document #2247: add info about SSH fingerprints on cluster leave

Signed-off-by: Stefan Reiter <s.reiter@proxmox.com>

diff --git a/pvecm.adoc b/pvecm.adoc
index 7525bb5dacc98dc23c84f4aadc09b4d7d359bf50..d8f2341085a40ec8e9503cfdd1aff4e813ceaaaf 100644 (file)
--- a/pvecm.adoc
+++ b/pvecm.adoc
@@ -309,6 +309,11 @@ cluster again, you have to
 
 * then join it, as explained in the previous section.
 
 
 * then join it, as explained in the previous section.
 

+NOTE: After removal of the node, its SSH fingerprint will still reside in the
+'known_hosts' of the other nodes. If you receive an SSH error after rejoining
+a node with the same IP or hostname, run `pvecm updatecerts` once to update
+the fingerprint on all nodes.
+

 [[pvecm_separate_node_without_reinstall]]
 Separate A Node Without Reinstalling
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 [[pvecm_separate_node_without_reinstall]]
 Separate A Node Without Reinstalling
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~