In&nbsp;https://github.com/gluster/gluster-ansible-infra there is an example with :<div id="yMail_cursorElementTracker_1622653201400">vars:</div><div id="yMail_cursorElementTracker_1622653201400">&nbsp; &nbsp; &nbsp;# Firewall setup</div><div id="yMail_cursorElementTracker_1622653213527">&nbsp; &nbsp; &nbsp;gluster_infra_fw_ports:</div><div id="yMail_cursorElementTracker_1622653216410">&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;- 5900-6923/tcp</div><div id="yMail_cursorElementTracker_1622653234430"><br></div><div id="yMail_cursorElementTracker_1622653234670">Maybe that's causing the problem ?</div><div id="yMail_cursorElementTracker_1622653244555"><br></div><div id="yMail_cursorElementTracker_1622653244773"><br></div><div id="yMail_cursorElementTracker_1622653244962">Best Regards,</div><div id="yMail_cursorElementTracker_1622653248773">Strahil Nikolov</div>