手动配置泛域名https

使用 certbot 在CentOS7下配置nginx支持泛域名https, 例如我们申请zqyu.com这个域名的泛域名证书

一、 安装certbot

$ sudo yum install python2-certbot-nginx

二、 生成证书

$ certbot certonly --manual  -d zqyu.com -d *.zqyu.com --preferred-challenges dns-01 --server https://acme-v02.api.letsencrypt.org/directory

安装过程中出现错误

ImportError: No module named 'requests.packages.urllib3'

更新软件即可

$ pip uninstall requests
$ pip uninstall urllib3
$ yum remove python-urllib3
$ yum remove python-requests
$ yum install python-urllib3
$ yum install python-requests
$ yum install certbot

重新执行生成证书的命令，按照提示填写相对应的信息，在域名的解析中添加解析TXT记录

Please deploy a DNS TXT record under the name
_acme-challenge.[你的域名] with the following value:

LAgFSE1_ML8l2T35GuyW1Iq-HZ8dncQUkxd131fZq3w[这一串是安装过程中生成的token]

Before continuing, verify the record is deployed.

安装成功后提示如下

IMPORTANT NOTES:
 - Congratulations! Your certificate and chain have been saved at:
   /etc/letsencrypt/live/[你的域名]/fullchain.pem
   Your key file has been saved at:
   /etc/letsencrypt/live/[你的域名]/privkey.pem
   Your cert will expire on 2019-01-25. To obtain a new or tweaked
   version of this certificate in the future, simply run certbot
   again. To non-interactively renew *all* of your certificates, run
   "certbot renew"
 - If you like Certbot, please consider supporting our work by:

   Donating to ISRG / Let's Encrypt:   https://letsencrypt.org/donate
   Donating to EFF:                    https://eff.org/donate-le

三、 在nginx中配置证书

server {
    listen 80;
    server_name [你的域名];
    return 301 https://$server_name$request_uri;
}
server {
    listen       443 ssl;
    server_name [你的域名];
    ssl_certificate /etc/letsencrypt/live/[你的域名]/fullchain.pem;
    ssl_certificate_key /etc/letsencrypt/live/[你的域名]/privkey.pem;
    root [你的网站根目录];
    
    location / {
        access_log off;
    }
}

重新加载nginx规则nginx -s reload即可

四、 自动更新证书

Let’s Encrypt 证书的有效期是90天，到期后需要重新安装

五、卸载

$ yum remove certbot python2-certbot-nginx
$ yum autoremove