Set static ip address in Ubuntu 19.04

The network configuration settings for the server edition of Ubuntu are now stored in the following location. Create the file if it does not exist.

sudo vi /etc/netplan/01-network-manager-all.yaml

Add or edit the config file to the following. Change eno1 to your interface name and the address and gateway to the appropriate IP’s

For more information, see netplan(5).
 network:
   version: 2
   renderer: networkd
   ethernets:
     eno1:
      dhcp4: no
      addresses: [192.168.200.24/24]
      gateway: 192.168.200.1
      nameservers:
        addresses: [8.8.8.8,8.8.4.4]

Now apply the changes with the following command.

sudo netplan apply

Start Minecraft server on RAM disk Linux

Create tmpfs ramdisk.  Note if your Linux user is something other than steve you’ll need to change where appropriate.

mkdir /home/steve/mcdisk

In etc/fstab add the following

tmpfs /home/steve/mcdisk tmpfs defaults,size=4096m 0 0

This creates a 4GB ram disk at /home/steve/mcdisk

To mount it you can either reboot, or run

mount -a

Copy your current Minecraft directory to the ram disk

cp -R /home/steve/Current_MC_Server/ /home/steve/mcdisk

Create a Bash script in “/home/steve” named “ramdisk_save.sh”

Paste the following in.  You may need to install rsync if you do not have it installed

!/bin/bash

RAMDISK="/home/steve/mcram/"
MCDIR="/home/steve/1.13"

rsync -r -t $RAMDISK/ $MCDIR/
rsync -r -t $MCSTORE/ $MCPATH/

Now add the script to crontab

crontab -e

and

 */5 * * * * /home/steve/ramdisk_save.sh

This will now run every 5 minutes and sync any changes on the ram disk to the original directory.

Start the Minecraft server

java -Xmx3072M -Xms3072M -jar server.jar nogui