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[问与答] Let's Encrypt 证书申请失败

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想用 certbot 申请一条泛域名证书,像这样:
certbot certonly --manual --preferred-challenges=dns -d "*.域名地址.cn"

然后提示让去添加一条 dns 解析记录,我用的是腾讯云的 dnspod ,添加完之后等了一天,然后提示 Challenge failed for domain 域名地址.cn

这是啥原因呢?

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