update manpages for showmount and mountd

This patch updates the manpages for showmount and mountd. It adds a
description of the new mountd -r option, and a caveat about the unreliability
of showmount -a.

Signed-off-by: Jeff Layton <jlayton@redhat.com>

diff --git a/utils/mountd/mountd.man b/utils/mountd/mountd.man
index f8646d477670aaf028b01eda63c667e0b631bbb8..4276663fa34ddb8d0dffe6a8a31709168f57519e 100644 (file)
--- a/utils/mountd/mountd.man
+++ b/utils/mountd/mountd.man
@@ -125,6 +125,13 @@ If this option is not specified the default of
 .BR /var/lib/nfs
 is used.
 .TP
+.BI "\-r," "" " \-\-reverse\-lookup"
+mountd tracks IP addresses in the rmtab, and when a DUMP request is made (by
+someone running showmount -a, for instance), it returns IP addresses instead
+of hostnames by default. This option causes mountd to do a reverse
+lookup on each IP address and return that hostname instead. Enabling this can
+have a substantial negative effect on performance in some situations.
+.TP
 .BR "\-t N" " or " "\-\-num\-threads=N"
 This option specifies the number of worker threads that rpc.mountd
 spawns.  The default is 1 thread, which is probably enough.  More

diff --git a/utils/showmount/showmount.man b/utils/showmount/showmount.man
index 5162ba45c2a1c7db5dde838330b6bcefbf9953ca..a2f510fb56177a71152b57f3c0a5111a2e73f695 100644 (file)
--- a/utils/showmount/showmount.man
+++ b/utils/showmount/showmount.man
@@ -25,8 +25,10 @@ appear as though it were processed through ``sort \-u''.
 .SH OPTIONS
 .TP
 .BR \-a " or " \-\-all
-List both the client hostname and mounted directory in
-host:dir format.
+List both the client hostname or IP address and mounted directory in
+host:dir format. This info should not be considered reliable. See the notes
+on rmtab in 
+.BR rpc.mountd (8).
 .TP
 .BR \-d " or " \-\-directories
 List only the directories mounted by some client.