http://piszczynski.com/index.php?action=history&feed=atom&title=Firewalld 2026-10-25T19:12:46Z Revision history for this page on the wiki MediaWiki 1.40.1 http://piszczynski.com/index.php?title=Firewalld&diff=1155&oldid=prev 2026-02-04T15:53:29Z

<p>Created page with &quot;== Edit firewalld service on redhat linux == Check service:&lt;syntaxhighlight lang=&quot;bash&quot;&gt; sudo firewall-cmd --state # check service state systemctl status firewalld # check service is running &lt;/syntaxhighlight&gt;Check Firewall rules:&lt;syntaxhighlight lang=&quot;bash&quot;&gt; sudo firewall-cmd --get-active-zones # list active zones sudo firewall-cmd --list-all # list firewall rules sudo firewall-cmd --list-ports # list only open ports sudo firewall-cmd --list-services # list allowed...&quot;</p> <p><b>New page</b></p><div>== Edit firewalld service on redhat linux ==<br /> Check service:&lt;syntaxhighlight lang=&quot;bash&quot;&gt;<br /> sudo firewall-cmd --state # check service state<br /> <br /> systemctl status firewalld # check service is running<br /> &lt;/syntaxhighlight&gt;Check Firewall rules:&lt;syntaxhighlight lang=&quot;bash&quot;&gt;<br /> sudo firewall-cmd --get-active-zones # list active zones<br /> <br /> sudo firewall-cmd --list-all # list firewall rules<br /> <br /> sudo firewall-cmd --list-ports # list only open ports<br /> <br /> sudo firewall-cmd --list-services # list allowed services<br /> <br /> <br /> &lt;/syntaxhighlight&gt;Add port to allow on firewall:&lt;syntaxhighlight lang=&quot;bash&quot;&gt;<br /> sudo firewall-cmd --add-port=&lt;port number&gt;/tcp # add port<br /> <br /> <br /> sudo firewall-cmd --add-port=&lt;port number&gt;/tcp --permanent # add port permenatly<br /> sudo firewall-cmd --reload # reload service to apply change<br /> <br /> &lt;/syntaxhighlight&gt;Add firewall rules as services:<br /> <br /> Check service files:&lt;syntaxhighlight lang=&quot;bash&quot;&gt;<br /> cat /etc/firewalld/services/&lt;servicename&gt;.xml # check service file<br /> <br /> nano /etc/firewalld/services/&lt;servicename&gt;.xml # create new service file<br /> <br /> #example xml defining the service<br /> &lt;service&gt;<br /> &lt;short&gt;Service Name&lt;/short&gt;<br /> &lt;description&gt;Description of the service&lt;/description&gt;<br /> &lt;port protocol=&quot;tcp&quot; port=&quot;&lt;port numbers&gt;&quot;/&gt;<br /> &lt;/service&gt;<br /> <br /> firewall-cmd --reload # reload so firewalld can see the service<br /> <br /> firewall-cmd --zone=public --add-service=&lt;service name&gt; --permanent # apply the service to the &quot;public zone&quot;<br /> <br /> firewall-cmd --reload # reload to apply the change<br /> <br /> firewall-cmd --zone=public --list-services # check active services to confirm change<br /> &lt;/syntaxhighlight&gt;</div>

Aleks