X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=blobdiff_plain;f=doc%2Fconfig.but;h=5107858c5f54d4f52c2b06927c21466738817108;hb=5471539a6738484b48fb938c88dce547a3e4b299;hp=82656cd27fc4415e859a77dd8cf9984f30a6231d;hpb=9dd9860cc84f82309de64c33e2813c6e9dc60749;p=PuTTY.git

diff --git a/doc/config.but b/doc/config.but
index 82656cd2..5107858c 100644
--- a/doc/config.but
+++ b/doc/config.but
@@ -2353,6 +2353,9 @@ with sharing enabled, then it can act as a downstream and use an
 existing SSH connection set up by an instance of GUI PuTTY. The one
 special case is that PSCP and PSFTP will \e{never} act as upstreams.
 
+It is possible to test programmatically for the existence of a live
+upstream using Plink. See \k{plink-option-shareexists}.
+
 \H{config-ssh-kex} The Kex panel
 
 The Kex panel (short for \q{\i{key exchange}}) allows you to configure