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Fixing broken NAT networking on KVM / Virt-Manager Fedora host

KVM / Virt-Manager guests not got any networking link on your Fedora host?

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sudo nano /etc/libvirt/network.conf

add / change this line from nftables to iptables

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firewall_backend = "iptables"

then restart the service

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sudo systemctl restart libvirtd

done :)

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