Mention KRB5CCNAME in the aklog man page

AFS users not otherwise familiar with Kerberos may not realize that
one sets KRB5CCNAME to use an alternative ticket cache.  Mention the
variable in the aklog man page, although defer to the Kerberos
documentation for most details.

Reviewed-on: http://gerrit.openafs.org/2761
Reviewed-by: Andrew Deason <adeason@sinenomine.net>
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Rod Widdowson <rdw@steadingsoftware.com>
Reviewed-by: Russ Allbery <rra@stanford.edu>
(cherry picked from commit 089cd2c1039315fe400f85eec1c9f2152ea090c7)

Change-Id: I0428c8c4dc7f6b1f667e69b571be944777bcb057
Reviewed-on: http://gerrit.openafs.org/4002
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Derrick Brashear <shadow@dementia.org>

diff --git a/doc/man-pages/pod1/aklog.pod b/doc/man-pages/pod1/aklog.pod
index 3709397463ddadb254aa9b95476db79da80a90e3..ab0ad192acd92645e734c2f1022b64190805acb7 100644 (file)
--- a/doc/man-pages/pod1/aklog.pod
+++ b/doc/man-pages/pod1/aklog.pod
@@ -152,6 +152,20 @@ where <instance> is the instance of a class C<filsrv> Zephyr subscription.
 
 =back
 
+=head1 ENVIRONMENT
+
+=over 4
+
+=item KRB5CCNAME
+
+As with most programs that use an existing Kerberos ticket cache, B<aklog>
+can be told to use a cache other than the default by setting the
+environment variable KRB5CCNAME.  On UNIX and Linux systems, this variable
+is normally set to a file name, but may point to other types of caches.
+See the documentation of your Kerberos implementation for more details.
+
+=back
+
 =head1 FILES
 
 =over 4