Re: Host key verification (known_hosts) with ProxyJump/ProxyCommand

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On Fri, 18 Aug 2023 at 18:38, Jochen Bern <Jochen.Bern@xxxxxxxxx> wrote:
[...]
> If I understand correctly, you need to *know* the target system's local
> 172-ish IP to be able to log in.

No, the client doesn't need to know the server's address.   By default
non-fully-qualified hostnames will be passed to the Jumphost to be
resolved there (subject to the CanonicalDomains and Canonicalized.*
settings) and you also have the option of setting "ProxyCommand ssh -W
..." yourself.

See https://github.com/openssh/openssh-portable/blob/master/ssh.c#L461

-- 
Darren Tucker (dtucker at dtucker.net)
GPG key 11EAA6FA / A86E 3E07 5B19 5880 E860  37F4 9357 ECEF 11EA A6FA
    Good judgement comes with experience. Unfortunately, the experience
usually comes from bad judgement.
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