Ketting Launcher

Ketting Launcher is an all-in-one launcher for all Ketting versions. This can essentially be used as a server jar, but for all versions of Ketting.

How to use

Before running the launcher

• Make sure that you have Java 17 installed. You can download it here.
• Make sure you are in a clean directory, as the launcher will download all the files it needs to run in the current directory. Do not run the launcher jar in your downloads folder!

Running the launcher

1. Download the latest version of Ketting Launcher from the releases page.
2. Make a new folder and put the launcher in it.
3. Open a terminal of choice and run the jar with

   java -jar kettinglauncher-X.X.X.jar -minecraftVersion <version>

   (see launch arguments for more info)

Arguments

Note

These arguments are subject to change, and may not work in future versions. For a full list of arguments, run the launcher with -help

Argument	Description
-help	Shows the help menu
-noui	Disables the fancy UI
-nologo	Disables the big logo
-accepteula	Accepts the EULA automatically
-dau or -daus	Disables automatic server updates
-daul	Disables automatic launcher updates
-createLaunchScripts	Creates launch scripts to launch Ketting directly
-installOnly	Only installs the server and exits after
-minecraftVersion <version>	Sets the Minecraft version to use 1
-forgeVersion <version>	Sets the Forge version to use 1, 2
-kettingVersion <version>	Sets the Ketting version to use 1, 2

Unstable arguments:	Description
--launchTarget <target>	Sets the forge launch target, this should not be used unless you know what you're doing

All args above can also be set by setting environment variables or jvm Properties. Let x be an arbitrary argument from the above lists, with the character - removed (e.g. -dau becomes dau). The corresponding Environment Variable to that argument would be: kettinglauncher_ followed by x (e.g. kettinglauncher_dau in case of the earlier example). The corresponding jvm Property to that argument would be: kettinglauncher. followed by x (e.g. kettinglauncher.dau in case of the earlier example).

There is also the jvm Property kettinglauncher.debug. That cannot be set any other way, due to java limitations and how the launcher is laid out. We do not recommend activating that, since it activates a ton of extra information, that is most of the time useless.

What if my I don't know how / my hosting provider does not allow me to use arguments?

You can create a file called mcversion.txt in the same directory as the jar, and put the Minecraft version in there. This will be used as the Minecraft version and will take priority over the -minecraftVersion argument.

FAQ

Why is this launcher not on the official Ketting website?

This will be added in the future, when I have time to create a new website.

My server is not starting, what do I do?

Before you create an issue, check if you followed all steps in the how to use section. If you did, create an issue on the issue tracker.

I found a bug, what do I do?

Note: For any bugs not related to the launcher itself, please create an issue on the respective repository. E.g. Ketting-1-20-x.
Make sure that the bug is not already reported on the issue tracker. If it is not, create a new issue with as much information as possible.

I have a question that is not listed here, what do I do?

Feel free to join our Discord server and ask your question there.

Footnotes

1. only if Ketting supports it ↩ ↩² ↩³

2. This argument will not update the Minecraft Version. If the current Server Minecraft Version is detected to be 1.20.1, but e.g. forgeVersion is set to 48.1.0, it won't update to 1.20.2. ↩ ↩²