HTTP/1.1 503 Service Unavailable: Back-end server is at capacity
Content-Length: 0
Connection: keep-alive

AWS ELB2.0

HTTP/1.1 503 Service Temporarily Unavailable
Server: awselb/2.0
Date: Fri, 28 Mar 2025 04:22:33 GMT
Content-Type: text/html
Content-Length: 564
Connection: keep-alive

Certificate:
    Data:
        Version: 3 (0x2)
        Serial Number:
            0e:42:a5:bc:64:4c:16:60:6e:93:3a:47:68:a8:82:f7
        Signature Algorithm: sha256WithRSAEncryption
        Issuer: C=US, O=Amazon, CN=Amazon RSA 2048 M03
        Validity
            Not Before: Jul 10 00:00:00 2024 GMT
            Not After : Aug  6 23:59:59 2025 GMT
        Subject: CN=ls-alb-testing.com
        Subject Public Key Info:
            Public Key Algorithm: rsaEncryption
                Public-Key: (2048 bit)
                Modulus:
                    00:c7:e7:53:b6:52:2f:e6:83:0e:7e:0f:ec:e1:0c:
                    56:5d:0e:9f:29:9c:d9:25:4b:3d:84:c1:69:2e:a8:
                    d6:b6:6a:f1:c7:f0:ff:a2:d1:8e:0c:90:9d:06:6e:
                    59:df:da:77:2e:97:6b:73:7d:39:10:6f:7b:fa:6f:
                    17:5e:9f:b9:b4:f1:88:28:60:04:81:29:96:6a:c8:
                    5c:a3:5e:11:fb:95:3f:62:e4:82:a7:a6:7f:f6:99:
                    aa:ca:cd:a3:41:e1:24:fc:8b:f2:32:80:a9:de:05:
                    93:e5:9d:26:1c:44:e9:cb:e7:b8:07:6b:e3:25:95:
                    9a:1e:90:8b:8c:0e:d8:b1:2a:e3:65:8b:18:23:5b:
                    6d:cc:7d:54:7c:4d:79:b4:24:d5:e8:74:32:2a:bf:
                    03:ce:aa:5d:e9:7d:ed:5f:14:0e:13:04:1e:12:b0:
                    39:5e:84:9c:87:93:76:af:fa:f9:74:4a:10:2f:cd:
                    a3:d2:d2:4a:46:06:5a:5b:73:d7:37:1f:8c:f0:63:
                    f6:24:f2:69:46:1a:8e:98:02:c6:bc:29:54:51:0b:
                    df:ab:74:ac:c0:62:4c:9b:bd:c7:a2:37:17:60:94:
                    79:5b:f9:1e:f6:08:30:00:e4:3f:1c:76:c3:74:49:
                    a8:fa:40:fd:12:b5:6b:60:9d:e7:a8:fb:71:70:90:
                    e2:ad
                Exponent: 65537 (0x10001)
        X509v3 extensions:
            X509v3 Authority Key Identifier: 
                55:D9:18:5F:D2:1C:CC:01:E1:58:B4:BE:AB:D9:55:42:01:D7:2E:02
            X509v3 Subject Key Identifier: 
                A5:87:70:5C:04:27:BD:53:47:5B:B7:2F:37:74:A2:76:FB:E5:27:29
            X509v3 Subject Alternative Name: 
                DNS:ls-alb-testing.com
            X509v3 Certificate Policies: 
                Policy: 2.23.140.1.2.1
            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://crl.r2m03.amazontrust.com/r2m03.crl
            Authority Information Access: 
                OCSP - URI:http://ocsp.r2m03.amazontrust.com
                CA Issuers - URI:http://crt.r2m03.amazontrust.com/r2m03.cer
            X509v3 Basic Constraints: critical
                CA:FALSE
            CT Precertificate SCTs: 
                Signed Certificate Timestamp:
                    Version   : v1 (0x0)
                    Log ID    : 12:F1:4E:34:BD:53:72:4C:84:06:19:C3:8F:3F:7A:13:
                                F8:E7:B5:62:87:88:9C:6D:30:05:84:EB:E5:86:26:3A
                    Timestamp : Jul 10 07:51:00.064 2024 GMT
                    Extensions: none
                    Signature : ecdsa-with-SHA256
                                30:46:02:21:00:A6:F8:BC:83:A3:55:96:15:8A:73:9A:
                                6A:FF:1A:B7:12:7D:84:E5:7B:3D:C1:6C:9F:51:3D:CB:
                                AF:24:BB:AB:54:02:21:00:FE:6A:31:B7:56:1A:4B:7D:
                                87:C3:E3:4A:6E:AB:D3:C8:51:C1:F7:55:1A:5E:88:6E:
                                0F:1F:70:F5:0C:8B:31:6A
                Signed Certificate Timestamp:
                    Version   : v1 (0x0)
                    Log ID    : 7D:59:1E:12:E1:78:2A:7B:1C:61:67:7C:5E:FD:F8:D0:
                                87:5C:14:A0:4E:95:9E:B9:03:2F:D9:0E:8C:2E:79:B8
                    Timestamp : Jul 10 07:50:59.974 2024 GMT
                    Extensions: none
                    Signature : ecdsa-with-SHA256
                                30:44:02:20:53:14:30:5F:C5:BB:9C:05:06:A9:97:FB:
                                E9:6F:2A:9D:37:B0:19:49:10:E4:FF:F1:32:AD:25:90:
                                F9:92:80:73:02:20:74:2A:3B:FB:44:14:9B:8E:67:1D:
                                88:69:05:47:A8:92:7A:4D:38:6E:EC:BE:B9:0D:57:D3:
                                21:A0:B2:8A:41:8F
                Signed Certificate Timestamp:
                    Version   : v1 (0x0)
                    Log ID    : E6:D2:31:63:40:77:8C:C1:10:41:06:D7:71:B9:CE:C1:
                                D2:40:F6:96:84:86:FB:BA:87:32:1D:FD:1E:37:8E:50
                    Timestamp : Jul 10 07:50:59.989 2024 GMT
                    Extensions: none
                    Signature : ecdsa-with-SHA256
                                30:46:02:21:00:9B:48:41:96:D2:BA:64:E6:39:08:AC:
                                F2:02:3D:8A:CE:DE:EB:4A:0B:81:4B:4A:6B:AD:C8:25:
                                E3:05:7F:06:A1:02:21:00:DB:BA:85:E7:B8:25:92:2B:
                                E2:C9:90:9D:CB:92:19:E2:26:60:1C:D1:B7:B0:84:B8:
                                96:6B:86:D0:1F:3B:BA:36
    Signature Algorithm: sha256WithRSAEncryption
    Signature Value:
        0a:6a:1f:56:80:8e:29:b4:b4:81:3c:7a:15:c6:62:b2:04:22:
        fc:76:7d:83:d8:ae:41:7e:60:3a:e1:e9:27:28:e4:69:93:57:
        83:cb:20:7e:f3:6d:29:ba:34:35:78:d6:46:2c:75:e2:4e:14:
        02:22:5c:b5:13:ae:30:09:ec:61:96:2d:43:c7:fd:67:8a:13:
        50:70:87:61:7e:7c:cd:c5:49:ad:b5:9e:d5:b6:6a:0f:48:00:
        e0:12:8a:cf:7c:99:b2:de:56:36:10:c5:42:76:7e:8e:73:27:
        b2:94:99:81:af:02:b7:ac:38:c4:ea:6b:d0:54:44:4a:5f:e9:
        93:d9:14:fb:a5:16:60:0e:2c:00:5c:ea:d4:82:e2:a1:d3:f5:
        65:93:d4:76:59:05:43:4f:66:8b:6c:f8:1b:17:fb:41:c8:2a:
        40:d0:a5:4f:5f:da:c8:5e:a7:57:14:d3:3c:30:ca:84:3e:13:
        7a:d1:42:d2:b0:96:b4:d0:66:57:62:de:06:a7:60:81:a9:12:
        11:b3:3f:03:93:c0:31:2f:55:8e:3a:f3:e0:d4:c4:d3:59:9e:
        15:bc:53:21:65:5c:f0:9a:b7:cb:5d:7c:73:97:8c:35:69:d5:
        3c:3c:bf:54:4a:c9:2f:04:aa:14:52:e1:87:91:b4:8e:d6:a2:
        93:c2:a6:68