Minecraft - Friend cannot connect to server and receives "Unknown Host" error

System Information

Field Value
Operating System Linux - Debian GNU/Linux 12 on x86_64
Product AMP ‘Phobos’ v2.6.0.6 (Mainline)
Virtualization Docker
Application Minecraft
Module MinecraftModule
Running in Container Yes
Current State Ready

Task

Connect to Minecraft Server

Problem Description

Issue

I am trying to have my friend connect to my 1.21 minecraft server, but she keeps getting the same error, “Unknown Host.” None of my other friends have had this error. We made sure that the server address was typed in correctly, that the installation was the correct version, that her internet is connected, that her windows firewall allows java and minecraft, and that her antivirus allows java and minecraft. She even flushed her DNS Cache. After all of this, many hours of troubleshooting, nothing is working. She was able to connect to Hypixel, a different server, but my server kept giving “Unknown Host” error. Is there anything I can do on my end to remedy this? Is there something I have missed on her end? Please help.

Reproduction Steps

  • Open Minecraft Launcher
  • Select correct installation (1.21)
  • Click play
  • Select multiplayer, then add server
  • Type in server address correctly
  • Attempt to connect to server

Try using the IP rather than the domain name. Hostinger’s DNS records seem to be unreliable from the amount of people running into the issue

How can I find the IP address?

It would be in whatever VPS info panel Hostinger gave you (not part of AMP)