Configure Your Minecraft Server Firewall
To understand the firewall a bit more, you need to look into how Minecraft servers are typically set up. Any external network is separated from your Minecraftâs internal network by a firewall. In absence of a firewall rule, your router acts as your firewall – preventing anyone on the internet from being able to access your Minecraft server.
Earlier in this guide under the prerequisites section, there is a note around allowing a firewall rule:
-A INPUT -p tcp âdport 25565 -j ACCEPT
Here are some of the most common port numbers and network services that use them:
- HTTPS: Port 443
- Minecraft Server: 25565
- FTP or File Transfer Protocol: 21
When you install the Minecraft servers, the default settings currently only allow SSH traffic to be able to access this server and block every other request. Minecraft uses the port 25565 to allow connections to a server which means you need to enable traffic to pass through this port. For more information, seeHow to Configure a Firewall with UFW.
You can also add a firewall rule using the ufw by running the following command:
sudo ufw allow 25565
When you do this, here is what you are trying to accomplish with this configuration:
ss -tulpn
How To Create A Minecraft Server In Java Edition
Before you get started, make sure you are running the latest version of Minecraft Java Edition. Usually, the game launcher automatically keeps updating the game if you have a reliable internet connection. With that said, lets get started:
Update your Java Version
For a server to run smoothly, it has to run on the latest version of Java. To update Java on your PC, follow these simple steps:
1. Open the start menu by pressing the Windows key and type Configure Java. Once the search completes, click on the top search result and open the Configure Java app. If you dont see the Configure Java in the search, which is unlikely, you can install the latest version from Oracles website using this link right here.
2. Within the Java control panel, move to the second tab called Update. Then, click on the Update Now button at the bottom right corner.
3. On the new pop-up window, click on the Update button.
4. The app will then ask you to remove any existing versions of Java. If you are not sure what other software uses Java on your PC, you can leave it as it is. Now, click on Update and then the Install button. The app will automatically download and install the new version of Java.
Set Up Commands to Run the Server
Once you have downloaded the Minecraft server file, its time for you to prepare it for hosting. Heres how.
2. Then, open the new text document by double-clicking on it and type the following command in it:
pause
Host Minecraft Server on Your Windows PC
How To Make A Minecraft Server
This beginners guide will help Minecraft gamers to know, How to make a Minecraft server? with the step-by-step screenshot through they can create their own server at home.
Setting up a Minecraft server can be difficult, but not with the right advice. This article is meant to present a simple and informative guide on how to make a Minecraft server for Windows and Linux .
As of 2021, Minecraft is among the most popular and successful video games. In fact, with over 200 million copies sold worldwide and more than 126 million monthly active users in 2020, Minecraft is the best-selling video game of all time. The trend will likely continue throughout the new year as well.
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Minecraft Server: Own Home Server Or Rent A Server
If you want to create and run your own Minecraft server, you will first need the appropriate hardware. In theory, a home PC is adequate for this but this also depends on the desired number of players and server setting. For three to five players, for example, the Minecraft team recommends three gigabytes of RAM, 18 gigabytes of hard drive space, and broadband resources of at least 12 MBit for the game. In addition, there are the requirements of the operating system for Windows 10, this would be another one or two gigabytes of RAM and 16 or 32 gigabytes of hard drive space .
These key numbers already make it clear that you cannot run other programs in parallel to the Minecraft server on the respective PC, so it functions exclusively as a host. The purchase of a second PC in addition to your normal device not only takes up the home broadband quota, but also means additional running costs in terms of power consumption. It is probably only an option for very few Minecraft enthusiasts.
What actually is a server? In our article on the term Server we answer this, and many more questions, addressing, among other things, the ambiguous use of the term in computer science!
Rentable server resources are also referred to as Infrastructure-as-a-Service , which is IT infrastructure provided to users by a provider as part of a service.
How To Play Minecraft On Lan
The game has long introduced the option to create a local server in your own world, and all who are on your local network will be able to connect to your server. In general, everything is simple, but there are many limitations, in this article all is described in detail. Select the desired configuration type from the contents and follow the steps described.
Contents:
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Configuring And Running The Minecraft Server
Now that you have the Minecraft jar downloaded, you are ready to run it.
First, start a screen session by running the screen command:
Once you have read the banner that has appeared, press the Spacebar. screen will present you with a terminal session like normal. This session is now detachable, which means that youâll be able to start a command here and leave it running.
You can now perform your initial configuration. Do not be alarmed when the next command throws an error. Minecraft has designed its installation this way so that users must first consent to the companyâs licensing agreement. You will do this next:
Before examining this commandâs output, letâs take a closer look at all these command-line arguments, which are tuning your server:
The first time you run this command, which normally starts your server, you will receive this output:
Output : Failed to load properties from file: server.properties : Failed to load eula.txt : You need to agree to the EULA in order to run the server. Go to eula.txt for more info.
These errors were generated because the server could not find two necessary files required for execution: the EULA , found in eula.txt, and the configuration file server.properties. Since the server was unable to find these files, it created them in your current working directory. Minecraft does this intentionally to ensure that you have read and consented to its EULA.
How To Create A Minecraft Server: Preliminary Operations
Lets get into the heart of our guide on how to create a Minecraft server. Youll see how to do it on Windows and Linux and in this section youll see the preliminary operations that you need to follow regardless of the operating system.
Well prepare the network to let other users connect to our server, and well see how to download the necessary files for the Minecraft server to work.
Keep in mind that it is not recommended to create and manage a server if you are not familiar with network and system configurations.
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Installing Java And Screen
Before we begin, keep in mind that the minimum operating system requirements for the following tutorial are Ubuntu 16.04 and CentOS 7.
Connect to your server via SSH. Open the built-in terminal shell and type the following command:
IMPORTANT: Dont forget to change both values with your real username and server IP address. When prompted, enter your username and password.
java -version
- On Ubuntu:
Import the PPA using this command in your terminal:
sudo add-apt-repository ppa:linuxuprising/java -y
To install using the APT package manager, use the following command:
sudo apt-get install oracle-java17-installer oracle-java17-set-default
- On CentOS:
sudo yum updatesudo yum install java -y
- On Ubuntu:
sudo yum install wget -y
wget https://launcher.mojang.com/v1/objects/bb2b6b1aefcd70dfd1892149ac3a215f6c636b07/server.jar
sudo nano eula.txt
eula=false
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Firewalling Nats And External Ip Addresses
- You must open a TCP/UDP port on the firewall.
- If the server in question is not reachable via a globally routable IP address, you will need to add appropriate address and/or port number translation rules to the gateway usually your router has the global IP address.
Local network dedicated servers
This only applies to Classic servers.
To correct this, you must add a function to the end of your URL, bookmarks, or whatever else you connect by. The function is: ?override=trueExample:
Note: This situation does not effect Beta servers, and you should be able to connect via an internal or external IP.
The SRV record
To manually verify the SRV record, use :
Installing The Necessary Software Packages And Configure The Firewall
With your server initialized, your first step is to install Java youâll need it to run Minecraft. By default, Ubuntu 22.04 does not provide a recent enough version of Java in order to run the newest releases of Minecraft. Fortunately, there are third-party maintainers who continue to build newer Java packages for older Ubuntu releases, and you can install them by adding their PPA, or Personal Package Archives, to your own list of package sources. You can do that with the following command:
Next, update your package sources to reflect this addition:
Press Y when prompted to confirm. If you are prompted to restart any services, press ENTER to accept the defaults and continue.
Finally, install the OpenJDK version 17 of Java, specifically the headless JRE. This is a minimal version of Java that removes the support for GUI applications. This makes it ideal for running Java applications on a server:
You also need to use a software called screen to create detachable server sessions. screen allows you to create a terminal session and detach from it, leaving the process started on it running. This is important because if you were to start your server and then close your terminal, this would kill the session and stop your server. Install screen now:
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How To Update Minecraft Server To The Latest Version
To upgrade your Minecraft to the latest version, change your current working directory to /minecraft by running the following command:
cd /minecraft
Create a backup of the world file. This is an important step as in case of any issue it is easy to restore your settings using this backup file.
sudo cp - r world world_backup
After you run the command above, the world file is copied and a backup is created with the name of world_backup.
Create a backup of the minecraft_server.jar file as well. Create a backup and name it as mincraft_server.jar_backup by running the following command:
sudo cp minecraft_server.jar minecraft_server.jar_backup
Visit the and copy the URL to the .jar file. Run the following command to download this .jar file:
sudo wget https://launcher.mojang.com/v1/objects/0a269b5f2c5b93b1712d0f5dc43b6182b9ab254e/server.jar
Version 1.17 is downloaded.
Upgrade the Minecraft server now. If you have an already running Minecraft server, stop it first. To do that, run the following command:
screen -r
You have now attached to the screen session. After it is attached, press Ctrl + C to stop the server.
To upgrade the Minecraft server, copy the new file and replace the existing version with it by running the following command:
sudo mv minecraft_server.1.17.jar minecraft_server.1.13.jar
Running this command updates the Minecraft server versions from 1.13 to 1.17.
To start using this new version, you need to restart the Minecraft server. You can do that by:
An Easier Way Of Sharing Your Server With External Users
- Download ngrok from. Youll need to sign up for a free account as well and follow their setup instructions.
- Open ngrok.com website and sign up for free. It is a tool to will make your server visible over the internet
- Now Start your Minecraft and run following in terminal for sharing the local Minecraft server
ngrok tcp 25565
- You will see the following message
Forwarding tcp://ngrok.com:12345 -> localhost:25565
Note that the 12345 stands for a unique number for you to establish a connection. Note it down
It will make your server visible over the net
- Request the friend to start Minecraft and click Multiplayer
- Next, click Direct Connect
- Now enter the following line
ngrok.com:12345
Where 12345 should be replaced with the unique number that you noted in the earlier step
- Thats all. Your friend is now connected and you can play
Note: An alternative to Direct Connect is Add Server followed by ngrok.com:12345
It can be used for troubleshooting issues
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Opening Your Server To Remote Players
If you want to play with people outside your local network you can set up port forwarding so players outside your home network can access the server. Most home broadband connections can easily support many players. Because the server doesnt have a password system, you may want to consider creating a whitelist on the server. Use the command and parameters /whitelist to adjust and view the whitelist.
Writing A Script To Launch The Server
It’s definitely boring to have to remember the command-line options for your server every time you launch it. Luckily, we can write it down in a file and just run that instead.
On Windows
The windows version of a script is called a batch file. Create a text file in the folder where you put the jar as “start.bat”, and then right click it to edit using notepad. Paste the following in:
Double click the file to start your server. You may get a “Class_Not_Found” and ServerGuiConcole error, just ignore these errorsand you should see your “Server Thread/INFO” dialog start the server.
The “pause” command is there to keep the window open so you can read what happened after the server stops.
On macOS, Linux, and FreeBSD
All these systems use a common scripting language called the “POSIX shell script” on the command line. Create a text file in the folder where you put the jar as “start.sh” and write the following in:
#!/bin/shcd"$"exec java -Xms1G -Xmx1G -jar server.jar --nogui
Now save the file. Run chmod a+x start.sh to make it executable. You can now run the file by double-clicking or by running ./start.sh in the folder .
If you want to add a pausing part like the Windows example, remove the exec word, and add a line of read -n 1 -p “Waiting…” to the end. This is useful if you are running the script by double-clicking on the GUI.
On Plan 9
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Install The Latest Version Of Java
Since Minecraft is a Java-based video game, the first step is to ensure that you have the most recent version of Java installed on your system. To do so, you can use Command Prompt.
Launch the command prompt and enter the following command. Then, press Enter. Here you can see a version of Java installed on your PC. If your Java version is out of date, then you need to update it immediately.
If you do not have Java installed on your device, then simply go to the official website of Java and download the latest version.