How to open / dd port to firewall ?

 

Add / Open1521 oracle database  default port to Linux 

[root@oraclesrc-5 ~]#

[root@oraclesrc-5 ~]#  firewall-cmd --zone=public --permanent --add-port=1521/tcp

success

[root@oraclesrc-5 ~]#

[root@oraclesrc-5 ~]# firewall-cmd --reload

success

[root@oraclesrc-5~]#