Question

我正在AWS上托管一个网站。我通过letsencrypt为我的域xxxxx.com和www.xxxxx.com创建了SSL证书。（在这篇博文中，我会在可能的敏感信息中加上“ xxxx”，但是如果需要帮助，我可以提供此信息。）

一周左右之前，证书已过期。我正在尝试续订证书，这就是我得到的：

ubuntu:~$ sudo certbot renew

Saving debug log to /var/log/letsencrypt/letsencrypt.log


Processing /etc/letsencrypt/renewal/xxxxx.com.conf

Cert is due for renewal, auto-renewing...
Plugins selected: Authenticator nginx, Installer nginx
Starting new HTTPS connection (1): acme-v01.api.letsencrypt.org
Renewing an existing certificate
Performing the following challenges:
tls-sni-01 challenge for xxxxx.com
tls-sni-01 challenge for www.xxxxx.com
Waiting for verification...
Cleaning up challenges
Attempting to renew cert (xxxxx.com) from /etc/letsencrypt/renewal/xxxxx.com.conf produced an unexpected error: Failed authorization procedure. www.xxxxx.com (tls-sni-01): urn:acme:error:dns :: DNS problem: NXDOMAIN looking up A for www.xxxxx.com. Skipping.
All renewal attempts failed. The following certs could not be renewed:
  /etc/letsencrypt/live/xxxxx.com/fullchain.pem (failure)



All renewal attempts failed. The following certs could not be renewed:
  /etc/letsencrypt/live/xxxxx.com/fullchain.pem (failure)

1 renew failure(s), 0 parse failure(s)

IMPORTANT NOTES:
 - The following errors were reported by the server:

   Domain: www.xxxxx.com
   Type:   None
   Detail: DNS problem: NXDOMAIN looking up A for www.xxxxx.com

最初的想法显然是我的A记录有问题。但是执行dig命令会发现：

ubuntu:~$ dig xxxxx.com any

xxxxx.com.  60  IN  TXT "MS=msxxxxxx"
xxxxx.com.  60  IN  MX  0 xxxxx.mail.protection.outlook.com.
xxxxx.com.  60  IN  SOA ns-xxxx.awsdns-xx.org. awsdnshostmaster.amazon.com. x xxxx xxxx xxxxx xxxxx
xxxxx.com.  60  IN  NS  ns1.bdm.microsoftonline.com.
xxxxx.com.  60  IN  NS  ns2.bdm.microsoftonline.com.
xxxxx.com.  60  IN  NS  ns3.bdm.microsoftonline.com.
xxxxx.com.  60  IN  NS  ns4.bdm.microsoftonline.com.
xxxxx.com.  60  IN  A   xx.xx.xxx.xxx

并且：

ubuntu:~$ dig www.xxxxx.com any

www.xxxxx.com.  60  IN  A   xx.xx.xxx.xxx

因此似乎存在A记录。是不是我的域名的www版本没有NS记录？我不确定如何解决此问题。谢谢！

Answer 1

您需要为www添加A记录条目。

www A xx.xxx.xx.xx

Letsencrypt证书已过期NGinx更新故障排除

1 个答案: