View source for Additional Firewall-Cmd Commands

''<span style="color:#009999"># Basic firewall-cmd setups</span>''<syntaxhighlight lang="shell">
sudo firewall-cmd --zone=public --add-port=22/tcp --permanent
sudo firewall-cmd --zone=public --add-port=80/tcp --permanent
sudo firewall-cmd --zone=public --add-port=443/tcp --permanent
sudo firewall-cmd --zone=public --add-port=8080/tcp --permanent
sudo firewall-cmd --zone=public --add-port=10000/tcp --permanent
sudo firewall-cmd --reload
</syntaxhighlight>''<span style="color:#009999"># Zimbra firewall-cmd setups</span>''<syntaxhighlight lang="shell">
sudo firewall-cmd --zone=public --add-port=25/tcp --permanent
sudo firewall-cmd --zone=public --add-port=80/tcp --permanent
sudo firewall-cmd --zone=public --add-port=110/tcp --permanent
sudo firewall-cmd --zone=public --add-port=143/tcp --permanent
sudo firewall-cmd --zone=public --add-port=443/tcp --permanent
sudo firewall-cmd --zone=public --add-port=465/tcp --permanent
sudo firewall-cmd --zone=public --add-port=587/tcp --permanent
sudo firewall-cmd --zone=public --add-port=993/tcp --permanent
sudo firewall-cmd --zone=public --add-port=995/tcp --permanent
sudo firewall-cmd --zone=public --add-port=7071/tcp --permanent
sudo firewall-cmd --zone=public --add-port=7110/tcp --permanent
sudo firewall-cmd --zone=public --add-port=7143/tcp --permanent
sudo firewall-cmd --zone=public --add-port=7993/tcp --permanent
sudo firewall-cmd --zone=public --add-port=7995/tcp --permanent
sudo firewall-cmd --zone=public --add-port=8080/tcp --permanent
sudo firewall-cmd --zone=public --add-port=8443/tcp --permanent
sudo firewall-cmd --zone=public --add-port=9071/tcp --permanent
sudo firewall-cmd --reload
</syntaxhighlight>''<span style="color:#009999"><nowiki>#</nowiki> Query Firewall Settings</span>''<syntaxhighlight lang="shell">
firewall-cmd --list-all
firewall-cmd --list-all-zones
firewall-cmd --get-default-zone
firewall-cmd --get-active-zones
firewall-cmd --list-services
firewall-cmd --list-ports
firewall-cmd --zone=public --list-services
firewall-cmd --zone=internal --list-services
</syntaxhighlight>''<span style="color:#009999"><nowiki>#</nowiki> Add Permanently to Public Zone''

<code>sudo firewall-cmd --permanent --zone=public --add-service=http --add-service=https && sudo firewall-cmd --reload</code>
''<span style="color:#009999"># Add Temporarily to Internal Zone</span>''<syntaxhighlight lang="shell">
firewall-cmd --zone=internal --add-service=ssh
firewall-cmd --zone=internal --add-source=53.52.51.50/16 --permanent
firewall-cmd --zone=internal --add-source=100.99.98.97/16 --permanent
firewall-cmd --zone=public --remove-service=ssh
firewall-cmd --zone=public --remove-port=22/tcp
</syntaxhighlight>''<span style="color:#009999"># Commit Temporary Changes Permanently</span>''
<code>firewall-cmd --runtime-to-permanent</code>

''<span style="color:#009999"># Remove an IP from Allowed IPs</span>''

<code>firewall-cmd --zone=internal --remove-source=100.99.98.97/16</code>

''<span style="color:#009999"># DOCKER FIREWALLD</span>''

''<span style="color:#009999"># Masquerading allows for docker ingress and egress (this is the juicy bit)</span>''

<code>firewall-cmd --zone=public --add-masquerade --permanent</code>

''<span style="color:#009999"># Specifically allow incoming traffic on port 80/443 (nothing new here)</span>''

<code>firewall-cmd --zone=public --add-port=80/tcp</code>

<code>firewall-cmd --zone=public --add-port=443/tcp</code>

''<span style="color:#009999"># Reload firewall to apply permanent rules</span>''

<code>firewall-cmd --reload</code>

''<span style="color:#009999"># docker firewalld 2</span>''

''<span style="color:#009999"># Check what interface docker is using, e.g. 'docker0'</span>''

<code>ip link show</code>

''<span style="color:#009999"># Check available firewalld zones, e.g. 'public'</span>''

<code>sudo firewall-cmd --get-active-zones</code>

''<span style="color:#009999"># Check what zone the docker interface it bound to, most likely 'no zone' yet</span>''

<code>sudo firewall-cmd --get-zone-of-interface=docker0</code>

''<span style="color:#009999"># So add the 'docker0' interface to the 'public' zone. Changes will be visible only after firewalld reload</span>''

<code>sudo nmcli connection modify docker0 connection.zone public</code>

''<span style="color:#009999"># Masquerading allows for docker ingress and egress (this is the juicy bit)</span>''

<code>sudo firewall-cmd --zone=public --add-masquerade --permanent</code>

''<span style="color:#009999"># Optional open required incomming ports (wasn't required in my tests)</span>''

<code>sudo firewall-cmd --zone=public --add-port=443/tcp</code>

''<span style="color:#009999"># Reload firewalld</span>''

<code>sudo firewall-cmd --reload</code>

''<span style="color:#009999"># Reload dockerd</span>''

<code>sudo systemctl restart docker</code>