This is a list of URLs for the Bidirectional or Mutual CHAP HOWTOs I’ve posted. This makes it a little easier to find one based on OS name and version.

CentOS 5.10
http://slice2.com/2013/11/17/howto-secure-iscsi-luns-between-centos-linux-5-10-and-netapp-storage-with-mutual-chap/

Debian 7.1
http://slice2.com/2013/09/28/howto-secure-iscsi-luns-between-debian-linux-7-1-and-netapp-storage-with-mutual-chap/

Fedora 20
http://slice2.com/2013/12/21/howto-secure-iscsi-luns-between-fedora-20-and-netapp-storage-with-mutual-chap/

FreeBSD 10
http://slice2.com/2015/02/01/howto-secure-iscsi-luns-between-freebsd-10-1-and-netapp-storage-with-mutual-chap/

Oracle Enterprise Linux 6.5
http://slice2.com/2013/12/14/howto-secure-iscsi-luns-between-oracle-enterprise-linux-6-5-and-netapp-storage-with-mutual-chap/

Oracle Enterprise Linux 7
http://slice2.com/2014/09/01/howto-secure-iscsi-luns-between-oracle-enterprise-linux-7-and-netapp-storage-with-mutual-chap/

Oracle Solaris 10
http://slice2.com/2013/12/27/howto-secure-iscsi-luns-between-oracle-solaris-10-and-netapp-storage-using-bidirectional-chap/

Oracle Solaris 11
http://slice2.com/2014/01/09/howto-secure-iscsi-luns-between-oracle-solaris-11-and-netapp-storage-using-bidirectional-chap/

Red Hat Enterprise Linux 7 (Beta)
http://slice2.com/2014/02/01/howto-secure-iscsi-luns-between-red-hat-enterprise-linux-7-beta-and-netapp-storage-with-mutual-chap/

Ubuntu Server 14.10
http://slice2.com/2014/12/29/howto-secure-iscsi-luns-between-ubuntu-server-14-10-and-netapp-storage-with-mutual-chap/

VMware vSphere 5.1 Update 1c
http://slice2.com/2013/11/29/howto-secure-iscsi-luns-between-vmware-esxi-5-1-and-netapp-storage-with-bidirectional-chap/

Windows 2003, 2008, 2012
http://slice2.com/2013/06/02/configuring-mpio-and-iscsi-mutual-chap-on-windows-2003-windows-2008-and-windows-2012-with-netapp-storage/