[centos@ip-172-31-16-184 cert]$ openssl x509 -in cert1.pem -noout -text
Certificate:
    Data:
        Version: 3 (0x2)
        Serial Number:
            03:52:ef:6c:02:d9:4c:3e:57:ba:31:4c:67:fd:8e:e3:48:6c
    Signature Algorithm: sha256WithRSAEncryption
        Issuer: C=US, O=Let's Encrypt, CN=Let's Encrypt Authority X3
        Validity
            Not Before: May 22 21:01:35 2018 GMT
            Not After : Aug 20 21:01:35 2018 GMT
        Subject: CN=acm.fm-bo.com
        Subject Public Key Info:
            Public Key Algorithm: rsaEncryption
                Public-Key: (2048 bit)
                Modulus:
                    00:e4:45:f8:cc:c6:5c:36:5c:37:d8:6e:a1:51:2d:
                    b7:67:75:28:12:c8:a8:03:8c:0f:1a:5b:c6:a8:da:
                    6a:a0:d2:ab:61:ef:42:10:2b:a6:14:bf:9d:5a:c5:
                    a9:c5:c0:81:2a:66:f5:b2:9f:d9:8d:42:67:79:49:
                    a8:2f:06:41:23:84:bc:ba:8f:95:da:a4:69:c1:e0:
                    f3:0e:37:16:2b:e3:63:22:d8:aa:0f:47:78:a4:77:
                    39:4f:12:a9:bd:75:45:3a:e6:bf:05:3e:a9:07:a5:
                    6f:6e:f0:4a:5c:b7:e0:c2:7d:d2:88:be:47:78:37:
                    64:d2:e8:b2:37:49:bc:ac:e9:71:5c:55:b1:6c:cf:
                    31:d9:79:3e:d0:43:44:44:9d:a2:fb:21:86:a6:79:
                    ea:57:e9:d6:62:39:45:5b:75:42:67:a6:82:6e:86:
                    5c:f1:91:3b:2c:e5:db:b2:b1:77:99:85:6f:b0:eb:
                    19:69:19:5c:09:2d:6f:b7:48:57:fc:5b:20:17:76:
                    fc:78:2f:c5:c6:0d:92:8d:a0:0f:0a:89:87:66:44:
                    b7:22:ad:9e:e3:4c:e1:a2:8d:18:fd:dc:4d:37:79:
                    58:b5:c1:1e:b2:d4:08:c2:0e:20:14:9b:07:40:0b:
                    14:a3:bb:41:c3:59:ed:06:f8:87:54:82:5a:6c:4f:
                    f1:a9
                Exponent: 65537 (0x10001)
        X509v3 extensions:
            X509v3 Key Usage: critical
                Digital Signature, Key Encipherment
            X509v3 Extended Key Usage: 
                TLS Web Server Authentication, TLS Web Client Authentication
            X509v3 Basic Constraints: critical
                CA:FALSE
            X509v3 Subject Key Identifier: 
                72:6D:3E:28:67:B5:79:86:3C:C5:65:FB:F6:6C:28:1E:A5:69:C7:C1
            X509v3 Authority Key Identifier: 
                keyid:A8:4A:6A:63:04:7D:DD:BA:E6:D1:39:B7:A6:45:65:EF:F3:A8:EC:A1
 
            Authority Information Access: 
                OCSP - URI:http://ocsp.int-x3.letsencrypt.org
                CA Issuers - URI:http://cert.int-x3.letsencrypt.org/
 
            X509v3 Subject Alternative Name: 
                DNS:acm.fm-bo.com
            X509v3 Certificate Policies: 
                Policy: 2.23.140.1.2.1
                Policy: 1.3.6.1.4.1.44947.1.1.1
                  CPS: http://cps.letsencrypt.org
                  User Notice:
                    Explicit Text: This Certificate may only be relied upon by Relying Parties and only in accordance with the Certificate Policy found at https://letsencrypt.org/repository/
 
            CT Precertificate SCTs: 
                Signed Certificate Timestamp:
                    Version   : v1(0)
                    Log ID    : 29:3C:51:96:54:C8:39:65:BA:AA:50:FC:58:07:D4:B7:
                                6F:BF:58:7A:29:72:DC:A4:C3:0C:F4:E5:45:47:F4:78
                    Timestamp : May 22 22:01:35.753 2018 GMT
                    Extensions: none
                    Signature : ecdsa-with-SHA256
                                30:45:02:21:00:EF:81:BC:52:78:E4:E5:91:4E:FF:C0:
                                05:9B:56:2A:8C:49:E0:1A:7E:79:2C:DC:06:2B:9B:FB:
                                4E:88:8E:48:4C:02:20:2E:E9:CA:3B:6E:DC:88:51:EC:
                                FD:60:72:79:A5:48:37:5A:78:A6:5C:B8:29:5B:0E:10:
                                89:E1:2D:EC:C1:7E:55
                Signed Certificate Timestamp:
                    Version   : v1(0)
                    Log ID    : DB:74:AF:EE:CB:29:EC:B1:FE:CA:3E:71:6D:2C:E5:B9:
                                AA:BB:36:F7:84:71:83:C7:5D:9D:4F:37:B6:1F:BF:64
                    Timestamp : May 22 22:01:35.813 2018 GMT
                    Extensions: none
                    Signature : ecdsa-with-SHA256
                                30:46:02:21:00:DD:59:31:05:F0:57:89:DE:93:BA:83:
                                78:DB:AB:AD:F3:60:7B:DB:19:EC:01:C0:08:68:CA:EF:
                                F8:65:3B:DC:5F:02:21:00:97:2E:98:B9:2F:8C:62:8F:
                                FD:C2:EE:BB:5C:DA:DB:4F:C5:B0:2C:A8:C3:47:52:F3:
                                4A:14:A4:67:26:2E:A4:7C
    Signature Algorithm: sha256WithRSAEncryption
         47:0d:c0:ad:d5:4d:41:f1:4b:94:a7:fb:df:33:bf:9c:74:e5:
         34:b2:27:c6:8d:b3:c2:f9:12:c5:4c:85:e9:91:93:21:9d:af:
         94:ab:06:64:91:64:b3:35:83:5c:17:d4:b7:95:c5:2b:aa:ee:
         dc:c4:02:84:37:77:02:26:3b:ac:d4:bc:37:58:7f:84:92:8c:
         7f:2e:ed:a0:29:ec:59:63:b3:e0:5a:f9:a8:11:0b:f5:2c:67:
         cb:30:b9:86:c0:80:2d:58:d6:08:9e:41:32:7f:67:59:b5:e9:
         6e:91:d9:5b:e5:90:33:78:5e:2e:c4:b4:51:8d:61:04:e5:42:
         75:26:7b:98:8c:9a:2e:c1:a8:3e:2a:2f:76:d6:2a:e6:00:72:
         a7:75:d6:61:6b:29:88:45:28:47:b7:b6:87:cf:13:ad:9b:8f:
         db:a4:47:d3:a0:5f:6d:ec:8b:0c:02:bf:be:2e:6a:1b:22:17:
         29:03:54:24:f5:ff:d2:b1:d9:70:04:9c:29:93:1f:f2:a4:46:
         76:45:ef:2a:14:f5:6e:8f:f8:a6:41:a3:20:d6:6c:d6:d3:7c:
         f6:4b:84:01:5b:f9:9c:8b:67:63:0c:9d:01:a7:da:63:2b:0f:
         1e:42:44:d2:dc:85:fc:c7:bd:37:3b:26:5c:0d:96:7a:4c:ae:
         d0:19:63:26