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How do I port forward correctly?

Hey guys I bought a VPS running CentOs 6.2 and I'm trying to set up a minecraft server which uses port 25565 How do I do that?

Also I get this when I start up my sever
http://pastebin.com/g05K13NF

Thanks all! I hope to see you all soon and hopefully I'll be able to help people :)

BMX

Hi,

it looks like it may be problem with your java installation. Are you using a "recommended" java version.

I've had success with openjdk 6. See:

http://www.linuxquestions.org/questi...ml#post4737294

I also notice that the jar file you are using does not appear to be the standard minecraft_server.jar

Finally, one other thing is that you shouldn't really be doing this as root.

Evo2.

Hi,

I just realised that the output you posted suggests that there may already be something attached to that port.
Can you confirm that no other mincraft instance (or anything else) is running on port 25565? Ie is there any output from the following command?

Code:

lsof -i :25565

Evo2.

Quote:

Originally Posted by evo2 (Post 4771160)

I'm not to sure what version I watched a tutorial and I downloaded java through the command line

I'll check that out

It's a craftbukkit jar (Server mod)

I couldn't figure out how to give my "minecraft" user the correct permissions

Thanks for the reply!
BMX

Quote:

Originally Posted by evo2 (Post 4771168)

Code:

lsof -i :25565

Evo2.

No output :)

Bump, I need help badly :( Sorry if bumping is against the rules I haven't taken a look at those yet

~BMX

Hi,

to help you we need information.

For example, what java version are you using? Eg output of

Code:

readlink -f $(which java)

How did you install and how?

Does a standard minecraft sever work?

Regarding running as root: what permissions problems did you have running as a non-root user? Ie what did you actually do, and what errors were reported.

Evo2.

Quote:

Originally Posted by evo2 (Post 4771868)

Hi,

to help you we need information.

For example, what java version are you using? Eg output of

Code:

readlink -f $(which java)

http://www.youtube.com/watch?v=JYodi9Qzf0U
I used that video, it installed java with it,
the readlink didn't work
I installed it through the commandline

Haven't tried, I purchased the VPS 2 days ago :/

It didn't have permissions to execute an install.sh file

Thanks!
BMX

Hi,

Quote:

Originally Posted by BMX_ATVMAN14 (Post 4771897)

http://www.youtube.com/watch?v=JYodi9Qzf0U
I used that video, it installed java with it,

Sorry, I don't do youtube.

Quote:

the readlink didn't work

It is of almost not use to say "didn't work" or similar. Please report the error messages. Ie cut and paste what is in the terminal so that we have a chance of working out what is going on.

Quote:

I installed it through the commandline

Again, that doesn't tell me much.

Quote:

Haven't tried, I purchased the VPS 2 days ago :/

Quote:

It didn't have permissions to execute an install.sh file

Then change the permissions on the file.

To try to isolate the problem I think you should start by trying to run the standard minecraft server.
Eg. run the following commands to download, and then run it.

Code:

wget https://s3.amazonaws.com/MinecraftDownload/launcher/minecraft_server.jar

java -Xms1G -Xmx1G -jar minecraft_server.jar nogui

Regards,

Evo2.

PS. I can't stress enough how important it is to post the exact commands you run and the error messages reported, preferably cut and pasted from the terminal.

Quote:

Originally Posted by evo2 (Post 4771990)

Hi,

Sorry, I don't do youtube.

It is of almost not use to say "didn't work" or similar. Please report the error messages. Ie cut and paste what is in the terminal so that we have a chance of working out what is going on.

Again, that doesn't tell me much.

Yum install java

Quote:

Originally Posted by evo2 (Post 4771990)

Code:

wget https://s3.amazonaws.com/MinecraftDownload/launcher/minecraft_server.jar

java -Xms1G -Xmx1G -jar minecraft_server.jar nogui

Regards,

Evo2.

PS. I can't stress enough how important it is to post the exact commands you run and the error messages reported, preferably cut and pasted from the terminal.

Ok thanks! I'll give it a try and post in a little bit :)

Thanks,
BMX

Results

Code:

2012-09-04 22:09:26 [INFO] Starting Minecraft server on *:25565

java.lang.NoSuchMethodError: method java.net.ServerSocket.setPerformancePreferences with signature (III)V was not found.

  at fy.<init>(SourceFile:31)

  at fx.<init>(SourceFile:16)

  at ft.b(SourceFile:109)

  at net.minecraft.server.MinecraftServer.run(SourceFile:291)

  at ep.run(SourceFile:539)

2012-09-04 22:09:26 [SEVERE] Encountered an unexpected exception NoSuchMethodError

java.lang.NoSuchMethodError: method java.net.ServerSocket.setPerformancePreferences with signature (III)V was not found.

  at fy.<init>(SourceFile:31)

  at fx.<init>(SourceFile:16)

  at ft.b(SourceFile:109)

  at net.minecraft.server.MinecraftServer.run(SourceFile:291)

  at ep.run(SourceFile:539)

2012-09-04 22:09:26 [SEVERE] This crash report has been saved to: /root/./crash-reports/crash-2012-09-04_22.09.26-server.txt

Hi,

I'm assuming the output you posted is from the standard minecraft_sever.jar. If so, this really does look like a java problem, not a problem with the server app itself.

I note that you are running this on CentOS 6.2, so I just tried it on an SL 6.2 machine and had no problems. Here is the output for my session:

Code:

% readlink -f $(which java)

/usr/lib/jvm/java-1.6.0-openjdk-1.6.0.0.x86_64/jre/bin/java

% lsb_release --all

LSB Version:        :core-4.0-amd64:core-4.0-noarch:graphics-4.0-amd64:graphics-4.0-noarch:printing-4.0-amd64:printing-4.0-noarch

Distributor ID:        Scientific

Description:        Scientific Linux release 6.2 (Carbon)

Release:        6.2

Codename:        Carbon

% wget https://s3.amazonaws.com/MinecraftDownload/launcher/minecraft_server.jar

Resolving s3.amazonaws.com (s3.amazonaws.com)... 207.171.185.200

Connecting to s3.amazonaws.com (s3.amazonaws.com)|207.171.185.200|:443... connected.

HTTP request sent, awaiting response... 200 OK

Length: 1801710 (1.7M) [application/octet-stream]

Saving to: ‘minecraft_server.jar’



100%[=========================================>] 1,801,710    630KB/s  in 2.8s  



2012-09-05 11:44:08 (630 KB/s) - ‘minecraft_server.jar’ saved [1801710/1801710]

% java -Xms1G -Xmx1G -jar minecraft_server.jar nogui

195 recipes

27 achievements

2012-09-05 11:47:46 [INFO] Starting minecraft server version 1.3.2

2012-09-05 11:47:46 [INFO] Loading properties

2012-09-05 11:47:46 [WARNING] server.properties does not exist

2012-09-05 11:47:46 [INFO] Generating new properties file

2012-09-05 11:47:46 [INFO] Default game type: SURVIVAL

2012-09-05 11:47:46 [INFO] Generating keypair

2012-09-05 11:47:47 [INFO] Starting Minecraft server on *:25565

2012-09-05 11:47:47 [WARNING] Failed to load operators list: java.io.FileNotFoundException: ./ops.txt (No such file or directory)

2012-09-05 11:47:47 [WARNING] Failed to load white-list: java.io.FileNotFoundException: ./white-list.txt (No such file or directory)

2012-09-05 11:47:47 [INFO] Preparing level "world"

2012-09-05 11:47:48 [INFO] Preparing start region for level 0

2012-09-05 11:47:49 [INFO] Preparing spawn area: 0%

2012-09-05 11:47:50 [INFO] Preparing spawn area: 4%

2012-09-05 11:47:51 [INFO] Preparing spawn area: 4%

2012-09-05 11:47:52 [INFO] Preparing spawn area: 8%

2012-09-05 11:47:53 [INFO] Preparing spawn area: 16%

2012-09-05 11:47:54 [INFO] Preparing spawn area: 24%

2012-09-05 11:47:55 [INFO] Preparing spawn area: 28%

2012-09-05 11:47:56 [INFO] Preparing spawn area: 40%

2012-09-05 11:47:57 [INFO] Preparing spawn area: 52%

2012-09-05 11:47:58 [INFO] Preparing spawn area: 65%

2012-09-05 11:47:59 [INFO] Preparing spawn area: 73%

2012-09-05 11:48:00 [INFO] Preparing spawn area: 81%

2012-09-05 11:48:01 [INFO] Preparing spawn area: 89%

2012-09-05 11:48:02 [INFO] Preparing spawn area: 97%

2012-09-05 11:48:02 [INFO] Done (15.080s)! For help, type "help" or "?"

So, I need to know what version of java you are using. So please try to run the "readlink" command exactly as I did above and post the output (even if it "doesn't work"). The other useful thing to do would be to post the log file that is referenced in the last line of your post.

Evo2.

Quote:

Originally Posted by evo2 (Post 4772849)

Code:

% readlink -f $(which java)

/usr/lib/jvm/java-1.6.0-openjdk-1.6.0.0.x86_64/jre/bin/java

% lsb_release --all

LSB Version:        :core-4.0-amd64:core-4.0-noarch:graphics-4.0-amd64:graphics-4.0-noarch:printing-4.0-amd64:printing-4.0-noarch

Distributor ID:        Scientific

Description:        Scientific Linux release 6.2 (Carbon)

Release:        6.2

Codename:        Carbon

% wget https://s3.amazonaws.com/MinecraftDownload/launcher/minecraft_server.jar

Resolving s3.amazonaws.com (s3.amazonaws.com)... 207.171.185.200

Connecting to s3.amazonaws.com (s3.amazonaws.com)|207.171.185.200|:443... connected.

HTTP request sent, awaiting response... 200 OK

Length: 1801710 (1.7M) [application/octet-stream]

Saving to: ‘minecraft_server.jar’



100%[=========================================>] 1,801,710    630KB/s  in 2.8s  



2012-09-05 11:44:08 (630 KB/s) - ‘minecraft_server.jar’ saved [1801710/1801710]

% java -Xms1G -Xmx1G -jar minecraft_server.jar nogui

195 recipes

27 achievements

2012-09-05 11:47:46 [INFO] Starting minecraft server version 1.3.2

2012-09-05 11:47:46 [INFO] Loading properties

2012-09-05 11:47:46 [WARNING] server.properties does not exist

2012-09-05 11:47:46 [INFO] Generating new properties file

2012-09-05 11:47:46 [INFO] Default game type: SURVIVAL

2012-09-05 11:47:46 [INFO] Generating keypair

2012-09-05 11:47:47 [INFO] Starting Minecraft server on *:25565

2012-09-05 11:47:47 [WARNING] Failed to load operators list: java.io.FileNotFoundException: ./ops.txt (No such file or directory)

2012-09-05 11:47:47 [WARNING] Failed to load white-list: java.io.FileNotFoundException: ./white-list.txt (No such file or directory)

2012-09-05 11:47:47 [INFO] Preparing level "world"

2012-09-05 11:47:48 [INFO] Preparing start region for level 0

2012-09-05 11:47:49 [INFO] Preparing spawn area: 0%

2012-09-05 11:47:50 [INFO] Preparing spawn area: 4%

2012-09-05 11:47:51 [INFO] Preparing spawn area: 4%

2012-09-05 11:47:52 [INFO] Preparing spawn area: 8%

2012-09-05 11:47:53 [INFO] Preparing spawn area: 16%

2012-09-05 11:47:54 [INFO] Preparing spawn area: 24%

2012-09-05 11:47:55 [INFO] Preparing spawn area: 28%

2012-09-05 11:47:56 [INFO] Preparing spawn area: 40%

2012-09-05 11:47:57 [INFO] Preparing spawn area: 52%

2012-09-05 11:47:58 [INFO] Preparing spawn area: 65%

2012-09-05 11:47:59 [INFO] Preparing spawn area: 73%

2012-09-05 11:48:00 [INFO] Preparing spawn area: 81%

2012-09-05 11:48:01 [INFO] Preparing spawn area: 89%

2012-09-05 11:48:02 [INFO] Preparing spawn area: 97%

2012-09-05 11:48:02 [INFO] Done (15.080s)! For help, type "help" or "?"

Thanks! And yes, it was a normal jar.

I tried the readlink command and got no feedback

Thanks!

BMX

HI,

Quote:

Originally Posted by BMX_ATVMAN14 (Post 4773493)

And yes, it was a normal jar.

Ok, good.

Quote:

I tried the readlink command and got no feedback

That's curious. Ok, please run the following commands and cut and paste from your terminal (both the output and the actual commands that you are running).

Code:

which java

ls -l $(which java)

rpm -qa |grep java

Evo2.

Quote:

Originally Posted by evo2 (Post 4773647)

HI,

Ok, good.

That's curious. Ok, please run the following commands and cut and paste from your terminal (both the output and the actual commands that you are running).

Code:

which java

ls -l $(which java)

rpm -qa |grep java

Evo2.

Will do!

Thanks!

Code:

login as: root

root@209.236.121.16's password:

Last login: Wed Sep  5 15:14:41 2012 from ------------

[root@metroville ~]# ping

Usage: ping [-LRUbdfnqrvVaA] [-c count] [-i interval] [-w deadline]

            [-p pattern] [-s packetsize] [-t ttl] [-I interface or address]

            [-M mtu discovery hint] [-S sndbuf]

            [ -T timestamp option ] [ -Q tos ] [hop1 ...] destination

[root@metroville ~]# which java

/usr/bin/java

[root@metroville ~]# ls -l $(which java)

lrwxrwxrwx 1 root root 22 Sep  2 00:53 /usr/bin/java -> /etc/alternatives/java

[root@metroville ~]# rpm -qa |grep java

java_cup-0.10k-5.el6.x86_64

java-1.5.0-gcj-1.5.0.0-29.1.el6.x86_64

[root@metroville ~]#

Edit

don't worry about the ping I was just playing :P