GNU/Linux Desktop Survival Guide by Graham Williams
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No-IP Manual Installation

If the no-ip or noip2 package is not available then download the noip2 client to run on your local machine. The following guides us through the steps for running noip2 on your local machine.

With appropraite setup this can run as a daemon and will forward your IP address to the DNS server to update your symbolic name for your host. The client can also automatically identify if your host is sitting behind a router and will do the right thing, by getting the IP address stored in the router (rather than the IP address of your host which is probably something like 192.168.0.2).

To get the client:

  $ wget http://www.no-ip.com/client/linux/noip-duc-linux.tar.gz
  $ tar xvf noip-duc-linux.tar.gz
  $ cd noip-2.1.9-1/
  $ make

To test things as a normal user, create a local configuration:

  $ ./noip2 -c CONFIG -C

We are asked to enter the no-ip username and password, and there is also an option to run a command each time it is successfully updated.

Then you can manually update the server with:

  $ ./noip2 -c CONFIG -i <ipaddress>

Then try it out (may take a little time to propagate for some hosts — my office machine takes up to 30 minutes but my home desktop is immediate):

  $ ping kayon.redirectme.net

It should get your home IP address.

Then you can set it up as a daemon as root, using the supplied Debian script to stop and start the daemon. As root, compile the client as above, then do an install:

  $ sudo make install

This will copy the noip executable to /ust/local/bin. That program is then run with the -C option, and creating a temporary configuration file. You will be asked to supply your No-IP username (the email address you supplied on signing up) and password. The default update interval is 30 minutes, but you can change it if you like (I use 5 minutes). The temporary configuration file is then copied to /usr/local/etc/no-ip2.conf.

You can now simply run noip2 as root, without arguments, and, as a daemon, it will update the server. With option -S all currently running daemons will be listed. To kill one of the daemons use the -K option.

To run the daemon automatically when the machine is booted place the following script into /etc/init.d/noip2:

#! /bin/sh
# /etc/init.d/noip2

# Supplied by no-ip.com
# Modified for Debian GNU/Linux by Eivind L. Rygge <eivind@rygge.org>
# Updated by David Courtney to not use pidfile 130130 for Debian 6.
# Updated again by David Courtney to "LSBize" the script for Debian 7.

### BEGIN INIT INFO
# Provides:     noip2
# Required-Start: networking
# Required-Stop:
# Should-Start:
# Should-Stop:
# Default-Start: 2 3 4 5
# Default-Stop: 0 1 6
# Short-Description: Start noip2 at boot time
# Description: Start noip2 at boot time
### END INIT INFO

# . /etc/rc.d/init.d/functions  # uncomment/modify for your killproc

DAEMON=/usr/local/bin/noip2
NAME=noip2

test -x $DAEMON || exit 0

case "$1" in
    start)
    echo -n "Starting dynamic address update: "
    start-stop-daemon --start --exec $DAEMON
    echo "noip2."
    ;;
    stop)
    echo -n "Shutting down dynamic address update:"
    start-stop-daemon --stop --oknodo --retry 30 --exec $DAEMON
    echo "noip2."
    ;;

    restart)
    echo -n "Restarting dynamic address update: "
    start-stop-daemon --stop --oknodo --retry 30 --exec $DAEMON
    start-stop-daemon --start --exec $DAEMON
    echo "noip2."
    ;;

    *)
    echo "Usage: $0 {start|stop|restart}"
    exit 1
esac
exit 0

Make sure it is executable:

  $ sudo chmod a+rx /etc/init.d/noip2

Now you can start the daemon and check that it is running:

  $ wajig start noip2
  $ sudo noip2 -S
  1 noip2 process active. 

  Process 7065, started as noip2
  Using configuration from /usr/local/etc/no-ip2.conf
  Last IP Address set 230.127.57.182
  Account kayon.toga@togaware.com
  configured for:
          group ktware
  Updating every 30 minutes via /dev/eth0 with NAT enabled.

On Debian 6, to have the daemon start and stop at boot and shutdown time create the following symbolic links:

  $ cd /etc/rc2.d
  $ sudo ln -s ../init.d/noip2 S95noip2
  $ cd /etc/rc0.d
  $ sudo ln -s ../init.d/noip2 K05noip2

On Debian 7, run the following command instead:

  $ sudo update-rc.d -n noip2 defaults

The -n switch causes the actions to be displayed but not executed so we can see what update-rc.d wants to do, without actually doing it. If you like what you see then we can do it for real:

  $ sudo update-rc.d noip2 defaults

Thanks to David Courtney for the information here (13 April 2014).