Install a Minecraft Server on CentOS 7

Creating 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 [email protected]
[[email protected] ~]# 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 run your Minecraft server under. This is for security purposes as it is not good practice to run a Minecraft server as root.

adduser mcuser
#set a secure password.
passwd mcpassword
#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 - mcuser
mkdir minecraft
cd minecraft
wget -O minecraft_server.jar https://launcher.mojang.com/v1/objects/1b557e7b033b583cd9f66746b7a9ab1ec1673ced/server.jar
chmod +x minecraft_server.jar
screen
echo "eula=true" > eula.txt
#start your Minecraft Server
java -Xmx5376M -Xms5376M -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 -Xmx3840M -Xms3840M -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.

#add user Type 
whitelist add “USERNAME”

Centos Linux delete all files in a folder or directory

You need to pass the following options:
rm -rf dir1
rm -rf /path/to/dir/
rm -rf /home/vivek/oldschoolpics/

Command to delete and remove files

rm filename
OR
unlink filename

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