<\/p>\n
[ec2-user@aws ~]$ openssl s_client -connect www.jibsheet.net:443 2>\/dev\/null | openssl x509 -noout -dates\r\nnotBefore=May 7 14:16:05 2021 GMT\r\nnotAfter=Aug 5 14:16:05 2021 GMT\r\n<\/pre>\nCert was generated on May 7th and expires August 5th.<\/p>\n
<\/p>\n
Cert download after generation<\/h3>\n
Lines 10 and 11 have the expiration data<\/p>\n
[ec2-user@aws]$ openssl x509 -text -noout -in jibsheet.cert\r\nCertificate:\r\n Data:\r\n Version: 3 (0x2)\r\n Serial Number:\r\n 04:20:f7:7b:f4:01:d1:1b:2b:36:59:06:68:ad:11:df:af:2b\r\n Signature Algorithm: sha256WithRSAEncryption\r\n Issuer: C=US, O=Let's Encrypt, CN=R3\r\n Validity\r\n Not Before: May 7 14:16:05 2021 GMT\r\n Not After : Aug 5 14:16:05 2021 GMT\r\n Subject: CN=www.jibsheet.net\r\n Subject Public Key Info:\r\n Public Key Algorithm: rsaEncryption\r\n Public-Key: (2048 bit)\r\n Modulus:\r\n 00:9c:19:f9:c3:59:32:9d:ac:22:81:34:92:41:66:\r\n 47:74:18:b0:93:32:be:de:ae:14:36:df:ee:df:98:\r\n 23:a6:2e:a9:86:32:18:41:c4:a3:a6:d9:6a:26:7a:\r\n ee:fd:84:41:d5:eb:03:4d:10:16:3b:45:1b:4c:e6:\r\n 11:43:27:1b:91:50:d1:4c:83:b5:66:41:cf:ac:df:\r\n b0:58:2f:15:ae:bc:89:d2:ad:1a:32:69:1b:14:4e:\r\n ba:f8:d8:dd:5d:a6:c9:37:4c:0b:5a:b6:83:d6:88:\r\n 0c:bb:f9:7b:02:0e:19:cd:c9:d8:70:f9:9e:32:93:\r\n fa:d5:ae:66:76:91:0c:b6:58:7e:6b:49:32:51:93:\r\n ee:22:10:9e:7e:9f:0c:50:bb:e8:08:0e:a9:cf:55:\r\n 71:31:9b:2e:9e:80:f7:5d:ef:66:e2:5a:b4:1f:db:\r\n a6:52:43:bf:a3:85:0a:45:17:85:f5:8b:b6:11:d2:\r\n 92:42:0f:bd:df:f7:35:a2:b8:60:5c:60:ba:e0:4f:\r\n 4e:3b:58:0e:7c:61:22:b5:97:13:dc:8a:aa:57:f5:\r\n 22:94:82:2e:bc:98:3c:f4:93:80:3b:c6:0b:a7:24:\r\n 14:3c:7a:67:08:71:0b:06:a4:2f:68:7e:45:e9:78:\r\n 7a:73:52:f0:84:69:d7:3c:57:01:df:11:66:5a:46:\r\n ec:bd\r\n Exponent: 65537 (0x10001)\r\n X509v3 extensions:\r\n X509v3 Key Usage: critical\r\n Digital Signature, Key Encipherment\r\n X509v3 Extended Key Usage:\r\n TLS Web Server Authentication, TLS Web Client Authentication\r\n X509v3 Basic Constraints: critical\r\n CA:FALSE\r\n X509v3 Subject Key Identifier:\r\n D1:55:E2:08:EE:C2:3D:23:79:CB:9B:80:45:29:8D:7B:4C:0F:20:F6\r\n X509v3 Authority Key Identifier:\r\n keyid:14:2E:B3:17:B7:58:56:CB:AE:50:09:40:E6:1F:AF:9D:8B:14:C2:C6\r\n\r\n Authority Information Access:\r\n OCSP - URI:http:\/\/r3.o.lencr.org\r\n CA Issuers - URI:http:\/\/r3.i.lencr.org\/\r\n\r\n X509v3 Subject Alternative Name:\r\n DNS:www.jibsheet.net\r\n X509v3 Certificate Policies:\r\n Policy: 2.23.140.1.2.1\r\n Policy: 1.3.6.1.4.1.44947.1.1.1\r\n CPS: http:\/\/cps.letsencrypt.org\r\n\r\n CT Precertificate SCTs:\r\n Signed Certificate Timestamp:\r\n Version : v1(0)\r\n Log ID : 5C:DC:43:92:FE:E6:AB:45:44:B1:5E:9A:D4:56:E6:10:\r\n 37:FB:D5:FA:47:DC:A1:73:94:B2:5E:E6:F6:C7:0E:CA\r\n Timestamp : May 7 15:16:06.190 2021 GMT\r\n Extensions: none\r\n Signature : ecdsa-with-SHA256\r\n 30:46:02:21:00:DF:74:21:00:02:F7:7F:5D:12:5E:06:\r\n 62:14:76:ED:5F:55:5D:53:7A:32:CC:A0:A7:E4:9D:13:\r\n 4C:CB:6B:A0:F1:02:21:00:CD:EA:07:42:9B:67:0D:D7:\r\n 4D:D5:8E:21:C0:89:9C:78:AB:40:04:A4:46:9E:F6:4A:\r\n 36:5C:5A:EE:DB:FB:91:50\r\n Signed Certificate Timestamp:\r\n Version : v1(0)\r\n Log ID : F6:5C:94:2F:D1:77:30:22:14:54:18:08:30:94:56:8E:\r\n E3:4D:13:19:33:BF:DF:0C:2F:20:0B:CC:4E:F1:64:E3\r\n Timestamp : May 7 15:16:06.034 2021 GMT\r\n Extensions: none\r\n Signature : ecdsa-with-SHA256\r\n 30:45:02:21:00:AE:6F:A4:7A:A8:E1:59:FF:E0:3A:51:\r\n 9A:9C:D1:37:0D:97:34:30:DB:81:DF:09:C1:FF:72:55:\r\n F4:F6:75:14:32:02:20:0E:63:D6:BF:4C:27:02:0B:29:\r\n E7:D8:79:82:22:35:55:D1:9C:FA:95:22:70:96:F3:6E:\r\n EE:7A:64:15:02:C1:6C\r\n Signature Algorithm: sha256WithRSAEncryption\r\n 62:4d:d7:44:ee:9b:3f:a7:ec:99:d6:2d:0d:42:bb:10:b1:02:\r\n 2c:7b:f4:e3:f0:be:b0:a6:ec:f5:d6:7a:58:21:f9:ff:1a:52:\r\n 4d:c8:ca:2b:95:2c:34:07:e6:1b:bb:8e:45:8e:ef:54:32:b2:\r\n f3:ca:7f:93:32:15:03:86:e3:df:42:69:f9:36:ed:c7:77:21:\r\n 95:ba:8a:9b:21:a0:84:ec:ee:1c:72:80:07:b5:e9:d1:17:b6:\r\n fe:df:37:b5:d4:32:4a:e2:4e:57:20:3d:d5:7a:91:c4:69:33:\r\n 89:19:6d:3d:1e:3c:67:c5:26:be:c3:41:9f:75:0b:43:00:6b:\r\n 07:53:43:ec:e8:52:2b:4e:bb:fe:58:83:76:a2:8d:40:1b:c4:\r\n 23:54:21:c9:50:cd:f8:c5:8e:6f:0c:80:52:cb:ae:bb:17:7c:\r\n 93:66:54:1e:80:49:06:cf:2b:c0:c7:d6:39:6a:db:06:bd:85:\r\n 9d:10:82:0c:4d:84:c5:c0:71:33:a8:39:e1:53:05:de:ec:bb:\r\n ef:e6:ae:80:a2:bb:e1:81:64:fd:2a:bc:b5:e0:97:cb:40:3e:\r\n 0d:1f:ee:dc:56:2b:c0:0d:41:ec:c1:0a:9e:99:88:48:65:98:\r\n 7c:ca:3a:cb:d0:49:dc:25:b7:5b:8e:de:3e:e6:f5:87:cd:2d:\r\n 0b:81:95:4d\r\n<\/pre>\n<\/p>\n
<\/p>\n
\\<\/p>\n","protected":false},"excerpt":{"rendered":"
Installed on a webserver [ec2-user@aws ~]$ openssl s_client -connect www.jibsheet.net:443 2>\/dev\/null | openssl x509 -noout -dates notBefore=May 7 14:16:05 2021 GMT notAfter=Aug 5 14:16:05 2021 GMT Cert was generated on May 7th and expires August 5th. Cert download after generation Lines 10 and 11 have the expiration data [ec2-user@aws]$ openssl x509 -text -noout -in jibsheet.cert Certificate: Data: Version: […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[5],"tags":[16],"yoast_head":"\n
How to check expiration dates for SSL certs - Jon Allen's Linux Stuff<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.jibsheet.net\/linux\/index.php\/2021\/05\/08\/how-to-check-expiration-dates-for-ssl-certs\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"How to check expiration dates for SSL certs - Jon Allen's Linux Stuff\" \/>\n<meta property=\"og:description\" content=\"Installed on a webserver [ec2-user@aws ~]$ openssl s_client -connect www.jibsheet.net:443 2>\/dev\/null | openssl x509 -noout -dates notBefore=May 7 14:16:05 2021 GMT notAfter=Aug 5 14:16:05 2021 GMT Cert was generated on May 7th and expires August 5th. Cert download after generation Lines 10 and 11 have the expiration data [ec2-user@aws]$ openssl x509 -text -noout -in jibsheet.cert Certificate: Data: Version: […]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.jibsheet.net\/linux\/index.php\/2021\/05\/08\/how-to-check-expiration-dates-for-ssl-certs\/\" \/>\n<meta property=\"og:site_name\" content=\"Jon Allen's Linux Stuff\" \/>\n<meta property=\"article:published_time\" content=\"2021-05-08T12:31:21+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2021-05-08T12:34:21+00:00\" \/>\n<meta name=\"author\" content=\"jonallen\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"jonallen\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/www.jibsheet.net\/linux\/index.php\/2021\/05\/08\/how-to-check-expiration-dates-for-ssl-certs\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.jibsheet.net\/linux\/index.php\/2021\/05\/08\/how-to-check-expiration-dates-for-ssl-certs\/\"},\"author\":{\"name\":\"jonallen\",\"@id\":\"https:\/\/www.jibsheet.net\/linux\/#\/schema\/person\/295a80d0b2aa929b648c4fdddee83993\"},\"headline\":\"How to check expiration dates for SSL certs\",\"datePublished\":\"2021-05-08T12:31:21+00:00\",\"dateModified\":\"2021-05-08T12:34:21+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/www.jibsheet.net\/linux\/index.php\/2021\/05\/08\/how-to-check-expiration-dates-for-ssl-certs\/\"},\"wordCount\":36,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\/\/www.jibsheet.net\/linux\/#\/schema\/person\/295a80d0b2aa929b648c4fdddee83993\"},\"keywords\":[\"Linux\"],\"articleSection\":[\"Linux\"],\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\/\/www.jibsheet.net\/linux\/index.php\/2021\/05\/08\/how-to-check-expiration-dates-for-ssl-certs\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.jibsheet.net\/linux\/index.php\/2021\/05\/08\/how-to-check-expiration-dates-for-ssl-certs\/\",\"url\":\"https:\/\/www.jibsheet.net\/linux\/index.php\/2021\/05\/08\/how-to-check-expiration-dates-for-ssl-certs\/\",\"name\":\"How to check expiration dates for SSL certs - 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