René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Test certificates expired (again)","articleBody":"```\r\n$ ./scripts/openssl_https_server.sh\r\nUsing default temp DH parameters\r\nACCEPT\r\n139899582240576:error:14094418:SSL routines:ssl3_read_bytes:tlsv1 alert unknown ca:ssl/record/rec_layer_s3.c:1543:SSL alert number 48\r\n139899582240576:error:14094415:SSL routines:ssl3_read_bytes:sslv3 alert certificate expired:ssl/record/rec_layer_s3.c:1543:SSL alert number 45\r\n139899582240576:error:14094415:SSL routines:ssl3_read_bytes:sslv3 alert certificate expired:ssl/record/rec_layer_s3.c:1543:SSL alert number 45\r\n139899582240576:error:14094415:SSL routines:ssl3_read_bytes:sslv3 alert certificate expired:ssl/record/rec_layer_s3.c:1543:SSL alert number 45\r\n139899582240576:error:14094418:SSL routines:ssl3_read_bytes:tlsv1 alert unknown ca:ssl/record/rec_layer_s3.c:1543:SSL alert number 48\r\n139899582240576:error:14094415:SSL routines:ssl3_read_bytes:sslv3 alert certificate expired:ssl/record/rec_layer_s3.c:1543:SSL alert number 45\r\n $ openssl x509 -in localhost.crt -text\r\nCertificate:\r\n    Data:\r\n        Version: 3 (0x2)\r\n        Serial Number: 0 (0x0)\r\n        Signature Algorithm: sha256WithRSAEncryption\r\n        Issuer: CN = NDG Test CA, O = NDG, OU = Security\r\n        Validity\r\n            Not Before: Dec 16 01:07:32 2016 GMT\r\n            Not After : Dec 16 01:07:32 2019 GMT\r\n...\r\n```","author":{"url":"https://github.com/mgorny","@type":"Person","name":"mgorny"},"datePublished":"2020-02-21T13:19:44.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":4},"url":"https://github.com/20/ndg_httpsclient/issues/20"}