PPTP

PPTP:
  Firmware: 1
  Hostname: local
  Vendor: linux

HTTP/1.1 401 Unauthorized
Date: Thu, 11 Apr 2024 23:44:38 GMT
Server: WebServer/2.0
X-Frame-Options: SAMEORIGIN
Cache-Control: no-cache
ETag: "0-2b8-b90"
Content-Length: 195
Content-Type: text/html
Connection: keep-alive
Keep-Alive: timeout=15, max=99
WWW-Authenticate: Digest realm="DCS-2670L", qop="auth", nonce="df022e79e61fb9a561392f8ca2c751fa", opaque="0-2b8-b90", algorithm="MD5", stale="FALSE"