Varnish HTTP Cache

HTTP/1.1 502 Bad Gateway
Server: Varnish
Content-Type: text/html; charset=utf-8
Retry-After: 60
Allow: GET, HEAD
Content-Length: 13388
Accept-Ranges: bytes
Date: Fri, 05 Apr 2024 16:23:53 GMT
Age: 0
Via: 1.1 varnish
Connection: close
X-Frame-Options: SAMEORIGIN
X-Content-Type-Options: nosniff
X-XSS-Protection: 1; mode=block

nginx

HTTP/1.1 502 Bad Gateway
Server: nginx
Date: Tue, 09 Apr 2024 04:06:08 GMT
Content-Type: text/html; charset=utf-8
Content-Length: 13388
Connection: keep-alive
Retry-After: 60
Allow: GET, HEAD
Accept-Ranges: bytes
Age: 0
Via: 1.1 varnish
X-Frame-Options: SAMEORIGIN
X-Content-Type-Options: nosniff
X-XSS-Protection: 1; mode=block

Certificate:
    Data:
        Version: 3 (0x2)
        Serial Number:
            08:dc:a8:3a:fb:f5:56:a9:f1:9e:b4:15:20:90:13:cb
        Signature Algorithm: sha256WithRSAEncryption
        Issuer: C=US, O=DigiCert Inc, OU=www.digicert.com, CN=RapidSSL TLS RSA CA G1
        Validity
            Not Before: Jul 17 00:00:00 2023 GMT
            Not After : Jul 20 23:59:59 2024 GMT
        Subject: CN=*.radioradicale.it
        Subject Public Key Info:
            Public Key Algorithm: rsaEncryption
                Public-Key: (2048 bit)
                Modulus:
                    00:b9:0e:ba:94:17:00:1f:03:44:94:42:08:a5:37:
                    0b:ee:88:b2:fe:7c:89:40:35:b4:c2:4f:ca:17:64:
                    3b:a8:33:46:0b:c2:11:13:49:b5:1b:e1:11:78:3f:
                    bd:83:cc:91:f5:14:86:e3:65:1b:43:1e:41:fc:38:
                    fd:76:70:ec:2e:34:4f:9f:90:62:aa:94:14:7d:c0:
                    ec:ea:f3:65:3b:7c:2e:12:b4:e0:4e:38:46:96:75:
                    ca:6c:b7:5a:47:f3:e3:a8:e5:ea:23:76:1e:e5:8b:
                    82:55:03:bc:2c:9f:af:47:61:ca:39:86:b1:44:5a:
                    48:98:33:9b:fd:a1:29:b8:c7:92:a9:7e:03:e3:6a:
                    14:10:81:35:06:6f:98:42:99:b1:33:8e:7b:f0:08:
                    ca:18:85:f9:01:47:65:5b:ce:e2:1b:2d:6a:25:c2:
                    9b:d6:1e:49:06:af:85:34:81:0d:f9:8d:56:ad:7e:
                    85:50:ad:13:44:6a:fe:7a:45:9f:12:d2:37:cc:48:
                    d0:13:bd:48:d8:20:a6:26:23:cb:2c:66:43:ca:26:
                    2a:53:2d:bf:e7:8f:63:6e:68:f3:2d:32:a6:0a:eb:
                    f0:d0:92:ac:27:ff:e4:a3:6a:9d:30:f2:72:28:e3:
                    04:d5:70:f4:87:08:fa:14:74:ea:fa:db:43:aa:56:
                    67:35
                Exponent: 65537 (0x10001)
        X509v3 extensions:
            X509v3 Authority Key Identifier: 
                0C:DB:6C:82:49:0F:4A:67:0A:B8:14:EE:7A:C4:48:52:88:EB:56:38
            X509v3 Subject Key Identifier: 
                AD:5A:C1:40:6A:07:E8:64:A7:35:51:42:FC:4E:ED:AD:BA:CA:0F:90
            X509v3 Subject Alternative Name: 
                DNS:*.radioradicale.it, DNS:radioradicale.it
            X509v3 Key Usage: critical
                Digital Signature, Key Encipherment
            X509v3 Extended Key Usage: 
                TLS Web Server Authentication, TLS Web Client Authentication
            X509v3 CRL Distribution Points: 
                Full Name:
                  URI:http://cdp.rapidssl.com/RapidSSLTLSRSACAG1.crl
            X509v3 Certificate Policies: 
                Policy: 2.23.140.1.2.1
                  CPS: http://www.digicert.com/CPS
            Authority Information Access: 
                OCSP - URI:http://status.rapidssl.com
                CA Issuers - URI:http://cacerts.rapidssl.com/RapidSSLTLSRSACAG1.crt
            X509v3 Basic Constraints: 
                CA:FALSE
            CT Precertificate SCTs: 
                Signed Certificate Timestamp:
                    Version   : v1 (0x0)
                    Log ID    : EE:CD:D0:64:D5:DB:1A:CE:C5:5C:B7:9D:B4:CD:13:A2:
                                32:87:46:7C:BC:EC:DE:C3:51:48:59:46:71:1F:B5:9B
                    Timestamp : Jul 17 00:21:32.414 2023 GMT
                    Extensions: none
                    Signature : ecdsa-with-SHA256
                                30:45:02:21:00:85:DA:5C:BF:B1:D2:63:10:DF:FA:95:
                                4A:7E:39:0C:F0:6C:64:AB:A8:5E:3A:D5:03:D2:1D:D5:
                                C4:F1:FB:8A:F6:02:20:27:53:F2:F3:19:50:33:90:9F:
                                23:AB:CB:C3:BD:91:DA:36:B2:91:96:98:7A:1E:03:82:
                                8D:26:4F:76:B5:67:F7
                Signed Certificate Timestamp:
                    Version   : v1 (0x0)
                    Log ID    : 48:B0:E3:6B:DA:A6:47:34:0F:E5:6A:02:FA:9D:30:EB:
                                1C:52:01:CB:56:DD:2C:81:D9:BB:BF:AB:39:D8:84:73
                    Timestamp : Jul 17 00:21:32.472 2023 GMT
                    Extensions: none
                    Signature : ecdsa-with-SHA256
                                30:45:02:20:1F:A8:88:6E:7B:89:56:17:83:12:23:CC:
                                D3:25:38:65:C6:28:D9:52:58:29:D1:A0:1C:97:5B:C7:
                                90:E8:C6:73:02:21:00:D2:36:09:C9:EC:F3:17:5E:D9:
                                E0:EB:7B:82:42:8A:BD:83:D4:2B:B2:7F:91:91:94:81:
                                31:94:3A:42:07:77:46
                Signed Certificate Timestamp:
                    Version   : v1 (0x0)
                    Log ID    : DA:B6:BF:6B:3F:B5:B6:22:9F:9B:C2:BB:5C:6B:E8:70:
                                91:71:6C:BB:51:84:85:34:BD:A4:3D:30:48:D7:FB:AB
                    Timestamp : Jul 17 00:21:32.418 2023 GMT
                    Extensions: none
                    Signature : ecdsa-with-SHA256
                                30:46:02:21:00:B1:33:F3:1D:2D:A7:93:22:34:98:FB:
                                4F:A1:47:54:E4:D5:90:5A:D5:10:C7:18:E1:F7:C9:98:
                                2A:E5:92:22:72:02:21:00:E1:3C:0D:F8:DC:E9:8F:46:
                                F4:77:C5:A2:7B:3F:A2:F4:FA:2E:D8:BC:7A:BD:6F:C6:
                                6A:42:F7:AD:1F:DE:10:E7
    Signature Algorithm: sha256WithRSAEncryption
    Signature Value:
        11:99:2b:48:9f:97:21:4a:5d:31:f3:1f:00:bd:99:20:2b:ea:
        e8:a7:ac:50:90:7b:85:29:ca:ef:1a:3c:04:ee:71:03:4a:ff:
        47:97:33:5a:3f:a5:82:ec:01:17:7e:e5:26:8d:87:5d:a3:19:
        6b:ee:f7:d5:f4:bc:52:4f:61:8c:b9:e9:c0:c0:16:ad:8a:56:
        69:c7:65:22:6b:4a:1f:7e:ac:64:1a:df:43:60:19:8b:c2:5d:
        7b:62:b4:3e:0a:b5:2f:c4:e6:73:48:d4:70:51:05:9a:6b:2a:
        43:64:30:fe:0b:14:f9:2e:ee:ca:4a:0e:57:aa:eb:01:ed:d7:
        3b:8b:a8:2d:fd:ca:12:17:28:2f:17:9c:05:8a:e5:14:db:d8:
        d4:13:0f:c6:6c:60:7a:0f:c2:de:27:5e:25:5d:d0:77:58:12:
        8d:a1:5e:94:86:d0:36:59:c3:5a:b3:b3:0d:86:be:d4:0c:f5:
        41:d8:3f:4f:cf:ee:75:7a:3b:53:81:04:77:4e:fe:f1:23:bc:
        ee:f2:00:c3:dc:82:a6:80:09:cb:8f:1d:32:18:64:60:56:7a:
        2d:89:9d:40:33:54:e8:2d:06:49:50:93:98:dc:7d:01:2d:a5:
        96:8e:58:ea:ee:08:01:f6:3c:7a:63:8f:09:4b:b0:8a:9b:49:
        89:22:40:25