On 07/03/23, Darren Tucker (dtucker@xxxxxxxxxxx) wrote: > On Tue, 7 Mar 2023 at 05:26, Andy Lutomirski <luto@xxxxxxxxxx> wrote: > [...] > > ssh_config contains a Match ... exec [command to refresh the certificate]. > > This sort of works, except that it runs the command far too frequently. > > For example, ssh -O exit [name] refreshes the certificate, and it should > > not do so. > > You can have the command check if the cert is expired or near expired > before refreshing it. I've done this in the past with expiring > certificates. I was intrigued by Darren's note about a command to check certificate expiry. I've put together a quick POC in go to list expiring certificates: https://gist.github.com/rorycl/d194243c61b349021935c97f751a931e Output is something like: 0 key ssh-ed25519 : is not a certificate 1 key ssh-ed25519-cert-v01@xxxxxxxxxxx comment: acmeinc_briony_from:2023-03-07T08:18_to:2023-03-07T11:18UTC validity: 2023-03-07 08:37:23 GMT to 2023-03-07 11:37:23 GMT expiring in 60m? true I'd be grateful to Andy if he explained what sort of command he runs to refresh certificates. I understood most refresh arrangements to involve OAuth2. Rory _______________________________________________ openssh-unix-dev mailing list openssh-unix-dev@xxxxxxxxxxx https://lists.mindrot.org/mailman/listinfo/openssh-unix-dev
