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pvecm: improve SSH section

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reword some parts, fix wrong information about port forwarding

Signed-off-by: Fabian Grünbichler <f.gruenbichler@proxmox.com>
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Fabian Grünbichler 2020-11-25 12:41:16 +01:00
parent 8cd6f474a4
commit 4e8fe2a959
1 changed files with 10 additions and 8 deletions
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pvecm.adoc
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@ -872,17 +872,19 @@ If you see a healthy cluster state, it means that your new link is being used.
Role of SSH in {PVE} Clusters
-----------------------------
{PVE} utilizes SSH tunnels for various operations.
{PVE} utilizes SSH tunnels for various features.
* Proxying terminal sessions of node and containers between nodes
* Proxying console/shell sessions (node and guests)
+
When you connect another nodes shell through the web interface, for example, a
non-interactive SSH tunnel is started in order to forward the necessary ports
for the VNC connection.
When using the shell for node B while being connected to node A, connects to a
terminal proxy on node A, which is in turn connected to the login shell on node
B via a non-interactive SSH tunnel.
* VM and CT memory and local-storage migration, if the cluster wide migration
settings are not configured 'insecure' mode. During a VM migration an SSH
tunnel is established between the target and source nodes.
* VM and CT memory and local-storage migration in 'secure' mode.
+
During the migration one or more SSH tunnel(s) are established between the
source and target nodes, in order to exchange migration information and
transfer memory and disk contents.
* Storage replication