当我尝试获取 Lets 加密证书时，会出现此消息，因为 IPtables 规则。我无法弄清楚哪个规则阻止了它，所以我想附加“允许”规则。您知道正确的 iptables 规则命令吗？
level=error msg="Unable to obtain ACME certificate for domains \"domain.com\": cannot get ACME client get directory at 'https://acme-v02.api.letsencrypt.org/directory': Get \"https://acme-v02.api.letsencrypt.org/directory\": dial tcp: lookup acme-v02.api.letsencrypt.org on 127.0.0.11:53: read udp 127.0.0.1:50147->127.0.0.11:53: i/o timeout" routerName=traefik-secure@docker providerName=letsencrypt.acme rule="Host(`domain.com`)"