diff -u etc.orig/c2s.xml.dist.in etc/c2s.xml.dist.in
--- etc.orig/c2s.xml.dist.in	Fri Nov 12 15:51:40 2004
+++ etc/c2s.xml.dist.in	Fri Nov 12 16:00:17 2004
@@ -91,6 +91,12 @@
     <pemfile>@sysconfdir@/server.pem</pemfile>
     -->
 
+    <!-- File containing an optional SSL certificate chain file for client
+         SSL connections. -->
+    <!--
+    <cachain>@sysconfdir@/cachain.pem</cachain>
+    -->
+
     <!-- Require STARTTLS. If this is enabled, clients must do STARTTLS
          before they can authenticate. Until the stream is encrypted,
          all packets will be dropped. -->
diff -u etc.orig/s2s.xml.dist.in etc/s2s.xml.dist.in
--- etc.orig/s2s.xml.dist.in	Fri Nov 12 15:51:40 2004
+++ etc/s2s.xml.dist.in	Fri Nov 12 15:55:05 2004
@@ -89,6 +89,15 @@
     <!--
     <secret>secret</secret>
     -->
+
+    <!-- File containing a SSL certificate and private key to use when setting 
+         up encrypted s2s connections with other servers (STARTTLS + Dialback).
+         If this is commented out, or the file can't be read, no attempt will be
+         made to establish encrypted connections with other servers. -->
+    <!--
+    <pemfile>@sysconfdir@/server.pem</pemfile>
+    -->
+
   </local>
 
   <!-- Timed checks -->