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Thread: tigervnc server setup

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  1. #1
    Join Date
    Nov 2011
    Beans
    1

    tigervnc server setup

    Hello everyone,

    I had some problems setting up tigervnc on Ubuntu. I ended up copying the way centos does the tigervnc configuration and writing my own init script.

    1. First download the tigervnc .deb for your architecture from http://winswitch.org/dists/

    2. Next create /etc/vncservers (The configuration file for tigervnc) You will add a display number/username for each user you want to be able to connect. I added multiple for the same user so that I could connect with different screen geometries.

    Code:
    # The VNCSERVERS variable is a list of display:user pairs.
    #
    # Uncomment the lines below to start a VNC server on display :2
    # 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, you should
    # limit connections to the local host and then tunnel from
    # the machine you want to view VNC on (host A) to the machine
    # whose VNC output you want to view (host B)
    #
    # [user@hostA ~]$ ssh -v -C -L 590N:localhost:590M hostB
    #
    # this will open a connection on port 590N of your hostA to hostB's port 590M
    # (in fact, it ssh-connects to hostB and then connects to localhost (on hostB).
    # See the ssh man page for details on port forwarding)
    #
    # You can then point a VNC client on hostA at vncdisplay N of localhost and with
    # the help of ssh, you end up seeing what hostB makes available on port 590M
    
    # Use "-nolisten tcp" to prevent X connections to your VNC server via TCP.
    #
    
    # Use "-localhost" to prevent remote VNC clients connecting except when
    # doing so through a secure tunnel.  See the "-via" option in the
    # `man vncviewer' manual page.
    
    VNCSERVERS="1:user1 2:user1 3:user2"
    VNCSERVERARGS[1]="-geometry 800x600"
    VNCSERVERARGS[2]="-geometry 1366x768"
    VNCSERVERARGS[3]="-geometry 1366x768"
    3. Create the init script /etc/init.d/vncservers (I am open to suggestions to make this better).

    Code:
    #!/bin/bash
    ### BEGIN INIT INFO
    # Provides:
    # Required-Start:
    # Required-Stop:
    # Default-Start:5
    # Default-Stop:0 1 2 3 4 6
    # Short-Description: runs vnc servers
    ### END INIT INFO 
    PATH=/sbin:/bin:/usr/bin
    
    . /lib/lsb/init-functions
    
    . /etc/vncservers
    
    start_vnc_servers() 
    {
            echo "Starting ..."
    
            for server in $VNCSERVERS
            do
                    set -- `echo $server | /usr/bin/tr ':' ' '`
                    display=$1
                    usern=$2
    
                    echo "vncserver $server"
                    echo "$usern \"vncserver :$display ${VNCSERVERARGS[$display]}\""
                    su $usern -c "vncserver :$display ${VNCSERVERARGS[$display]}"
            done
    }
    
    stop_vnc_servers()
    {
            echo "killing ..."
    
            for server in $VNCSERVERS
            do
                    set -- `echo $server | /usr/bin/tr ':' ' '`
                    display=$1
                    usern=$2
    
                    export HOME=/home/$2
    
                    echo "vncserver $server"
                    echo "vncserver -kill $display"
                    vncserver -kill :$display
            done
    }
    
    case "$1" in
      start)
            start_vnc_servers
            exit 0
            ;;
      restart)
            stop_vnc_servers
            start_vnc_servers
            exit 0
            ;;
      stop)
            stop_vnc_servers
            exit 0
            ;;
      *)
            echo "Usage: $0 start|stop" >&2
            exit 1
            ;;
    esac
    3.Finally run:
    Code:
    update-rc.d vncservers enable
    service vncservers start
    Hope it works for you too.

  2. #2
    Join Date
    Aug 2013
    Beans
    1

    Re: tigervnc server setup

    in the step 3 you missed 2 commads


    Code:
    chmod +x /etc/init.d/vncservers
    update-rc.d -f vncservers defaults
    update-rc.d vncservers enable
    service vncservers start
    first one makes your script executable
    second creates all links otherwise I was getting errors

    Code:
    root@NAS# update-rc.d vncservers enable
    update-rc.d: warning: vncservers start runlevel arguments (none) do not match LSB Default-Start values (5)
    update-rc.d: warning: vncservers stop runlevel arguments (none) do not match LSB Default-Stop values (0 1 2 3 4 6)
     System start/stop links for /etc/init.d/vncservers do not exist.
    after doing this Iḿ still getting warnings. How to fix them?

    Code:
    root@NAS# update-rc.d vncservers enable
    update-rc.d: warning: vncservers start runlevel arguments (none) do not match LSB Default-Start values (5)
    update-rc.d: warning: vncservers stop runlevel arguments (none) do not match LSB Default-Stop values (0 1 2 3 4 6)
     Enabling system startup links for /etc/init.d/vncservers ...
     Removing any system startup links for /etc/init.d/vncservers ...
       /etc/rc0.d/K20vncservers
       /etc/rc1.d/K20vncservers
       /etc/rc2.d/S20vncservers
       /etc/rc3.d/S20vncservers
       /etc/rc4.d/S20vncservers
       /etc/rc5.d/S20vncservers
       /etc/rc6.d/K20vncservers
     Adding system startup for /etc/init.d/vncservers ...
       /etc/rc0.d/K20vncservers -> ../init.d/vncservers
       /etc/rc1.d/K20vncservers -> ../init.d/vncservers
       /etc/rc6.d/K20vncservers -> ../init.d/vncservers
       /etc/rc2.d/S20vncservers -> ../init.d/vncservers
       /etc/rc3.d/S20vncservers -> ../init.d/vncservers
       /etc/rc4.d/S20vncservers -> ../init.d/vncservers
       /etc/rc5.d/S20vncservers -> ../init.d/vncservers

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