Apache's order/allow/deny Truth Table (fwd)

[Rob Hartill <ro...@imdb.com>]

I thik he's suggesting this be added to the docs.

(note the 'tenon' sender :-)


---------- Forwarded message ----------
Date: Tue, 27 May 1997 21:57:27 -0700
From: Brent Holland <br...@tenon.com>
To: apache-bugs@mail.apache.org
Subject: Apache's order/allow/deny Truth Table

Forwarded from neil@tenon.com (Neil CutCliffe):

Being confused about the meaning of the "mutual-failure"
mode for Apache's "order" directive, I experimented with
each possible combination and filled in the following
Truth table.

In the first two rows (4 combinations for allow and deny):
    1 - directive (allow or deny) is true for my client
    0 - otherwise

In the latter three rows (each mode of "order" directive):
    1 - access using the above allow and deny combination
        succeeded for that "order".
    0 - access failed

+-----------------+-----+-----+-----+-----+
| allow           |  0  |  1  |  0  |  1  |
| deny            |  0  |  0  |  1  |  1  |
+-----------------+-----+-----+-----+-----+
| allow/deny      |  0  |  1  |  0  |  0  |
| deny/allow      |  1  |  1  |  0  |  1  |
| mutual-failure  |  0  |  1  |  0  |  0  |
+-----------------+-----+-----+-----+-----+

For my experiments, "allow/deny" and "mutual-failure"
yeild the same results.  The "mutual-failure" appears
to be redundant and therefore unnecessary.  


Neil Cutcliffe                                neil@tenon.com
Tenon Intersystems                            http://www.tenon.com
1123 Chapala St. Suite 200                    805 963 6983
Santa Barbara, CA 93101                       805 962 8202 fax