diff --git a/texi/gnus.texi b/texi/gnus.texi
index d81b9ba..3b6e9b7 100644
--- a/texi/gnus.texi
+++ b/texi/gnus.texi
@@ -13877,12 +13877,30 @@ a mail back end that has gotten out of sync.
 @item z
 @kindex z (Server)
 @findex gnus-server-compact-server
-
 Compact all groups in the server under point
 (@code{gnus-server-compact-server}).  Currently implemented only in
 nnml (@pxref{Mail Spool}).  This removes gaps between article numbers,
 hence getting a correct total article count.
 
+@item C
+@kindex C (Server)
+@findex gnus-server-close-server
+Close the server under point.  When trying to get new messages, Gnus
+will try to re-open closed servers.
+
+@item D
+@kindex D (Server)
+@findex gnus-server-deny-server
+Mark the server under point as unreachable.  In contrast to closed
+servers, Gnus won't try to re-open denied servers, so this is the
+right thing if you want to disable some servers explicitly due to low
+network bandwidth or general information overload.
+
+@item O
+@kindex O (Server)
+@findex gnus-server-open-server
+Try to re-connect to the server under point.
+
 @end table