Certbot MisconfigurationError：nginx重启失败

Question

在 Ubuntu 16.04、Certbot 0.28.0 和 nginx 1.10.3 的设置中，我无法使用 Certbot 续订现有证书。

1. 当我运行时sudo certbot renew，它失败并出现以下错误：

   Hook command "nginx -s stop" returned error code 1
   Error output from nginx:
   nginx: [error] invalid PID number "" in "/run/nginx.pid"
   

2. 当我运行时sudo certbot --nginx，它因以下错误而失败：

   certbot.errors.MisconfigurationError: nginx restart failed:
   

Answer 1

您上面分享的错误并不完整，实际错误如下所示：

Encountered exception during recovery: certbot.errors.MisconfigurationError: nginx restart failed:
nginx: [emerg] bind() to [::]:443 failed (98: Address already in use)
nginx: [emerg] bind() to 0.0.0.0:443 failed (98: Address already in use)
nginx: [emerg] bind() to 0.0.0.0:80 failed (98: Address already in use)
nginx: [emerg] bind() to [::]:80 failed (98: Address already in use)

要修复此错误，请运行：

sudo fuser -k 443/tcp
sudo fuser -k 80/tcp
sudo service nginx restart
sudo certbot --nginx

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