@Cax 在 Discourse搭了两天，均失败，已老实中发帖这两天又想搭个Discourse玩玩，照着这几个教程：一直不成功，错误提示： Checking your domain name . . .WARNING: Port 443 of computer does not appear to be accessible using hostname: xxx.comWARNING: Connection to

@Cax 在 Discourse搭了两天，均失败，已老实中发帖

这两天又想搭个Discourse玩玩，照着这几个教程： 




一直不成功，错误提示： 
Checking your domain name . . .
WARNING: Port 443 of computer does not appear to be accessible using hostname:  xxx.com
WARNING: Connection to http://xxx.com  (port 80) also fails.

This suggests that xxx.com resolves to some IP address that does not reach this 
machine where you are installing discourse.

The first thing to do is confirm that xxx.com ...