diff --git a/xCAT-client/pods/man8/makeknownhosts.8.pod b/xCAT-client/pods/man8/makeknownhosts.8.pod
index d0ab7a20d..254a8a7bb 100644
--- a/xCAT-client/pods/man8/makeknownhosts.8.pod
+++ b/xCAT-client/pods/man8/makeknownhosts.8.pod
@@ -10,8 +10,11 @@ B<makeknownhosts> {B<-h>|B<--help>}
 
 =head1 DESCRIPTION
 
-B<makeknownhosts> builds a known_hosts file in the $ROOTHOME/.ssh directory for all nodes from the input noderange.
-This will avoid having ssh give a warning when nodes are automatically added to the known_hosts file.   This file should be distributed using xdcp to all the nodes,if you want node to node communication not to display the warning. 
+B<makeknownhosts> builds a known_hosts file in the $ROOTHOME/.ssh directory for all nodes from the input noderange. The known_hosts file is built from the 
+shared ssh host key that xCAT distributes to the nodes. To build the key for a
+node, you are only required to have the node in the database and name resolution
+ working for the node. You do not have to be able to access the node. 
+Having this file will avoid the ssh warning when nodes are automatically added to the known_hosts file.   Th file should be distributed using xdcp to all the nodes, if you want node to node communication not to display the warning. 
 
 =head1 OPTIONS