[CentOS] firewalld rule syntax

Tue Nov 17 17:29:24 UTC 2015
Nick Bright <nick.bright at valnet.net>

On 11/17/2015 11:12 AM, Nick Bright wrote:
> firewall-cmd --zone=monitoring --add-source=
> firewall-cmd --zone=monitoring --add-service=snmp
> firewall-cmd --zone=monitoring --add-interface=ens192
> firewall-cmd --runtime-to-permanent
I went ahead and tried this and found that the zone and service must 
first be created, which requires use of:

firewall-cmd --new-zone=monitoring --permanent (--permanent is required)
firewall-cmd --new-service=snmp

edit /etc/firewalld/services/snmp.xml:
<?xml version="1.0" encoding="utf-8"?>
<description>Simple Network Management Protocol</description>
<port port="161" protocol="udp" />

firewall-cmd --reload

However, at the end
firewall-cmd --zone=monitoring --add-interface=ens192

This results in a zone conflict. I'm not sure if it's even possible to 
have two zones on the interface.

-  Nick Bright                                -
-  Vice President of Technology               -
-  Valnet -=- We Connect You -=-              -
-  Tel 888-332-1616 x 315 / Fax 620-331-0789  -
-  Web http://www.valnet.net/                 -
- Are your files safe?                        -
- Valnet Vault - Secure Cloud Backup          -
- More information & 30 day free trial at     -
- http://www.valnet.net/services/valnet-vault -

This email message and any attachments are intended solely for the use of the addressees hereof. This message and any attachments may contain information that is confidential, privileged and exempt from disclosure under applicable law. If you are not the intended recipient of this message, you are prohibited from reading, disclosing, reproducing, distributing, disseminating or otherwise using this transmission. If you have received this message in error, please promptly notify the sender by reply E-mail and immediately delete this message from your system.