我想为我的服务器生成一个 Let's Encrypt 证书，以便我可以自动更新它。我运行了该命令certbot --nginx -d testpbx.info.eu并收到以下错误。
certbot --nginx -d testpbx.info.eu
Saving debug log to /var/log/letsencrypt/letsencrypt.log
Plugins selected: Authenticator nginx, Installer nginx
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Please read the Terms of Service at
https://letsencrypt.org/documents/LE-SA-v1.2-November-15-2017.pdf. You must
agree in order to register with the ACME server at
https://acme-v02.api.letsencrypt.org/directory
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(A)gree/(C)ancel: a
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Would you be willing to share your email address with the Electronic Frontier
Foundation, a founding partner of the Let's Encrypt project and the non-profit
organization that develops Certbot? We'd like to send you email about our work
encrypting the web, EFF news, campaigns, and ways to support digital freedom.
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(Y)es/(N)o: n
Obtaining a new certificate
Performing the following challenges:
http-01 challenge for testpbx.info.eu
Using default addresses 80 and [::]:80 ipv6only=on for authentication.
nginx: [warn] duplicate network "::0/0", value: "0", old value: "1" in /etc/nginx/sites-enabled/3cxpbx:14
nginx: [warn] "ssl_stapling" ignored, issuer certificate not found for certificate "/var/lib/3cxpbx/Bin/nginx/conf/Instance1/testpbx.info.eu-crt.pem"
Waiting for verification...
Cleaning up challenges
nginx: [warn] duplicate network "::0/0", value: "0", old value: "1" in /etc/nginx/sites-enabled/3cxpbx:14
nginx: [warn] "ssl_stapling" ignored, issuer certificate not found for certificate "/var/lib/3cxpbx/Bin/nginx/conf/Instance1/testpbx.info.eu-crt.pem"
Failed authorization procedure. testpbx.info.eu (http-01): urn:ietf:params:acme:error:connection :: The server could not connect to the client to verify the domain :: 185.203.28.51: Fetching http://testpbx.info.eu/.well-known/acme-challenge/82VDIjmjQpI-ljtnkFsT8HpUvLytub6Obb7ox5GAzOg: Timeout during connect (likely firewall problem)
IMPORTANT NOTES:
- The following errors were reported by the server:
Domain: testpbx.info.eu
Type: connection
Detail: 185.xxx.xx.xx: Fetching
http://testpbx.info.eu/.well-known/acme-challenge/82VDIjmjQpI-ljtnkFsT8HpUvLytub6Obb7:
Timeout during connect (likely firewall problem)
To fix these errors, please make sure that your domain name was
entered correctly and the DNS A/AAAA record(s) for that domain
contain(s) the right IP address. Additionally, please check that
your computer has a publicly routable IP address and that no
firewalls are preventing the server from communicating with the
client. If you're using the webroot plugin, you should also verify
that you are serving files from the webroot path you provided.
- Your account credentials have been saved in your Certbot
configuration directory at /etc/letsencrypt. You should make a
secure backup of this folder now. This configuration directory will
also contain certificates and private keys obtained by Certbot so
making regular backups of this folder is ideal.
我想指出的是，我的域名输入正确，并且此域名的 A DNS 记录包含正确的 IP 地址。包含正确的 IP 地址，我也ping 8.8.8.8.
答案1
您的服务器可供外部观察者访问吗？尝试curl http://testpbx.info.eu。如果失败，则可能是防火墙阻止了它，您需要在服务器上打开端口 80。如何操作取决于您的操作系统，因为不同的系统上存在不同的防火墙。