Linux init script to start server on boot

[m0-]

Thanks Arujei, if users want to know how to protect this as well, here it is, copy everything Arujei updated:

Since it isn't a great idea to run this script as root, specifying which user to update it would be a better and ideal way to do this. To run this script in a chrooted environment, one can do the following:

So we have to keep in mind that a server might have multiple users, so I said user "tf2dev" owns the server files.

So in the sudoers file
One thing to change is to add an item to the sudoers file

Code:

sudo visudo /etc/sudoers

Add this to the end:

Code:

%tf2dev  ALL=(tf2dev) NOPASSWD: /usr/local/games/tf2dev/

That says, any person in group "tf2dev" can run any script inside "/usr/local/games/tf2dev/" with the user "tf2dev" of course with no password.

That will restrict only users in tf2dev group to execute anything in that directory.

Then you will create a tunnel script so that you can run that file with sudo tf2dev

Code:

#! /bin/sh
sudo -u tf2dev /usr/local/games/tf2dev/server-launch $@

Server-launch is the original script.

Now inside the current (original) script, only one thing needs to be modified... would be this area:

Find this:

Code:

# Screen command
CURRENT_USER=$(/usr/bin/whoami)
if [ "$CURRENT_USER" = "$USER" ]; then
    INTERFACE="/usr/bin/screen -A -m -d -S $NAME"
  else
    INTERFACE="sudo -u $USER /usr/bin/screen -A -m -d -S $NAME"
fi

Replace with this:

Code:

INTERFACE="/usr/bin/screen -A -m -d -S $NAME"

# Screen command
CURRENT_USER=$(/usr/bin/whoami)

if [ "$CURRENT_USER" != "$USER" ]; then
    echo "$TITLE cannot run on user ($CURRENT_USER)";
    exit
fi

That will force the user to run under the script under $USER. So now anyone with tf2dev as their group could start, run, and execute it.

Now the question would be, how would we allow different users to screen into that server?