Checkmk installation on Rocky Linux 9.3

dnf install epel-release

setsebool -P httpd_can_network_connect 1

firewall-cmd --zone=public --add-service=http --permanent
firewall-cmd --reload

wget https://download.checkmk.com/checkmk/2.2.0p18/check-mk-raw-2.2.0p18-el9-38.x86_64.rpm
yum install check-mk-raw-2.2.0p18-el9-38.x86_64.rpm

omd version
omd create monitoring
omd start monitoring

http://localhost.localdomain/monitoring/
user: cmkadmin with password: <given>

omd su monitoring (For command line administration of the site.)
cmk-passwd cmkadmin (After logging in, you can change the password for cmkadmin with.)

(optional)
omd status
omd sites
omd help

(optional for after reboot if you get the error: Unable to connect)
omd update-apache-config monitoring