[libvirt-users] Default firewall rules and forwarding to a guest

Omer Aldemir omeraldemir83 at outlook.com
Thu Dec 22 14:48:05 UTC 2016


I am trying to understand how libvirt firewall rules are loaded as I have firewalld and iptables services are disabled.

Where is the configuration files for firewall and NAT  rules for libvirt?

How can I load default firewall rules if I mess things up

Also I have realized that followings is default

ACCEPT     all  --       ctstate RELATED,ESTABLISHED

but If I am to forward a port for a real IP to internal guest machine I need

ACCEPT     all  --       state NEW,RELATED,ESTABLISHED

(NEW state is required) and also of course a forwarding rule

iptables -t nat -I PREROUTING -p tcp --dport 3389 -j DNAT --to-destination

Is there a place I can make this rules static with LibVirt (not playing with firewalld  and/or iptables service for Centos 7)


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