How to Setup a Modded Minecraft Server (1.12.2)

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Introduction: How to Setup a Modded Minecraft Server (1.12.2)

About: Gaming and pixels and making the dings, these are a few of my favorite things.

Minecraft is a fun game to play with friends, and modding the game can add many more possibilities. Server hosting websites or Minecraft Realms cost a monthly subscription to use. If you don't have the money to have a separate website host the server for you, setting up your own server for free will be your best option. Here's how to setup a modded Minecraft server in 1.12.2 (works with most past and future updates, you can find the specific .jar file for whatever version you're hosting).

Supplies:

What you will need:

- A computer that can run modded Minecraft and a server at the same time (4gb of ram should be minimum)

- A copy of Minecraft

- A secure internet connection

- Access to your router's login information

Step 1: Install Minecraft, Add Forge Mod Loader

In order to play on a Minecraft server, you need... Minecraft! If you've purchased Minecraft, you can download it at https://my.minecraft.net/en-us/store/minecraft/#ow...

It'll download MinecraftInstaller.msi, launch it and follow the instructions to install it. Once installed, you will want to launch vanilla 1.12.2 at least once in order to install all the important stuff. Under the Installations tab, click + New, then under Versions, select 1.12.2. Select 1.12.2 from the drop down menu, and press PLAY. Once it fully loads to the menu screen, exit the game.

Next, you'll want to download and install Forge, go to this link and click on Windows Installer. https://files.minecraftforge.net/

Launch it, and click OK. Wait for it to install.

Step 2: Install Forge Server, Accept EULA

In order to start hosting a server, you need these files. Reopen the Forge installer and select Install Server, and the location you want it to be installed.
Now that its been installed, double click on forge-1.12.2-14.23.5.2838-universal.jar to launch it. once you do that, the folders logs, mods, and eula.txt will appear in the folder.

Double click on the eula.txt to open it, and change the false to true. ctrl+s or click File then Save, then close the txt. Once that's done, relaunch the .jar. You'll see a bunch more files appear in the Server folder, and a window open up titled Minecraft server. Congrats! You now have a local modded Minecraft server! But we're not here for that, we're trying to create a server that anyone can connect to. Close the Minecraft server window.

Step 3: Gather Your Mods

You can't have a modded Minecraft server without mods! You'll be able to find almost every mod ever made at this link https://www.curseforge.com/minecraft/mc-mods?filte...

Once you download the mods' .jar file, make a copy of it. Open your server's mods folder and paste the mods there. Then you'll want to move the original mods you copied to your .minecraft folder. to find it, press the windows key and type %appdata% into the search box. Once there, click on .minecraft. In there should be a folder labeled mods. If there isn't, make one. Put all of the same mod files into the mods folder.

Step 4: Reduce Lag

Before you even launch the server again, there is a way to majorly reduce the lag on the server and your computer. Right click in the Server folder and create a new text document. Title it Server Launcher. Open it, and copy and paste the following text:

java -Xmx2048M -Xms2048M -jar forge-1.12.2-14.23.5.2838-universal.jar -o true nogui

The number 2048 actually says how much ram the server will be using, 2048 being 2gb, or 4096 being 4gb. replace the number to suit how much ram you want to use.

Once the text has been pasted into the text file, select File, then Save As. Change the Save as Type to All Files, and rename the file from Server Launcher.txt to Server Launcher.bat. Now double click on the .bat file every time you want to start the server. Launch the server, let it fully load, then close it.

Step 5: Port Forward the Server

(Since this section deals with IP addresses, there will be no pictures for privacy stuff, cause IDK how IPs can be used to harm)

The server now works locally! Anyone on the same IP as yours can now join the server. In order to allow people not on the same IP to connect,you'll need to port forward your server. To do this, google Whats my IP? on Google. Take the number it gives you, copy it, and paste it into the address bar. This will most likely take you to your router's website where you can manage your router's settings. Enter the password to your router to continue. My router is a Linksys, you'll want to google around to find the steps with your specific router. You'll want to find the Port Range Forwarding section of your router, and enter in the following information.

Application Name: Minecraft server
Start ~ End Port: 25565 - 25565
Protocol: TCP
Device IP: ENTER COMPUTER'S IP HERE

Enabled: True

In order to get your computer's IP, hold down the windows key and press R. In the box that pops up, type cmd. When the command prompt opens up, type ipconfig. Look for the line labeled as IPv4 Address, and copy the IP address there. Type that number in for your Device IP above.

Step 6: All Done!

The server should now be up and running! Double click the .bat file to launch the server, start up Minecraft, and enter in your public IP (when you googled "what's my IP") in the multiplayer menu. Connect to the server, and enjoy your new world!

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51 Discussions

I made the server, and I did all the steps and I can join, but my friends can't. Does this work for anyone else?

0
AsianSam
AsianSam

11 months ago

i got around to step 5 and got lost when i type my ip into the address bar nothing pops up...

0
GhostinNeo
GhostinNeo

Reply 10 months ago

same I don't know what to do " This will most likely take you to your router's website"
most likely soI don't know

0
Collcroc123
Collcroc123

Reply 10 months ago

Hello. So what's happening is either you are typing the wrong number into your address bar, or your router's website is at a different location. If you know it's not the wrong number, search up the name of your router and how to access it's website / web interface.

0
Resudog35
Resudog35

Reply 18 days ago

What if you are tethering internet from a mobile device? what do i do in that case

1
Sunlord
Sunlord

2 months ago

If I try to join the server (io.netty.channel.AbstractChannel$AnnotatedConnectException: Connection refused: no further information: ) pops up
0
Fob1cSK
Fob1cSK

Reply 21 days ago

i have that too i dont now what to do

0
crazyrapbeats
crazyrapbeats

8 months ago on Step 2

forge-1.12.2-14.23.5.2838-universal.jar Doesnt open when i click it. I even tried using 7-zip but i couldnt find anything.

0
BraydenGames08
BraydenGames08

Reply 3 months ago

If on Linux do java -jar (jar path). Also Mac, I think. Also, make sure you have java installed.

0
ferariforests
ferariforests

Question 4 months ago

I cant open bat but when I open the .jar I can join but cant place down my lucky blocks

0
PeterF8
PeterF8

Question 5 months ago

These instructions appear to be for Windows PCs. I have a Mac. Please advise.

0
Lickymicky
Lickymicky

5 months ago

"Fatally missing registry entries" what does this mean I did everything step by step. Pls help asap.

0
redheadrooney
redheadrooney

Question 6 months ago

I cant seem to be able to join my server? It just says the connection timed out

0
DaveCron
DaveCron

6 months ago on Step 2

When i clicked the forge nothing happened but when i clicked the server file the eula popped up, a mod folder wasn't automatically created for me

1
eclapper04
eclapper04

Question 8 months ago

where is the servers mod folder

0
vWildcardv
vWildcardv

Question 1 year ago

I repeat this set of instructions many times and my server always ends up in vanilla even when all the mods are installed, everything else works except from the .bat file that opens and closes instantly