chehongweo / lucianms

maplestory v83 private server

LucianMS

Now known as Chirithy!
Java 8 and above is required so long as the Nashorn Script Engine is available.
I'm look at you Java 11 (They deprecated the feature).

Starting the server

Understand the bound ports

This server emulator is required to run as two separate JVM processes.
One for the Login Server (default bound to port 8484) and one for the Channel Server (default bound to 7575 + i + (n * 100)) where i is the Channel ID and n is the World ID.
The default ports (8484 and 7575) can be configured via server-config.json but the channel port calculation remains the same.
Be sure to un-block the Login Server and Channel Server range of TCP ports from your in-bound firewall rules.

If using a Discord bot, the bound port is 8483 and should not be allowed through firewall.

All three of these processes a currently programmed to run on the same system as they connect and communicate via localized network connections and raw packet data (No packet encryption modifications are used whatsoever as data is transferred through the local network).

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Creating your .bat file

Your most basic command line with required arguments for starting a server JVM is as follows:

java -jar SERVER.jar -Dwzpath=wz -Dnashorn.args=--language=es6

• -jar SERVER.jar runs the JAR file as an executable file where SERVER.jar is to be replaced with the path to your compiled JAR file for your login and channel server
• -Dwzpath=wz creates a System property called wzpath and assigns the value wz
• -Dnashorn.args=--language=es6 creates a System property which enables some ES6 features in the JDK8+ script engine processor

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Utilizing the new encryption

Under your server-config.json properties, should the UseNewEncryption property be assigned to true, your game client localhost will need to update its IGCipher hash numbers.
In the IGCipher client functions, the number will need to be changed from F25350C6 to FF11252D. Note: These numbers are represented in the Big Endian format in the client, and Little Endian in the server.