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<tr> <td>'''Don't Panic if disconnected from a VM'''</td><td> Some of the traffic between your host and VirtManager goes through IPtables.<br> When you mess with IPtables rules on the host, you might end up losing the console connection to the virtual machines.<br>'''Don't worry, iptables rules are still running and you can still use them'''.</td></tr>
<tr> <td>'''If your most recent iptables Rule messes up your system'''</td><td>'''Reload the default rules'''. You can do that by restarting the iptables service and libvirtd services (you can also do that at the beginning of your shell script).<br>Then '''run your script with all the working iptables commands''' that you already finished.<br>'''Return to work on creating the rule that didn't work'''.</td></tr>
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===Creating Customized Chains===