[stgt] initiator-name discriminator for target binding
ogerlitz at voltaire.com
Thu Jun 4 17:03:16 CEST 2009
FUJITA Tomonori wrote:
> Hmm, an initiator box can change the name to log in a target illegally. I think that initiator-name-base binding doesn't mean strict security.
okay, yes, I guess names are easier to spoof then ip addresses, but I am
not suggesting to remove the src ip from tgt ACL mechanism but rather
make optionally to be src ip && iqn based.
> Why VMM can't just store the relationship between a guest and a target name? VMM can do without initiator names, I think. And I think that people usually do: a) each guest has the own IP address and runs the iscsi initiator. or b) VMM runs the initiator and create a file system (could be a SAN FS like vmfs) on it and give a file each guest.
I think that running the initiator from the guest isn't very uncommon
e.g b/c it doesn't go well with live migration, but I will check on
this. When the VMM runs the initiator, there are two schemes, one is
based on cluster file system, and in this case I don't see much need for
multiple initiator names for the same host, but the second scheme is
just providing raw disk to the guest, and in this case, the target admin
would need to assign lun per guest and a unique name would come into
play. Such a scheme is called RDM (Raw Device Mapping) in vmware.
> Note that I'm not against the initiator-name binding. I just want to know how it can be useful.
ofcourse, I am here to respond.
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