Thank you, Ken I can live with that warning message, the problem is that the newcomer would not be positively impressed (I guess).
Is there a reason why Let's encrypt cannot be used to get a cert for us.metamath.org ? (it looks like it's the most common result from Google). And, if I'm not mistaken, Let's encrypt allows for wildcard certs, now: https://community.letsencrypt.org/t/acme-v2-production-environment-wildcards/55578 Thanks again Glauco Il giorno sabato 11 dicembre 2021 alle 16:49:49 UTC+1 Ken Kubota ha scritto: > The certificate is issued for ssl.metamath.org only. > > You should add us.metamath.org (and possible other domains) as > alternative DNS extension. > I believe this is the correct link: > https://certbot.eff.org/faq/#can-i-get-certificate-for-multiple-domain-names-san-certificates > > ____________________________________________________ > > Ken Kubota > https://doi.org/10.4444/100 > > > > Am 11.12.2021 um 16:38 schrieb Glauco <[email protected]>: > > Am I the only one getting an invalid cert error? > > This is not new, but I've never written about it before. > > I've tried Chrome and Edge on Win10 and Firefox on Linux. Similar errors. > > I can go beyond the warning messages, selecting kind of "go on anyway (go > back recommended)" options. > > The timespan is valid, I've not investigated if the root CA or the > intermediate cert is the "invalid" one. > > Below, the details from Firefox under Linux ("requested domain name does > not match the server’s certificate") > > Glauco > > *** detailed error message from Firefox under Linux *** > > https://us.metamath.org/mpeuni/supxrleub.html > > > > Unable to communicate securely with peer: requested domain name does not > match the server’s certificate. > > > > HTTP Strict Transport Security: false > > HTTP Public Key Pinning: false > > > > Certificate chain: > > > > -----BEGIN CERTIFICATE----- > > MIIFJjCCBA6gAwIBAgISBFunoJW6i3kKnjubLKCE0TeeMA0GCSqGSIb3DQEBCwUA > > MDIxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MQswCQYDVQQD > > EwJSMzAeFw0yMTExMDIyMjA1NDBaFw0yMjAxMzEyMjA1MzlaMBsxGTAXBgNVBAMT > > 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