Download cert.pem and privkey.pem, install to your private system.
For example:
https://192-168-0-1.ip4a.net/
ip4a.net.cert-2025-03-01.tar.gz
SHA256 (./ip4a.net.cert-2025-03-01.tar.gz) = b29373ce95ff2e4bf2ca250de173317dd6085c5ebd9fb1d04d03776a4f7fdf9f
# 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