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  • 命令行访问https(转载,略有改动)

    由于现在很多的互联网页面开始使用https,造成telnet 的http方式无法访问(文档地址:用Telnet发送HTTP请求),特补充下文:

    1、安装openssl。如链接失效,请自行找其它资源。

    2、将openssl 的bin目录(D:Program FilesOpenSSL-Win64in)加入系统环境变量Path中。

    3、使用命令访问

    openssl s_client -connect www.baidu.com:443
    

      返回证书信息类似下文:

    CONNECTED(000001A0)
    depth=1 C = BE, O = GlobalSign nv-sa, CN = GlobalSign Organization Validation CA - SHA256 - G2
    verify error:num=20:unable to get local issuer certificate
    verify return:1
    depth=0 C = CN, ST = beijing, L = beijing, OU = service operation department, O = "Beijing Baidu Netcom Science Technology Co., Ltd", CN = baidu.com
    verify return:1
    ---
    Certificate chain
    0 s:C = CN, ST = beijing, L = beijing, OU = service operation department, O = "Beijing Baidu Netcom Science Technology Co., Ltd", CN = baidu.com
    i:C = BE, O = GlobalSign nv-sa, CN = GlobalSign Organization Validation CA - SHA256 - G2
    1 s:C = BE, O = GlobalSign nv-sa, CN = GlobalSign Organization Validation CA - SHA256 - G2
    i:C = BE, O = GlobalSign nv-sa, OU = Root CA, CN = GlobalSign Root CA
    ---
    Server certificate.....

    GET / HTTP/1.1
    HOST: www.baidu.com /*这句话可不要*/

    再连续按两次回车键,该命令表示向baidu索要首页根文件,使用的协议是HTTP的1.1版本。

    返回网页代码如下:

    HTTP/1.1 200 OK
    Accept-Ranges: bytes
    Cache-Control: no-cache
    Connection: Keep-Alive
    Content-Length: 14722
    Content-Type: text/html
    Date: Thu, 17 Oct 2019 08:52:58 GMT
    P3p: CP=" OTI DSP COR IVA OUR IND COM "
    P3p: CP=" OTI DSP COR IVA OUR IND COM "
    Pragma: no-cache
    Server: BWS/1.1
    Set-Cookie: BAIDUID=DCFC93ADF1F24B901BE236D73D94F686:FG=1; expires=Thu, 31-Dec-37 23:55:55 GMT; max-age=2147483647; path=/; domain=.baidu.com
    Set-Cookie: BIDUPSID=DCFC93ADF1F24B901BE236D73D94F686; expires=Thu, 31-Dec-37 23:55:55 GMT; max-age=2147483647; path=/; domain=.b...

    其它内容可以参考 用Telnet发送HTTP请求

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  • 原文地址:https://www.cnblogs.com/moonson/p/11693145.html
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