配置完成访问浏览器后，网站前面会出现红色的叉，这是因为在网络服务器上找不到对应的证书厂商，不妨碍使用。

Nginx 开启SSL 配置证书和私钥，需要安装openssl

这里以nginx1.16.1为例

获取安装包

[root@~]curl -O http://nginx.org/download/nginx-1.16.1.tar.gz
或者 wget http://nginx.org/download/nginx-1.16.1.tar.gz

解压

[root@~] tar -zxvf nginx-1.16.1.tar.gz

编译模块

[root@~] cd nginx-1.16.1
./configure --prefix=/usr/local/nginx --with-http_stub_status_module --with-https_ssl_module

如果之前已经安装nginx的，这里就不再make install，否则会覆盖掉之前的安装和配置

[root@ nginx-1.16.1]make

备份原先的启动文件

[root@~]cp /usr/local/nginx/sbin/nginx /usr/local/nginx/sbin/nginx.bak

查看模块是否加载

[root@~]/usr/local/nginx/sbin/nginx -V
nginx version: nginx/1.16.1
built by gcc 4.8.5 20150623 (Red Hat 4.8.5-39) (GCC)
built with OpenSSL 1.0.2k-fips 26 Jan 2017
TLS SNI support enabled
configure arguments: --prefix=/usr/local/nginx --with-http_ssl_module # 模块已加载

加载ssl模块后，会在nginx.conf加上配置文件HTTPS SERVER 后面的ssl信息,

注意：一般生成的目录,应该放在nginx/conf/ssl目录，可以自定义

生成证书和密钥 -des3: CBC模式的DES加密 以下示例生成一个1024位的RSA私钥

[root@~]openssl genrsa -des3 -out server.key 1024

输入密码，2次

kpy@hw
Generating RSA private key, 1024 bit long modulus
....++++++
.......................++++++
e is 65537 (0x10001)
Enter pass phrase for server.key:
Verifying - Enter pass phrase for server.key:

创建服务器证书的申请文件 server.csr

[root@~]openssl req -new -key server.key -out server.csr
Enter pass phrase for server.key: # 输入上面的密码
You are about to be asked to enter information that will be incorporated
into your certificate request.
What you are about to enter is what is called a Distinguished Name or a DN.
There are quite a few fields but you can leave some blank
For some fields there will be a default value,
If you enter ‘.‘, the field will be left blank.

填写下面的信息

Country Name (2 letter code) [XX]:CN # 国家缩写
State or Province Name (full name) []:GuangDong #省份
Locality Name (eg, city) [Default City]:GuangZhou # 市
Organization Name (eg, company) [Default Company Ltd]:lw666.cn # 公司名
Organizational Unit Name (eg, section) []: # 组织名，可以不填
Common Name (eg, your name or your server‘s hostname) []: #公共名，可以不填
Email Address []:123456@lw666.cn # 邮箱地址，可以不填
Please enter the following ‘extra‘ attributes
to be sent with your certificate request
A challenge password []: # 加强的密码，可以不填
An optional company name []: # 可以不填

备份文件，跳过证书验证密码，生成server.crt文件

[root@~]cp server.key server.key.org
[root@~]openssl rsa -in server.key.org -out server.key
Enter pass phrase for server.key.org: # 输入上面的密码
writing RSA key

生成证书， 证书有效天数(如果输入9999表示永久) 签名，开启双向认证

[root@~]openssl x509 -req -days 180 -in server.csr -signkey server.key -out server.crt
Signature okbr/>subject=/C=CN/ST=GuangDong/L=GuangZhou/O=lwops.cn/emailAddress=123456@lw666.cn
Getting Private key

http://nginx.org/en/docs/http/configuring_https_servers.html#single_http_https_server

单个server可以80和433共存，但80的还是http

#  HTTPS server
#
 server {
   listen       443 ssl;
   server_name  localhost;
 # ssl        on; nginx1.15版本之前需要加，之后的不用加
 # 证书路径和密钥路径

nginx开启ssl配置https证书和密钥过程

原文：https://blog.51cto.com/14483703/2477954