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

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.

Discourse and Noip

Product Support

itsbhanusharma (Bhanu Sharma) April 7, 2022, 6:22pm 8

Your ISP might be blocking ports and ICMP.

Topic		Replies	Views
I am trying to install Discourse on Ubuntu BUT it's not working Self-hosting	13	1317	March 2, 2021
Installation auto-hébergée derrière une IP non-routée publiquement Self-hosting hosting	13	531	May 6, 2026
Cloudflare Tunnels - Discourse Setup Not Recognizing Hostname (Port not accessible) Self-hosting	11	597	September 29, 2024
DiscourseID installation issues Self-hosting hosting	4	194	February 13, 2026
Port 443 isn't accessible via hostname Self-hosting unsupported-install	8	1493	September 24, 2020

Discourse and Noip

Related topics