客户端和服务器不支持一般SSL协议版本或加密时间 The client and server do not support general SSL protocol version or encryption time

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21

因为Centos 7自带防火墙，本来就默认屏蔽所有端口。

我个人不建议关掉防火墙，如果你不用来做某些服务（你懂的），打开防火墙后添加这些规则比较合适 sudo firewall-cmd --add-service http,https,ssh (SSH 前提是你没有改ssh端口）

LE默认是连接端口80来验证网站所有权

22

Can it be solved only by closing the firewall?

23

okay，I’ll try it.
thanks

24

If you want to use the HTTP-01 challenge and not the DNS-01 challenge, then you need to be able to receive incoming port 80 connections on your server.

25

Please...……………………...

27

未找到服务111

sanwzzz 28

111

29

对对对…抱歉…

sudo firewall-cmd --add-service http
sudo firewall-cmd --add-service https
sudo firewall-cmd --add-service ssh

建议要么换个SSH端口，要么弄个Fail2ban…

还有…必须要用caddy嘛…

30

caddy简单点…Apache, nginx太难…

31

There is no service running on port 80 nor on port 443.

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32

我觉得你可以看一下这个文件…
Check this page out…

https://segmentfault.com/a/1190000008742322
虚拟主机 节

谢谢

33

thanks,The problem has been solved. firewallprotection is not closed