TLS/SSL cert for IPv4 Private Addresses

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Usage

Download cert.pem and privkey.pem, install to your private system.

For example:
https://192-168-0-1.ip4a.net/

Download

ip4a.net.cert-2025-03-01.tar.gz
SHA256 (./ip4a.net.cert-2025-03-01.tar.gz) = b29373ce95ff2e4bf2ca250de173317dd6085c5ebd9fb1d04d03776a4f7fdf9f

cert.pem

# openssl x509 -in ./cert.pem -text -noout
Certificate:
   Data:
       Version: 3 (0x2)
       Serial Number:
           03:74:c8:20:4f:90:d3:4a:d1:70:dd:82:21:c4:40:7e:58:f0
       Signature Algorithm: ecdsa-with-SHA384
       Issuer: C = US, O = Let's Encrypt, CN = E5
       Validity
           Not Before: Mar  1 00:07:46 2025 GMT
           Not After : May 30 00:07:45 2025 GMT
       Subject: CN = *.ip4a.net
       Subject Public Key Info:
           Public Key Algorithm: id-ecPublicKey
               Public-Key: (256 bit)
               pub:
                   04:20:3d:ca:ee:99:9a:1b:e0:b4:d1:55:31:03:5f:
                   b7:c9:af:48:da:3e:5f:1a:34:52:ac:23:04:0e:f5:
                   6c:06:c2:97:41:f1:2e:3a:41:e8:e1:db:b6:cd:99:
                   80:d6:1d:02:db:a8:9a:bf:a7:fa:0d:70:f7:ae:c3:
                   ab:2e:c0:ff:e7
               ASN1 OID: prime256v1
               NIST CURVE: P-256
       X509v3 extensions:
           X509v3 Key Usage: critical
               Digital Signature
           X509v3 Extended Key Usage: 
               TLS Web Server Authentication, TLS Web Client Authentication
           X509v3 Basic Constraints: critical
               CA:FALSE
           X509v3 Subject Key Identifier: 
               8A:92:F6:5D:CA:AF:ED:2D:A2:74:B5:09:D9:62:41:AD:83:59:6B:D6
           X509v3 Authority Key Identifier: 
               9F:2B:5F:CF:3C:21:4F:9D:04:B7:ED:2B:2C:C4:C6:70:8B:D2:D7:0D
           Authority Information Access: 
               OCSP - URI:http://e5.o.lencr.org
               CA Issuers - URI:http://e5.i.lencr.org/
           X509v3 Subject Alternative Name: 
               DNS:*.ip4a.net, DNS:ip4a.net
           X509v3 Certificate Policies: 
               Policy: 2.23.140.1.2.1
           CT Precertificate SCTs: 
               Signed Certificate Timestamp:
                   Version   : v1 (0x0)
                   Log ID    : CC:FB:0F:6A:85:71:09:65:FE:95:9B:53:CE:E9:B2:7C:
                               22:E9:85:5C:0D:97:8D:B6:A9:7E:54:C0:FE:4C:0D:B0
                   Timestamp : Mar  1 01:06:16.251 2025 GMT
                   Extensions: none
                   Signature : ecdsa-with-SHA256
                               30:45:02:20:55:AC:37:BA:FB:BF:A6:CF:36:85:25:33:
                               79:4F:C8:DD:09:DB:FA:85:70:4E:69:A7:5C:5F:E5:7C:
                               10:AF:3A:98:02:21:00:90:D1:9F:CF:F0:04:05:87:96:
                               42:E5:B1:96:2C:CA:3D:7D:0F:07:DC:83:FE:FC:4E:19:
                               42:CA:D3:5D:35:53:ED
               Signed Certificate Timestamp:
                   Version   : v1 (0x0)
                   Log ID    : 4E:75:A3:27:5C:9A:10:C3:38:5B:6C:D4:DF:3F:52:EB:
                               1D:F0:E0:8E:1B:8D:69:C0:B1:FA:64:B1:62:9A:39:DF
                   Timestamp : Mar  1 01:06:16.214 2025 GMT
                   Extensions: none
                   Signature : ecdsa-with-SHA256
                               30:45:02:21:00:F1:81:50:08:55:CB:3D:F4:C9:F6:11:
                               3B:B9:4B:5A:6D:9A:B4:8E:B7:E9:22:42:6B:B9:EA:D4:
                               1F:A9:44:F4:7A:02:20:39:37:3B:42:DA:94:D7:8B:5F:
                               9D:5C:51:0D:BA:7A:DB:CD:68:70:97:42:BC:A6:4F:4C:
                               3B:50:B1:90:C1:E2:C6
   Signature Algorithm: ecdsa-with-SHA384
   Signature Value:
       30:64:02:30:16:d8:69:69:2b:01:c7:7e:1d:95:24:95:e9:4f:
       cc:4e:a2:e0:c7:7a:8e:6b:2d:89:9f:ee:a0:91:26:3e:e4:e2:
       94:68:99:c0:09:cb:3d:09:c0:dc:14:49:61:0d:0f:cb:02:30:
       23:0e:66:33:dd:1e:d7:10:f1:a3:9d:7f:dc:6b:22:68:7a:5b:
       83:2a:68:f5:8e:99:a9:78:c7:b0:01:f6:f0:8e:a2:eb:77:5f:
       94:65:28:ad:fc:04:34:bc:7d:26:78:56

privkey.pem


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