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→Testing Connectivity
*Try to ssh to your Matrix account from both the host and guest machines.
*Try to ssh from your Matrix account back to your host and guest machines.
*Add one iptables rule to the guest Use system-config-firewall that will accept new on your VM, so it accepts incoming ssh connections to the guest machine.*Save your new firewall rules iptables-save > /etc/sysconfig/iptables
*Restart iptables using systemctl
systemctl restart iptables.service
*Backup your new firewall rules
iptables-save > /etc/sysconfig/iptables.backup
*Ensure changes are still present
iptables -L