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Install a Minecraft Server on CentOS 7

Published on: Tue, Jan 24, 2017 at 4:13 pm EST
This article is a port of my "Install a Minecraft Server on CentOS 6" tutorial. It has been updated for CentOS 7.

In this tutorial, I will guide you through setting up a Minecraft server on a high performance SSD VPS at Vultr. You will learn how to set up a Minecraft server on CentOS 7 x64.

Requirements

Installation

To create a Minecraft server is easy. Login to your new CentOS 7 1GB RAM VPS Server at Vultr and install Java 1.6.0 Open JDK.

ssh root@ip.ip.ip.ip
[root@vultr ~]# yum install java-1.6.0-openjdk
<some output here>
Is this ok [y/N]: y

Open the Minecraft server port in firewalld.

firewall-cmd --zone=public --permanent --add-port=25565/tcp
firewall-cmd --reload

Make a user to run your Minecraft server under. This is for security purposes as it is not good practice to run a Minecraft server as root.

adduser mcserver
#set a secure password.
passwd mcserver
#this allows you to run screen while su'd from root for the next step
chown mcserver `tty`

Now lets change users and install Minecraft! Change the wget URL accordingly for newer versions of Minecraft.

su - mcserver
mkdir minecraft
cd minecraft
wget -O minecraft_server.jar https://s3.amazonaws.com/Minecraft.Download/versions/1.11.2/minecraft_server.1.11.2.jar
chmod +x minecraft_server.jar
screen
echo "eula=true" > eula.txt
#start your Minecraft Server
java -Xmx768M -Xms768M -jar minecraft_server.jar nogui

Congratulations, your Minecraft server is now up and running on your high performance SSD VPS server!

Notes

To install on a 768MB VPS follow the same commands above but change the last java command to:

java -Xmx512M -Xms512M -jar minecraft_server.jar nogui

If you require more players (and thus more RAM) you just launch a larger instance and then simply subtract 256M from the amount of RAM your instance has allocated. For example a 4096 instance would launch with -XmX3840M -Xms3840M.

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