Red Hat Linux Reference Guide 8.0.93
Page 97f (8.3.2. Control Flag)
Not only mention the new control flag syntax for PAM (end of 8.3.2.)
but also describe it.
The new sytax is not used at this time by RHL.
I will look into the matter for next release.
After discussing this with the maintainer, we have decided not to go into any
more detail about the enhanced PAM syntax because it is specific to PAM to Linux.
If this situation changes, I will consider adding more detail on the subject.
If you need more information about the syntax, please see section 4.1 of the
Linux-PAM System Administrators' Guide (currently
Thank you so much for all your help.