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 DNS Lookup - WhatIsMyIP.com®
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
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
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.
ok, then when i use “tunnels” do i need domain name or can it be from noip?
You’ll need a FQDN that is supported by cloudflare. They support most domains except for a few free ones (e.g. .tk)