 SMP Thu Jul 4 16:24:39 UTC 2024 x86_64
/ usr/ lib/ firewalld/ services/

//usr/lib/firewalld/services/gre.xml

<?xml version="1.0" encoding="utf-8"?>
<service>
    <protocol value="gre"/>
    <helper name="proto-gre"/>
</service>