TargetCLI

Install targetcli

yum install targetcli -y 
systemctl enable target 
systemctl start target

Configure targetlci

Use the "cd' command (no args) inside target cli to browse through the paths

targetcli

cd /backstores/block/
create disk0 /dev/sdb

cd /iscsi 
/iscsi> create

cd /iscsi/.../tpg1/acls
create iqn.1991-05.com.microsoft:node01.example.local
create iqn.1991-05.com.microsoft:node02.example.local

cd /iscsi/iqn..../tpg1/luns
create /backstores/block/disk0

exit

Configure firewall

systemctl start firewalld

firewall-cmd --list-all

firewall-cmd --permanent --zone=internal --add-interface=eth0
firewall-cmd --permanent --zone=public --add-interface=eth1

firewall-cmd --permanent --zone=internal --add-source=10.0.0.0/24
firewall-cmd --permanent --zone=internal --add-port=3260/tcp

firewall-cmd --permanent --zone=public --add-source=1.1.1.1/32
firewall-cmd --permanent --zone=public --add-port=22/tcp

firewall-cmd --reload

systemctl enable firewalld