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-rw-r--r--src/clients/kvno/kvno.M14
1 files changed, 14 insertions, 0 deletions
diff --git a/src/clients/kvno/kvno.M b/src/clients/kvno/kvno.M
index b7e4d46a0d..37b0bcbd53 100644
--- a/src/clients/kvno/kvno.M
+++ b/src/clients/kvno/kvno.M
@@ -51,6 +51,13 @@ suppress printing
.B \-h
prints a usage statement and exits
.TP
+.B \-P
+specifies that the
+.B service1 service2 ...
+arguments are to be treated as services for which credentials should
+be acquired using constrained delegation. This option is only valid
+when used in conjunction with protocol transition.
+.TP
.B \-S sname
specifies that krb5_sname_to_principal() will be used to build
principal names. If this flag is specified, the
@@ -59,6 +66,13 @@ arguments are interpreted as hostnames (rather than principal names),
and
.B sname
is interpreted as the service name.
+.TP
+.B \-U for_user
+specifies that protocol transition (S4U2Self) is to be used to acquire
+a ticket on behalf of
+.B for_user.
+If constrained delegation is not requested, the service name
+must match the credentials cache client principal.
.SH ENVIRONMENT
.B Kvno
uses the following environment variable: