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
AI-generated summary
The discussion revolves around setting up Discourse using a NoIP domain, with user Xcept facing issues accessing port 443 and resolving connectivity problems. Stephen and Simon_Manning help troubleshoot the setup, confirming domain resolution and network configuration. itsbhanusharma suggests that ISP restrictions or firewall settings might be the cause, and later recommends using Cloudflare Tunnels as a free alternative to NoIP. Xcept expresses reluctance to pay or provide a credit card, but itsbhanusharma clarifies that Cloudflare Tunnels are free and don’t require payment. Decorbuz questions Xcept’s concern about credit card use, noting Cloudflare’s reputation and the fact that no charges are applied. The conversation highlights the trade-offs between self-hosting with NoIP and using free, secure alternatives like Cloudflare Tunnels.
Are you trying to host Discourse on a domestic internet connection?
Does the router/firewall have port 443 opened and forwarded to the machine where Discourse will be installed.
yes, port 443 is opened
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.
already fixed thanks for all your help
And how did you solve it?
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.
please, someone send me instructions to set up discourse on noip hostname 
Why do you need it on noip? You can use cloudflare tunnels instead which is much better.
because i don’t wanna pay
Cloudflare tunnels is free
ref: A Boring Announcement: Free Tunnels for Everyone
ok, how to do it ?
Follow the instructions.
is there any other solution? i don’t want to give my credit card number to cloudflare.
No, there’s no other official solution. You’re on your own
Edit: Discourse is a Free & Open-Source software which you can host yourself without having to pay for any upfront purchase of license etc.
However, You still have to pay for a domain name, hosting, email etc. These costs can not be avoided.