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I am trying to connect to my Minecraft server, but the connection is refused

mm flag

in the Minecraft multiplayer menu, I put the name and IP address in correctly and get a (connection refused: no further information) error. I am running ubuntu 20.04 and Minecraft java 1.19.3. my java version is up to date. I have tried making a fresh ubuntu install but keep getting the same error. I have also noticed that when I am using a Putty ssh connection, I am able to connect quickly. I have configured the port 25565 that Minecraft uses to allow access. I have no leads as to what the issue is and supposedly the server side is receiving only one error that I can find. when using sudo apt update/upgrade i found this.

The repository 'https://ppa.launchpadcontent.net/webupd8team/java/ubuntu jammy Release' does not have a Release file. N: Updating from such a repository can't be done securely, and is therefore disabled by default. N: See apt-secure(8) manpage for repository creation and user configuration details.

when I attempt to see apt-secure 8 I get this error sudo: apt-secure: command not found is this an issue from the internet or server?

user535733 avatar
cn flag
Please [edit your question](https://askubuntu.com/posts/1449232/edit): How did you determine that you are using the correct IP address? Are client and server on the same LAN? Or are they connecting across the internet? How did you determine that the Minecraft Server application is actually running?
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