Hello Christophe, Thanks for your answer. > Also be sure to correctly configure the ACLs for your iSCSI target. You > have two options : > > 1/ Explicitly set the list of initiators that can login to the target. > To do that, you create a ACL under the target with `targetcli`. This > is what you did with ACL "iqn.2015-06.com.foobar:www.test.com". The > ACL should match the content of /etc/iscsi/initiatorname.iscsi on > the initiator machine. The file /etc/iscsi/initiatorname.iscsi on my server machine 10.0.0.60 is as follows: InitiatorName=iqn.1994-05.com.redhat:168be03a7484 Therefore I issued the following commands on targetcli: /iscsi/iqn.20...t01/tpg1/acls> create iqn.1994-05.com.redhat:168be03a7484 Created Node ACL for iqn.1994-05.com.redhat:168be03a7484 Created mapped LUN 0. /iscsi/iqn.20...t01/tpg1/acls> cd iqn.1994-05.com.redhat:168be03a7484/ /iscsi/iqn.20...:168be03a7484> set auth userid=foo Parameter userid is now 'foo'. /iscsi/iqn.20...:168be03a7484> set auth password=bar Parameter password is now 'bar'. /iscsi/iqn.20...:168be03a7484> exit However, I still have an authentication error when I try to connect via iscsiadm: iscsiadm -m node --targetname "iqn.2015-06.com.foobar:target01" --portal "10.0.0.60:3260" --login Logging in to [iface: default, target: iqn.2015-06.com.foobar:target01, portal: 10.0.0.60,3260] (multiple) iscsiadm: Could not login to [iface: default, target: iqn.2015-06.com.foobar:target01, portal: 10.0.0.60,3260]. iscsiadm: initiator reported error (24 - iSCSI login failed due to authorization failure) iscsiadm: Could not log into all portals Any idea on how to proceed? Here's the guides I have been following: http://www.server-world.info/en/note?os=CentOS_7&p=iscsi http://linux-iscsi.org/wiki/Targetcli http://www.cyberciti.biz/tips/rhel-centos-fedora-linux-iscsi-howto.html but they are very fragmentary and incomplete. For instance, there's no mention of the fact that the ACL has to match /etc/iscsi/initiatorname.iscsi. I am very disappointed to find that there's a general lack of documentation for iSCSI. If you could point me to some decent docs, I will be very grateful. Thanks again, Dan -- To unsubscribe from this list: send the line "unsubscribe target-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html