文章摘要
这篇文章记录了使用curl命令连接到`shanyue.tech`的详细过程。文章显示curl成功建立了SSL连接，使用了TLSv1.3协议进行加密 handshake，并最终升级到HTTP/2协议。服务器返回了200状态码，包含内容长度、Accept-Encoding等信息。文章详细描述了连接建立过程中的SSL证书验证、服务器支持的协议以及响应头信息。
$ curl -vvv –head https://shanyue.tech
* Rebuilt URL to: https://shanyue.tech/
* Trying 218.91.183.88…
* TCP_NODELAY set
* Connected to shanyue.tech (218.91.183.88) port 443 (#0)
* ALPN, offering h3
* ALPN, offering http/1.1
* successfully set certificate verify locations:
* CAfile: /etc/pki/tls/certs/ca-bundle.crt
CApath: none
* TLSv1.3 (OUT), TLS handshake, Client hello (1):
* TLSv1.3 (IN), TLS handshake, Server hello (2):
* TLSv1.3 (IN), TLS handshake, [no content] (0):
* TLSv1.3 (IN), TLS handshake, Encrypted Extensions (8):
* TLSv1.3 (IN), TLS handshake, [no content] (0):
* TLSv1.3 (IN), TLS handshake, Certificate (11):
* TLSv1.3 (IN), TLS handshake, [no content] (0):
* TLSv1.3 (IN), TLS handshake, CERT verify (15):
* TLSv1.3 (IN), TLS handshake, [no content] (0):
* TLSv1.3 (IN), TLS handshake, Finished (20):
* TLSv1.3 (OUT), TLS change cipher, Change cipher spec (1):
* TLSv1.3 (OUT), TLS handshake, [no content] (0):
* TLSv1.3 (OUT), TLS handshake, Finished (20):
* SSL connection using TLSv1.3 / TLS_AES_256_GCM_SHA384
* ALPN, server accepted to use h3
* Server certificate:
* subject: CN=shanyue.tech
* start date: Feb 5 00:00:00 2022 GMT
* expire date: Feb 6 23:59:59 2023 GMT
* subjectAltName: host “shanyue.tech” matched cert’s “shanyue.tech”
* issuer: C=US; O=DigiCert Inc; OU=www.digicert.com; CN=Encryption Everywhere DV TLS CA – G1
* SSL certificate verify ok.
* Using HTTP2, server supports multi-use
* Connection state changed (HTTP/2 confirmed)
* Copying HTTP/2 data in stream buffer to connection buffer after upgrade: len=0
* TLSv1.3 (OUT), TLS app data, [no content] (0):
* TLSv1.3 (OUT), TLS app data, [no content] (0):
* TLSv1.3 (OUT), TLS app data, [no content] (0):
* Using Stream ID: 1 (easy handle 0x55c5a8e24690)
* TLSv1.3 (OUT), TLS app data, [no content] (0):
> HEAD / HTTP/2
> Host: shanyue.tech
> User-Agent: curl/7.61.1
> Accept: */*
>
* TLSv1.3 (IN), TLS handshake, [no content] (0):
* TLSv1.3 (IN), TLS handshake, Newsession Ticket (4):
* TLSv1.3 (IN), TLS handshake, [no content] (0):
* TLSv1.3 (IN), TLS handshake, Newsession Ticket (4):
* TLSv1.3 (IN), TLS app data, [no content] (0):
* Connection state changed (MAX_CONCURRENT_STREAMS==128)!
* TLSv1.3 (OUT), TLS app data, [no content] (0):
* TLSv1.3 (IN), TLS app data, [no content] (0):
< HTTP/2 200
HTTP/2 200
< server: Tengine
server: Tengine
< content-type: text/html; charset=utf-8
content-type: text/html; charset=utf-8
< content-length: 33229
content-length: 33229
< vary: Accept-Encoding
vary: Accept-Encoding
< date: Tue, 21 Jun 2022 06:02:59 GMT
date: Tue, 21 Jun 2022 06:02:59 GMT
< vary: Accept-Encoding
vary: Accept-Encoding
< x-oss-request-id: 62B15F13F15BB231391FB3A8
x-oss-request-id: 62B15F13F15BB231391FB3A8
< x-oss-cdn-auth: success
x-oss-cdn-auth: success
< accept-ranges: bytes
accept-ranges: bytes
< etag: “F540C0D57CDB57215AF11970EF4AAEF6”
etag: “F540C0D57CDB57215AF11970EF4AAEF6”
< last-modified: Wed, 23 Mar 2022 14:57:44 GMT
last-modified: Wed, 23 Mar 2022 14:57:44 GMT
< x-oss-object-type: Normal
x-oss-object-type: Normal
< x-oss-hash-crc64ecma: 8545542358272103335
x-oss-hash-crc64ecma: 8545542358272103335
< x-oss-storage-class: Standard
x-oss-storage-class: Standard
< x-oss-meta-mtime: 1648047444.796073379
x-oss-meta-mtime: 1648047444.796073379
< cache-control: no-cache
cache-control: no-cache
< content-md5: 9UDA1XzbVyFa8Rlw70qu9g==content-md5: 9UDA1XzbVyFa8Rlw70qu9g==< x-oss-server-time: 3
x-oss-server-time: 3
< ali-swift-global-savetime: 1655791379
ali-swift-global-savetime: 1655791379
< via: cache24.l2et15-1[66,66,200-0,M], cache44.l2et15-1[67,0], cache27.cn4056[128,128,200-0,M], cache64.cn4056[130,0]
via: cache24.l2et15-1[66,66,200-0,M], cache44.l2et15-1[67,0], cache27.cn4056[128,128,200-0,M], cache64.cn4056[130,0]
< x-cache: MISS TCP_MISS dirn:-2:-2
x-cache: MISS TCP_MISS dirn:-2:-2
< x-swift-savetime: Tue, 21 Jun 2022 06:02:59 GMT
x-swift-savetime: Tue, 21 Jun 2022 06:02:59 GMT
< x-swift-cachetime: 0
x-swift-cachetime: 0
< timing-allow-origin: *
timing-allow-origin: *
< eagleid: 088432cc16557913793393217e
eagleid: 088432cc16557913793393217e
<
* Connection #0 to host shanyue.tech left intact