[网络协议]【随笔记】生成私有的CA认证证书，记录SSL证书完整签发过程

水滴石穿，点滴记忆

生成crt秘钥

• 第一步创建配置文件

[ req ]
default_bits       = 4096
distinguished_name = req_distinguished_name
req_extensions     = req_ext

[ req_distinguished_name ]
countryName                 = Country Name (2 letter code)
countryName_default         = cn
stateOrProvinceName         = State or Province Name (full name)
stateOrProvinceName_default = sc
localityName                = Locality Name (eg, city)
localityName_default        = cd
organizationName            = Organization Name (eg, company)
organizationName_default    = my
organizationalUnitName            = Organizational Unit Name (eg, section)
organizationalUnitName_default    = as
commonName                  = Common Name (e.g. server FQDN or YOUR name)
commonName_max              = 64
commonName_default          = hy.com

[ req_ext ]
subjectAltName = @alt_names


[alt_names]
IP.1    = 127.0.0.1
DNS.1   = *
DNS.2   = 127.0.0.1

这里的作用有两个，一个是里面的生成信息每次都是一致的，另一个就是签发的IP可以随意修改。

需要注意的是，IP与DNS要成对配置。

• 第二步生成私钥key

openssl genrsa -out server.key 2048

• 第三步生成csr文件

这里生成csr可以使用上面创建的配置文件，也可以不使用，到最后生成crt文件的时候在使用config

使用config

openssl req -new -nodes -out server.csr -key server.key -config  config.conf

不使用config

openssl req -new -nodes -out server.csr -key server.key

• 第四步生成最终的crt证书

这里是创建了一个bat脚本，后面每次签发不同的IP，可以修改config.conf文件。在直接运行bat就可以了

@echo off


set /p ok=是否继续[Y/N]:

if "%ok%"=="y" (
	set ok=Y
)

if "%ok%"=="Y" (
	cd %~dp0
	C:/OpenSSL-Win64/bin/openssl x509 -req -days 3650 -in server.csr -signkey server.key -out server.crt -extfile config.conf -extensions req_ext
	@echo off
	pause
)

配置NGINX

在nginx的conf目录下创建一个文件夹，取名httpsCofig，这个里面用来放上面生成的两个文件：

• server.crt
• server.key

后续如果发生IP变化，可以直接更换这里的文件

下面看一下NGINX的配置

#user  nobody;
worker_processes  1;

#error_log  logs/error.log;
#error_log  logs/error.log  notice;
#error_log  logs/error.log  info;

#pid        logs/nginx.pid;


events {
    worker_connections  1024;
}


http {
    include       mime.types;
    default_type  application/octet-stream;
	


    #log_format  main  '$remote_addr - $remote_user [$time_local] "$request" '
    #                  '$status $body_bytes_sent "$http_referer" '
    #                  '"$http_user_agent" "$http_x_forwarded_for"';

    #access_log  logs/access.log  main;

    sendfile        on;
    #tcp_nopush     on;

    #keepalive_timeout  0;
    keepalive_timeout  65;

    #gzip  on;

	map $http_upgrade $connection_upgrade {
		default upgrade;
		'' close;
	}
	
    server {
        listen       443 ssl;
        server_name  127.0.01;
		ssl_certificate     httpsConfig/server.crt;
		ssl_certificate_key httpsConfig/server.key;
		ssl_session_cache    shared:SSL:1m;
		ssl_session_timeout  5m;
		ssl_ciphers  HIGH:!aNULL:!MD5;
		ssl_prefer_server_ciphers  on;

        #charset koi8-r;

        #access_log  logs/host.access.log  main;
		
		location /map/ {
            alias   googlemaps/roadmap/;
        }
		# http使用常规的nginx代理策略，前端正常使用https进行连接
		location / {
            root   html;
            index  index.html index.htm;
			proxy_pass http://127.0.0.1:12345;
			proxy_http_version 1.1;
			proxy_set_header Upgrade $http_upgrade;
			proxy_set_header Connection "upgrade";
			client_max_body_size 22m;
			proxy_set_header Host $host:$server_port;
			proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
            proxy_set_header X-Forwarded-Proto $scheme;
            proxy_set_header X-Forwarded-Port $server_port;
			proxy_redirect http:// $scheme://;
        }
		# websocket使用nginx进行代理，这里用的是http握手方式，前端使用wss进行连接
		location /MyWebSocket/websocket {
            root   html;
            index  index.html index.htm;
			proxy_pass http://127.0.0.1:12346/MyWebSocket/websocket;
			proxy_http_version 1.1;
			proxy_set_header Upgrade $http_upgrade;
			proxy_set_header Connection "upgrade";
        }
		
		
        #error_page  404              /404.html;

        # redirect server error pages to the static page /50x.html
        #
        error_page   500 502 503 504  /50x.html;
        location = /50x.html {
            root   html;
        }
    }
	
}