nginx

HTTP/1.1 200 OK
Server: nginx
Date: Mon, 03 Feb 2025 23:18:30 GMT
Content-Type: text/html
Content-Length: 1741
Connection: keep-alive
Keep-Alive: timeout=20
Vary: Accept-Encoding
Last-Modified: Fri, 13 May 2022 18:55:17 GMT
ETag: "627ea995-6cd"
Accept-Ranges: bytes

VPN (IKE)

Initiator SPI: 766a673479677462
Responder SPI: 3563736578797576
Next Payload: Notification (N)
Version: 1.0
Exchange Type: Informational
Flags:
    Encryption:     False
    Commit:         False
    Authentication: False
Message ID: 00000000
Length: 40

nginx

HTTP/1.1 400 Bad Request
Server: nginx
Date: Sat, 01 Feb 2025 06:27:22 GMT
Content-Type: text/html
Content-Length: 650
Connection: close