SIRIS, ALTO, and NAS: iSCSI share settings

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This article explains the access control settings for a SIRIS iSCSI share.

Environment

  • Datto SIRIS
  • Datto ALTO
  • Datto NAS

Description

CHAP Authentication

The only access control list setting for iSCSI shares is CHAP Authentication.

Figure 1: CHAP Authentication (click to enlarge)

CHAP provides two levels of security: 

  • One-way CHAP authentication: Only the remote client (the initiator) needs to provide a password to start a logon session with your share (the target).
  • Mutual CHAP authentication: Requires that both the client (the initiator) and your share (the target) authenticate each other.

chap.pngFigure 2: Mutual CHAP authentication (click to enlarge)

For Mutual CHAP authentication to work correctly, the CHAP secret and Mutual CHAP secret must not be the same.

Once you have configured your desired level of CHAP configuration on the backup appliance, configure the CHAP settings in iSCSI initiator for your environment. Contact the publisher of your initiator's operating system if you require assistance with server-side CHAP configuration.


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