Setup Minecraft & McMyAdmin on Slackware 14.1

4 years ago

McMyAdmin is a web administration control panel that lets you easily install, configure and run a Minecraft server. This guide covers getting McMyAdmin up and running on Slackware Linux 14.1.

Create a minecraft User and Group

The first thing we will do is create a minecraft user and group. This will allow us to run the server without exposing unnecessary permissions(for example, the minecraft user won't be able to run rm -rf /):

mkdir /srv/minecraft
groupadd minecraft
useradd -d /srv/minecraft -g minecraft -s /bin/bash minecraft
chown minecraft:minecraft /srv/minecraft

Install Java

Minecraft depends on Java, which we can install using a SlackBuild. First, you'll need to grab the SlackBuild's archive:

mkdir ~/builds; cd ~/builds
wget http://slackbuilds.org/slackbuilds/14.1/development/jdk.tar.gz
tar xfz jdk.tar.gz
cd jdk

Next we'll need to download the source, but Oracle requires you to first agree to their download terms, so you will have to manually grab it from the Java Download Page. Once you've got it on your computer, you can use rsync or scp to copy it to your server:

# On your workstation
scp jdk-*.tar.gz me@myserver:~

Then we can compile and install the package:

# Back on your server
mv ~/jdk-*.tar.gz ~/builds/jdk/
cd ~/builds/jdk
./jdk.SlackBuild
installpkg /tmp/jdk-*_SBo.tgz

Finally we'll have to add the Java executable to our PATH:

ln -s /usr/lib64/java/jre/bin/java /usr/bin/java

Download Mono's Configuration Files

If you are compiling McMyAdmin for a 32-bit system, you need to have configuration files for Mono in /usr/local/etc. Run the following as the root user:

cd /usr/local
wget http://mcmyadmin.com/Downloads/etc.zip
unzip etc.zip; rm etc.zip

Download and Extract McMyAdmin2

Next we'll log in as the minecraft user we created earlier in order to install McMyAdmin:

su minecraft
cd /srv/minecraft
mkdir McMyAdmin
cd McMyAdmin
wget http://mcmyadmin.com/Downloads/MCMA2_glibc25.zip
unzip MCMA2_glibc25.zip
rm MCMA2_glibc25.zip
./MCMA2_Linux_x86_64 -setpass <password> -configonly
./MCMA2_Linux_x86_64

You should now be able to test out the web interface by visiting http://yourserversip:8080. The default username is admin.

Create a Startup Script

In order to get McMyAdmin2 to run as a daemon at boot, we can add the following rc.minecraft file to /etc/rc.d/:

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#!/usr/bin/bash
# /etc/rc.d/rc.minecraft
NAME='McMyAdmin'        # Server handle for the screen session
USER='minecraft'        # User that this will be running under.
DIR='/srv/minecraft/McMyAdmin'
MCPID="$DIR/minecraft_server.pid"
PWD=`pwd`
CMD="/usr/bin/screen -S $NAME -A -d -m ./MCMA2_Linux_x86_64"
RETVAL=0

service_start() {
if [ -f /var/run/$NAME.pid ]; then
    if [ "$(ps -p `cat /var/run/$NAME.pid` | wc -l)" -gt 1 ]; then
        echo -e "Cannot start $NAME.  Server is already running."
    else
        rm -rf /var/run/$NAME.pid
        service_start
    fi
else
    cd $DIR
    su $USER -c "$CMD"
    cd $PWD
    sleep 1
    ps -ef | grep SCREEN | grep "$NAME" | grep -v grep | awk '{ print $2}' > /var/run/$NAME.pid
    echo "$NAME started."
fi
}

service_stop() {
if [ -f $MCPID ]; then
    echo "Stopping Minecraft server."
    kill `cat $MCPID`
    rm -rf $MCPID
    echo "Minecraft server stopped."
else
    echo "Minecraft server not running."
fi
if [ -f /var/run/$NAME.pid ]; then
    echo "Stopping $NAME."
    kill `cat /var/run/$NAME.pid`
    rm -rf /var/run/$NAME.pid
    echo "$NAME stopped."
    else
    echo -e "Cannot stop $NAME.  Server is not running."
fi
}

case "$1" in
'start')
    service_start
    ;;
'stop')
    service_stop
    ;;
'restart')
    service_stop
    sleep 5
    service_start
    ;;
*)
    echo "Usage $0 start|stop|restart"
    esac

This script launches the web server in a screen session, so make sure you have it installed:

slackpkg install screen

Make the script executable, then edit rc.local and rc.local_shutdown so that the server is started/stopped at boot/shutdown:

chmod +x /etc/rc.d/rc.minecraft

# /etc/rc.d/rc.local
if [ -x /etc/rc.d/rc.minecraft ]; then
    /etc/rc.d/rc.minecraft start
fi

# /etc/rc.d/rc.local_shutdown
if [ -x /etc/rc.d/rc.minecraft ]; then
    /etc/rc.d/rc.minecraft stop
fi

Create Apache Proxy

We can use apache to make a proxy from port 80 to port 8080 so that we can access McMyAdmin from http://minecraft.yourserver.com instead of http://yourserver.com:8080.

First start off by installing and enabling httpd:

slackpkg install httpd
chmod +x /etc/rc.d/rc.httpd

Then edit /etc/httpd/httpd.conf, adding a new virtual host:

<VirtualHost *:80>
    ServerName minecraft.yourserver.com
    ProxyRequests Off
    ProxyPreserveHost On
    <Proxy *>
        Order allow,deny
        Allow from all
    </Proxy>
    ProxyPass / http://localhost:8080/
    ProxyPassReverse / http://localhost:8080/
</VirtualHost>

Install and Start the Minecraft Server

Now that McMyAdmin is setup, we can easily install the Minecraft server. Head to http://minecraft.yourserver.com and login with the username admin and the password you used when setting up McMyAdmin. Then head to Configuration -> Server Settings -> Server Type, select the server type you want and press Install.

Comments

Sergey 3 years, 4 months ago

./MCMA2_Linux_x86_64 -setpass admin -configonly
bash: ./MCMA2_Linux_x86_64: cannot execute binary file
LOL

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Current rating: 5

SleepAnarchy 3 years, 4 months ago

./MCMA2_Linux_x86_64 -setpass admin -configonly
bash: ./MCMA2_Linux_x86_64: cannot execute binary file
LOL


This usually means you're trying to run a 64-bit executable on a non-64-bit OS.

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