Monthly Archives: December 2021

R3 certificate expired error (seen on older mac connecting to Debian 10 server)

/etc/ca-certificates.conf->Set 2 certs for removal by adding “!” in front of their lines:!mozilla/DST_Root_CA_X3.crt!mozilla/ISRG_Root_X1.crt (This can be done with GUI: dpkg-reconfigure ca-certificates) Then run certificates update:update-ca-certificates

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