Minecraft - Revision history

KN6DWI: Wrote troubleshooting steps for connection failures

2026-08-27T19:31:35Z

Wrote troubleshooting steps for connection failures

← Older revision		Revision as of 19:31, 27 August 2026
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	== Troubleshooting ==		== Troubleshooting ==
			=== Can't connect to Minecraft server from either LAN or 44Net ===
			Check that the port for your Minecraft server is opened in the firewall. If using a firewall such as <code>firewalld</code> that allows interfaces to be moved between zones, ensure the rules have been added to the zones containing your LAN and WireGuard interfaces.

			=== Minecraft server is only accessible over LAN, not 44Net ===
			Ensure that your 44Net tunnel is up. On Linux systems, check its status with <code>systemctl status <name of systemd unit</code>. The default <code>systemd</code> unit name for a WireGuard tunnel started with <code>wg-quick</code> is <code>wg-quick@wg0</code>. Also check the 44Net Connect tunnels page to see if the endpoint thinks your tunnel is connected. The webpage can take a few minutes to update after the tunnel is enabled. If after a few minutes, the device and endpoint still disagree on whether your tunnel is up, you may have configuration issues. Make sure your IPv4 address in the configuration file is set to a /32, not a /24, as this can prevent the endpoint from updating the status page properly.

			If the tunnel is up and you're still having issues, double check your firewall configuration. <code>firewalld</code> users should make sure port 25565 is open in the zone(s) containing the LAN and WireGuard interfaces. (The recommended configuration is to place the WireGuard interface for your tunnel in a less permissive zone for security purposes.)

	[[Category:Use Cases]]		[[Category:Use Cases]]

KN6DWI: Wrote Minecraft server setup section

2026-08-27T19:23:43Z

Wrote Minecraft server setup section

← Older revision		Revision as of 19:23, 27 August 2026
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	== Step 3: Set up your Minecraft server ==		== Step 3: Set up your Minecraft server ==
	Download a Minecraft server jar file [https://www.minecraft.net/en-us/download/server from the official Minecraft website].		=== Download the server jar ===
			Download a Minecraft server jar file [https://www.minecraft.net/en-us/download/server from the official Minecraft website], and put it in its own folder. When you run the jar file, other server files will be generated in this folder. The official website recommends starting it with the following command:

			<code>java -Xmx4G -Xms4G -jar <server jar name>.jar nogui</code>

			The flag <code>-Xms4G</code> sets the minimum memory allocation to 4 gigabytes, and the flag <code>-Xmx4G</code> sets the maximum memory allocation to 4 gigabytes. This allocation should always be at least 1 gigabyte less than the amount of memory in your entire system, as the operating system needs some memory for itself. If you have exactly 4 GB of RAM, decrease the amount allocated in these flags. If you have more memory, you can set them higher, but it's not required. Setting them to be the same forces the memory allocation to be a fixed size, which improves performance by avoiding the need to request more memory in real time.

			=== Configure the server ===
			The first time you start the server, it will tell you to agree to the End User License Agreement and create the <code>eula.txt</code> file, then quit. Read the [https://www.minecraft.net/en-us/eula Minecraft End User License Agreement], then change the last line of the <code>eula.txt</code> file from <code>eula=false</code> to <code>eula=true</code>.

			Since your server will be exposed to the internet, you may want to enable the whitelist to prevent random people from joining. To do this, edit the <code>server.properties</code> text file, and set <code>enforce-whitelist=true</code> as well as <code>white-list=true</code>. Each player who wants to join will need to be added to the whitelist by running the command <code>whitelist add <username></code> in the server console or in the client of a server operator. Add someone as an operator by running <code>op <username></code>, and remove them by running <code>deop <username></code>.

			After configuring the server, start it up again using the command specified in the previous section. Test connectivity by joining via the address of your 44Net Connect tunnel, which is visible in the 44Net Connect tunnels page, or in the configuration file for your tunnel.

			== Troubleshooting ==

	[[Category:Use Cases]]		[[Category:Use Cases]]

KN6DWI: Fix link formatting

2026-08-27T19:03:15Z

Fix link formatting

← Older revision		Revision as of 19:03, 27 August 2026
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	== Step 2: Set up 44Net Connect tunnel ==		== Step 2: Set up 44Net Connect tunnel ==
	Next, set up a single device tunnel on the machine that will host your Minecraft server. Go to the [~~list of single device tunnel tutorials](~~https://wiki.ampr.org/wiki/44Net_Connect/Single_Device_Tunnel#Tutorials) and follow the one for your operating system.		Next, set up a single device tunnel on the machine that will host your Minecraft server. Go to the [[https://wiki.ampr.org/wiki/44Net_Connect/Single_Device_Tunnel#Tutorials list of single device tunnel tutorials]] and follow the one for your operating system.

	== Step 3: Set up your Minecraft server ==		== Step 3: Set up your Minecraft server ==

KN6DWI: Direct people to the list of OS-specific tutorials

2026-08-27T19:02:43Z

Direct people to the list of OS-specific tutorials

← Older revision		Revision as of 19:02, 27 August 2026
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	== Step 2: Set up 44Net Connect tunnel ==		== Step 2: Set up 44Net Connect tunnel ==
			Next, set up a single device tunnel on the machine that will host your Minecraft server. Go to the [list of single device tunnel tutorials](https://wiki.ampr.org/wiki/44Net_Connect/Single_Device_Tunnel#Tutorials) and follow the one for your operating system.

	== Step 3: Set up your Minecraft server ==		== Step 3: Set up your Minecraft server ==

KN6DWI: Tell people to open port 25565

2026-08-27T18:31:30Z

Tell people to open port 25565

← Older revision		Revision as of 18:31, 27 August 2026
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	== Step 1: Configure your firewall ==		== Step 1: Configure your firewall ==
	Ensure you have a firewall program installed, and configure it so that only the desired ports are exposed. If you're using SSH, avoid exposing it to the internet unless you're willing to secure it against constant attack. For more information on firewall configuration, see [[Firewalling Basics]].		Ensure you have a firewall program installed, and configure it so that only the desired ports are exposed. If you're using SSH, avoid exposing it to the internet unless you're willing to secure it against constant attack. Open port 25565 to TCP traffic to allow connections to your Minecraft server. For more information on firewall configuration, see [[Firewalling Basics]].

	== Step 2: Set up 44Net Connect tunnel ==		== Step 2: Set up 44Net Connect tunnel ==

KN6DWI: Added link to firewalling basics

2026-08-27T18:14:45Z

Added link to firewalling basics

← Older revision		Revision as of 18:14, 27 August 2026
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	== Step 1: Configure your firewall ==		== Step 1: Configure your firewall ==
	Ensure you have a firewall program installed, and configure it so that only the desired ports are exposed. If you're using SSH, avoid exposing it to the internet unless you're willing to secure it against constant attack.		Ensure you have a firewall program installed, and configure it so that only the desired ports are exposed. If you're using SSH, avoid exposing it to the internet unless you're willing to secure it against constant attack. For more information on firewall configuration, see [[Firewalling Basics]].

	== Step 2: Set up 44Net Connect tunnel ==		== Step 2: Set up 44Net Connect tunnel ==

KN6DWI: Created categories

2026-08-27T18:10:34Z

Created categories

← Older revision		Revision as of 18:10, 27 August 2026
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	* Configuration file from 44Net Connect		* Configuration file from 44Net Connect
	* Some sort of internet access		* Some sort of internet access

			== Step 1: Configure your firewall ==
			Ensure you have a firewall program installed, and configure it so that only the desired ports are exposed. If you're using SSH, avoid exposing it to the internet unless you're willing to secure it against constant attack.

			== Step 2: Set up 44Net Connect tunnel ==

			== Step 3: Set up your Minecraft server ==
			Download a Minecraft server jar file [https://www.minecraft.net/en-us/download/server from the official Minecraft website].


	[[Category:Use Cases]]		[[Category:Use Cases]]

KN6DWI: Discussed latency penalty

2026-08-27T00:55:54Z

Discussed latency penalty

← Older revision		Revision as of 00:55, 27 August 2026
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	If you want to host a Minecraft server, but are behind {{Term\|CGNAT}} or can't port forward for other reasons, 44Net Connect will let you make your server publicly accessible.		If you want to host a Minecraft server, but are behind {{Term\|CGNAT}} or can't port forward for other reasons, 44Net Connect will let you make your server publicly accessible.
			This will add latency, since connections are routed first through the 44Net Connect endpoint and then to your Minecraft server. This latency can be minimized by picking a 44Net Connect node
			physically close to you and your players.

	Prerequisites:		Prerequisites:

KN6DWI: Created page

2026-08-27T00:18:33Z

Created page

New page

If you want to host a Minecraft server, but are behind {{Term|CGNAT}} or can't port forward for other reasons, 44Net Connect will let you make your server publicly accessible.

Prerequisites:
* 44Net Portal account
* Verified callsign
* Configuration file from 44Net Connect
* Some sort of internet access

[[Category:Use Cases]]