hi, when i enter noip domain to discourse setup i get: port 443 of computer does not appear to be accessable using hostname. when i ping that noip domain there is no response

Is there a software firewall on the host? Is the Ubuntu install a physical machine or a virtual server?

physical machine, i disabled all firewalls

Have you confirmed that the noip domain currently points to the correct IP address? If you can visit https://www.whatismyip.com from the same network as the server, you can compare that with the result when looking up the domain name at https://www.whatismyip.com/dns-lookup/

yes i confirmed. but ping (ping (domian)) gives no output

Your ISP might be blocking ports and ICMP.

alredy fixed thanks for all your help

just i installed development verision that is running on ip adress

You don’t want to run the development version on a public ip. Lots of security is turned off. For example, you can log in as any user without a password.

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Xcept (Xcept) 8 באפריל,‏ 2022,‏ 12:41pm 13

please, someone send me instructions to set up discourse on noip hostname

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