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Thread: Startup script for VNC servers on Ubuntu

  1. #1
    Join Date
    May 2008
    Beans
    26

    Startup script for VNC servers on Ubuntu

    Just worked on an initscript for VNC servers.

    Put this one in /etc/init.d, name it vncservers and do a chmod +x /etc/init.d/vncservers


    Code:
    #!/bin/bash
    
    # Scripted by <snip>
    
    # chkconfig: 2345 91 35
    # description: Starts and stops vncserver. \
    # Used to provide remote X administration services.
    
    ### BEGIN INIT INFO
    # Provides: vncservers
    # Default-Start: 2 3 4 5
    # Default-Stop: 0 1 6
    # Required-Start: networking
    # Required-Stop: networking
    # Short-Description: Starts and stops vncserver
    # Description: Used to provide remote X administration services.
    ### END INIT INFO
    
    # Source function library.
    
    . /lib/lsb/init-functions
    
    VNCSERVERS=""
    
    [ -f /etc/default/vncservers ] && . /etc/default/vncservers || exit 0
    
    start() {
    
        ulimit -S -c 0 >/dev/null 2>&1
    
        RETVAL=0
    
        for display in ${VNCSERVERS}; do
    
        eval cd ~${display##*:}
    
        if [ -e ".vnc/passwd" ]; then
    
            log_begin_msg "Starting VNC Server for user ${display##*:}:"
    
            unset BASH_ENV ENV
    
            su ${display##*:} -c "cd ~${display##*:} && vncserver :${display%%:*}"
    
            RETVAL="$?"
    
            if [ "$RETVAL" -ne 0 ]; then
    
            log_end_msg 1
        
            break
    
            else
    
            log_end_msg 0
    
            fi
    
        else
    
            log_begin_msg "Not starting VNC Server for user ${display##*:}.\n   File \"~${display##*:}/.vnc/passwd\" not found.\n   Create a password file for the VNC server with vncpasswd"
    
            log_end_msg 1
    
        fi
    
        done
    
        [ "$RETVAL" -eq 0 ] && touch "/var/lock/vncserver"
    
    }
    
    stop() {
    
        unset BASH_ENV ENV
    
        for display in ${VNCSERVERS}; do
    
        log_begin_msg "Shutting down VNC Server for user ${display##*:}: "
    
        su ${display##*:} -c "vncserver -kill :${display%%:*}" >/dev/null 2>&1
    
        RETVAL="$?"
    
        [ "$RETVAL" -eq 0 ] && log_end_msg 0 || log_end_msg 1
    
        done
    
        [ -f "/var/lock/vncserver" ] && rm -f "/var/lock/vncserver"
    
    }
    
    case "$1" in
    
        start)        start
                ;;
    
        stop)        stop
                ;;
    
        restart|reload)    stop
                start
                ;;
    
        *)            echo $"Usage: $0 {start|stop|restart}"
                exit 1
                ;;
    
    esac
    
    exit 0
    Put this next one in /etc/default and name it vncservers. Edit to your likings.

    Code:
    # The VNCSERVERS variable is a list of display:user pairs.
    #
    # Uncomment the line below to start a VNC server on display :1
    # as my 'myusername' (adjust this to your own). You will also
    # need to set a VNC password; run 'man vncpasswd' to see how
    # to do that.
    #
    # DO NOT RUN THIS SERVICE if your local area network is
    # untrusted! For a secure way of using VNC, see
    # <URL:http://www.uk.research.att.com/vnc/sshvnc.html>.
    
    VNCSERVERS="1:ubuntu 2:joe"
    
    # ubuntu's VNC options
    VNCSERVERARGS[1]="-geometry 1024x768"
    
    # joe's VNC options
    VNCSERVERARGS[2]="-geometry 1280x1024"
    Have fun.

    = = = = =
    Comment from alexander-stohr 2013-12-05, changes needed:

    Code:
    su ${display##*:} -c "cd ~${display##*:} && vncserver :${display%%:*} ${VNCSERVERARGS[${display%%:*}]}"
    post configuration:
    Code:
    update-rc.d vncservers defaults
    Last edited by Toz; December 5th, 2013 at 09:43 PM. Reason: Correction

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