Hoping someone can provide a quick answer to this.
I've installed csf on amazon linux 2 latest version. When attempting to start it it's failing with the following message:
Oct 07 15:32:54 dev-ci-single-11.189 csf[17949]: open3: exec of is-active firewalld failed at /usr/sbin/csf line 906.
Oct 07 15:32:54 dev-ci-single-11.189 systemd[1]: csf.service: main process exited, code=exited, status=2/INVALIDARGUMENT
Oct 07 15:32:54 dev-ci-single-11.189 systemd[1]: Failed to start ConfigServer Firewall & Security - csf.
[root@dev-ci-single-11 csf]# systemctl status firewalld.service
● firewalld.service
Loaded: masked (/dev/null; bad)
Active: inactive (dead)
I've tried a bunch of different things without any luck.
[root@dev-ci-single-11 csf]# uname -a
Linux dev-ci-single-11.189 4.14.146-119.123.amzn2.x86_64 #1 SMP Mon Sep 23 16:58:43 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux