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-rw-r--r--utils/gssd/gssd.man8
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diff --git a/utils/gssd/gssd.man b/utils/gssd/gssd.man
index 8fa4f4a..e4f68f9 100644
--- a/utils/gssd/gssd.man
+++ b/utils/gssd/gssd.man
@@ -86,6 +86,14 @@ Increases the verbosity of the output (can be specified multiple times).
.B -r
If the rpcsec_gss library supports setting debug level,
increases the verbosity of the output (can be specified multiple times).
+.TP
+.B -t timeout
+Timeout, in seconds, for kernel gss contexts. This option allows you to force
+new kernel contexts to be negotiated after
+.I timeout
+seconds, which allows changing Kerberos tickets and identities frequently.
+The default is no explicit timeout, which means the kernel context will live
+the lifetime of the Kerberos service ticket used in its creation.
.SH SEE ALSO
.BR rpc.svcgssd(8)
.SH AUTHORS