After configuring the service firewalld in 2 of the 3 app servers, I received the following error message while trying to start the firewalld service on stapp03:
I pressed “try it later” button so I can try again when I’m at home (I was running out on time). At this point the only output I have from the firewalld status are the first lines in my screenshot.
So, tried again, first two servers no problems whatsoever (I used a different order this time stapp03; stapp01) but when I got to stapp02, installed firewalld, no errors during start of service, but again, when I run systemctl status firewalld, I get an error.
(also tried with service firewalld start & then status with same results)
@swaroopcs88
In this question you do not need to change anything in nginx/apache configuration file, the key is that you must use firewall-cmd " rich-rules"