openssh bugs - Dec 2024 - [Bug 3768] New: Whether to add a switch to control whether to enable the hostkeys rotation mechanism.

https://bugzilla.mindrot.org/show_bug.cgi?id=3768

            Bug ID: 3768
           Summary: Whether to add a switch to control whether to enable
                    the hostkeys rotation mechanism.
           Product: Portable OpenSSH
           Version: 9.9p1
          Hardware: Other
                OS: Linux
            Status: NEW
          Severity: enhancement
          Priority: P5
         Component: sshd
          Assignee: unassigned-bugs at mindrot.org
          Reporter: bty at mail.ustc.edu.cn

If the public key configuration file is not specified, sshd polls all
public keys, which affects the SCP performance in scenarios where
multiple small files are transmitted. Whether to add a switch to
control whether to enable the public key rotation mechanism.

https://github.com/openssh/openssh-portable/blob/826483d51a9fee60703298bbf839d9ce37943474/sshd-session.c#L577

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https://bugzilla.mindrot.org/show_bug.cgi?id=3768

Damien Miller <djm at mindrot.org> changed:

           What    |Removed                     |Added
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                 CC|                            |djm at mindrot.org

--- Comment #1 from Damien Miller <djm at mindrot.org> ---
This is possible on the client using UpdateHostkeys=no

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