This note was initiated after my unsuccessful attempt to login into ReadyNAS iSCSI target from Fedora 35. Actually this task is very simple but following to standard prescription (e.g. https://www.server-world.info/en/note?os=Fedora_34&p=iscsi&f=3 ) fails with login error 19 or 24 dependent on LUN configuration: any or specific initiators are allowed. Apropriative changing in iscsi.conf file and restarting iscsid daemon do not solve the problem. Workaround is rather simple. Without any modification of iscsi.conf you have to create new file /etc/iscsi/nodes/iqn.target/ip_target:3260,1/default with content: node.session.auth.username = iqn.initiator node.session.auth.password = rnas_password_for_LUN Additionally, in LUN properties on ReadyNAS one have to add an initiator with iqn.initiator name and rnas_password_for_LUN password.