This video provides an introduction to using the firewalld utility on Oracle Linux.

00:00 firewalld introduction
00:58 firewalld.conf
01:21 Check firewalld package and service
02:00 firewall-cmd command options
02:27 Show firewall state
02:40 Firewall zones
03:36 Services
04:07 Custom services
04:26 Enable a service
06:07 Add port and protocol
06:41 Remove port and protocol
07:11 Promote runtime config to permanent

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https://www.oracle.com/goto/oraclelin...

For Oracle Linux documentation:
https://docs.oracle.com/en/operating-...

Lots more training content at Oracle Linux Training Station:
https://www.oracle.com/goto/oltrain

Free Oracle Linux Learning Labs:
http://www.oracle.com/goto/linuxluna
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