f2433b8091
Let's Encrypt planned the transition to ISRG's root certificate ("ISRG Root
X1") on July 8, 2019, but postponed several times.
Finally they found another solution: A certificate 'ISRG Root X1', but
cross-signed with 'DST Root CA X3' and with a livetime that exceeds that
of the root CA. This is said to work for most operating system where root
certificate authorities are just 'trust anchors'.
I doubt this is true for RouterOS, where certificates are just imported
into the certificate store. So let's migrate to 'ISRG Root X1' now.
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|---|---|---|
| .. | ||
| Cloudflare Inc ECC CA-3.pem | ||
| DigiCert ECC Secure Server CA.pem | ||
| E1.pem | ||
| GTS CA 1O1.pem | ||
| Go Daddy Secure Certificate Authority - G2.pem | ||
| R3.pem | ||
| Starfield Secure Certificate Authority - G2.pem | ||