muzukasisa.txt

この難しさの違い...


nc duckduckgo.com 80
GET /html/?q=hello HTTP/1.1
Accept: text/html
Host: html.duckduckgo.com











openssl s_client -connect duckduckgo.com:443
GET /html/?q=hello HTTP/1.1
Accept: text/html
Host: html.duckduckgo.com












sed -e "s/;.*//" | xxd -r -p | openssl s_client -alpn h2 -connect duckduckgo.com:443 | xxd

50 52 49 20 2a 20 48 54 54 50 2f 32 2e 30 0d 0a 0d 0a 53 4d 0d 0a 0d 0a 0a    ;magic

00 00 00 ; frame Payload length
04 ; frame type = SETTINGS
00 ; settings flags
00 00 00 00 ; Reserved & Stream Identifier

00 00 04 ; frame Payload length
08 ; frame type = Window Update
00 ; flags unused
00 00 00 00 ; settings id
00 01 00 00 ; window size update

00 00 18    ;frame Payload length
01 ; frame type = HEADER
05 ; header flags = END_HEADERS | END_STREAM
12 34 56 78 ; Reserved&Stream Identifier
 ; Frame Payload
82 87 84 41 14
68 74 6d 6c 2e 64 75 63 6b 64 75 63 6b 67 6f 2e 63 6f 6d

00 00 04 ; frame Payload length
08 ; frame type = Window Update
00 ; flags unused
12 34 56 78 ; headers id
00 01 00 00 ; window size update