[pve-devel] [PATCH docs 2/2] ssh: document PVE-specific setup

[Fabian Grünbichler]

> Esi Y via pve-devel <pve-devel at lists.proxmox.com> hat am 12.01.2024 13:33 CET geschrieben:
> On Thu, Jan 11, 2024 at 11:51:20AM +0100, Fabian Grünbichler wrote:
> > such as adapted configs and managed files.
> > 
> > Signed-off-by: Fabian Grünbichler <f.gruenbichler at proxmox.com>
> > ---
> > Notes: actual version needs to be inserted!
> > 
> >  pvecm.adoc | 18 ++++++++++++++++++
> >  1 file changed, 18 insertions(+)
> > 
> > diff --git a/pvecm.adoc b/pvecm.adoc
> > index 5b5b27b..3a32cfb 100644
> > --- a/pvecm.adoc
> > +++ b/pvecm.adoc
> > @@ -918,6 +918,24 @@ transfer memory and disk contents.
> >  
> >  * Storage replication
> >  
> > +SSH setup
> > +~~~~~~~~~
> > +
> > +On {pve} systems, the following changes are made to the SSH configuration/setup:
> > +
> > +* the `root` user's SSH client config gets setup to prefer `AES` over `ChaCha20`
> > +
> > +* the `root` user's `authorized_keys` file gets linked to
> > +  `/etc/pve/priv/authorized_keys`, merging all authorized keys within a cluster
> 
> Will you be opening a new fix # thread on this one or intending to keep it as-is (even as the known_hosts changes are rolled out)?

see the cover letter - if this series gets applied in its current form, then changing the (client) key setup (both the keys used, and the authorized keys handling) would be a potential (but not required) follow-up. the main issue with that is that setups out there might rely on the current behaviour (e.g., ssh-copy-id to one node registering the key automatically with all nodes in the cluster), so it's likely only possible to switch by default on the next major bump, if we decide to go down that route.