使用LetsEncrypt生成SSL证书

来自Domoticz

This article shows you how to add a Lets Encrypt certificate to Domoticz so you can access your server over a secure HTTPS channel.

The provided steps are executed using a Raspberry Pi, but they should work on every Linux OS.

Prerequisites (see here : http://www.domoticz.com/wiki/Native_HTTPS_/_SSL_support)

  • Port 80 (HTTP) and 443 (HTTPS) are forwarded to your Domoticz server
  • You own a domain name
  • The (sub)domain name for Domoticz has a DNS entry that points to your external IP address

Startup script

If you want Domoticz to use only HTTPS, you will need to edit the startup script.

sudo vi /etc/init.d/domoticz.sh

DAEMON_ARGS="-daemon -sslwww 443"

安装Let’s Encrypt

git clone https://github.com/letsencrypt/letsencrypt

生成证书

命令：

cd letsencrypt sudo ./letsencrypt-auto certonly --manual --email 你的邮箱 -d 你的域名

注意：域名需要写全，比如使用 home.domoticz.cn，就不能只写 domotiz.cn。

如果你有多个域名，可以在命令后面继续添加-d参数，每个-d参数后面对应一个域名。

如果显示以下信息，不要按回车键： 

If you don't have HTTP server configured, you can run the following command on the target server (as root):
mkdir -p /tmp/letsencrypt/public_html/.well-known/acme-challenge
cd /tmp/letsencrypt/public_html
printf "%s" <some random string> > .well-known/acmechallenge/<some random string>
# run only once per server:
$(command -v python2 || command -v python2.7 || command -v python2.6) -c \
"import BaseHTTPServer, SimpleHTTPServer; \
s = BaseHTTPServer.HTTPServer(('', 80), SimpleHTTPServer.SimpleHTTPRequestHandler); \
s.serve_forever()" 
Press ENTER to continue

新打开一个Shell窗口，执行以下命令将Let's Encrypt之前给出的随机字符文件加入网站，以通过Let's Encrypt的域名验证： 

mkdir -p /home/pi/domoticz/www/.well-known/acme-challenge/
cd /home/pi/domoticz/www/
printf "%s" 随机字符 > .wellknown/acmechallenge/随机字符

注意：此操作需要你的Domoticz能够在外网通过80端口访问。如果你的80端口在路由器中设置了端口转发也无法在外网打开，可能是你的网络运营商没有开放80端口。这时你需要另一台可以通过80端口访问的虚拟主机或服务器，绑定你的域名后将验证文件放到网站内。

确认在浏览器中打开 http://你的域名/.well-known/acme-challenge/随机字符 可以正常访问。 然后回到之前的Shell窗口，按回车键继续生成证书。

如果一切正常，应该返回以下信息： 

IMPORTANT NOTES:
 - Congratulations! Your certificate and chain have been saved at
   /etc/letsencrypt/live/<your domain>/fullchain.pem. Your
   cert will expire on <date>. To obtain a new version of the
   certificate in the future, simply run Let's Encrypt again.
 - If you like Let's Encrypt, please consider supporting our work by:

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

将证书加入Domoticz

最后要做的是将创建的证书添加到Domoticz。 很简单，执行以下命令即可：

sudo rm ~/domoticz/server_cert.pem
sudo cat /etc/letsencrypt/live/你的域名/privkey.pem >> ~/domoticz/server_cert.pem
sudo cat /etc/letsencrypt/live/你的域名/fullchain.pem >> ~/domoticz/server_cert.pem

如果重启domoticz服务后出现以下错误提示 : Error: [web:443] missing SSL DH parameters from file 添加DHparam即可 :

sudo cat /etc/ssl/certs/dhparam.pem >> ~/domoticz/server_cert.pem

取自“https://www.domoticz.cn/wiki/index.php?title=使用LetsEncrypt生成SSL证书&oldid=75”