How to free a port number

**Tyler Lusk** · September 10th, 2012

13:51:51 [INFO] Starting Minecraft server on *:25565
13:51:51 [WARNING] **** FAILED TO BIND TO PORT!
13:51:51 [WARNING] The exception was: java.net.BindException: Address already in use
13:51:51 [WARNING] Perhaps a server is already running on that port?

Trying to get a server going for my grandson to teach him how to use linux but I keep getting this error trying to load server. Command I'm using is, java -Xms1024M -Xmx1024M -jar craftbukkit.jar nogui

any suggestions?

Thanks, Tyler's Papa

**jerome1232** · September 10th, 2012

That's not port 25, that's port 25565.

You can see what is using that port with

Code:

sudo netstat -tlp | grep 25565

Are you positive that there isn't already an instance of minecraft running?

**Tyler Lusk** · September 10th, 2012

tcp6 0 0 [::]:25565 [::]:* LISTEN 3693/java

Yea looks like java is using it how do I kill it? I'm learning along with my Grandson... Thx!

**jerome1232** · September 10th, 2012

Sounds like you already have a minecraft server running (Java is what would show up if minecraft was using that port)

Have you tried connecting to it from another computer?

**coffeecat** · September 10th, 2012

Moved to own thread.

@Tyler Lusk, the thread you posted to had been dead for over 4 years. Please start your own threads. Thanks.

**ubudog** · September 10th, 2012

Run & post the output of:

Code:

ps ax | grep java

**Tyler Lusk** · September 10th, 2012

I got it...I just rebooted the system and it's working now...Thank you. Now I need to learn how to install bukkit commands...Oh Boy! Any Minecraft fans out there? I hope somebody created a GUI for all this stuff...wish me luck!

Tyler's Papa