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A Dynamic DNS service is provided by No-IP. After
signing up for the free service, perhaps with a hostname of
ktware.redirectme.net, you can install no-ip.
Previous to the no-ip
package becoming available in Debian
you would download the noip2 client that you run on your local
machine. The following refers to this approach for running no-ip.
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 https://www.no-ip.com/client/linux/noip-duc-linux.tar.gz
$ tar zxvf noip-duc-linux.tar.gz
$ cd noip-2.1.1/
$ make
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To test things as a normal user, create a local configuration:
Then you can manually update the server with:
$ ./noip2 -c CONFIG -i <ipaddress>
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Then try it out:
$ ping ktware.redirectme.net
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It should get your 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 thge client as
above, then do an install:
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 minute, but you can change it if you like. The configuration file
will be /usr/local/etc/no-ip2.conf
You can now simply run noip2 as root 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 <[email protected]>
# . /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 --pidfile /var/run/noip2.pid \
--make-pidfile --exec $DAEMON
echo "noip2."
;;
stop)
echo -n "Shutting down dynamic address update:"
start-stop-daemon --stop --pidfile /var/run/noip2.pid \
--oknodo --retry 30 --exec $DAEMON
echo "noip2."
;;
restart)
echo -n "Restarting dynamic address update: "
start-stop-daemon --stop --pidfile /var/run/noip2.pid \
--oknodo --retry 30 --exec $DAEMON
start-stop-daemon --start --pidfile /var/run/noip2.pid \
--exec $DAEMON
echo "noip2."
;;
*)
echo "Usage: $0 {start|stop|restart}"
exit 1
esac
exit 0
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Make sure it is executable:
# chmod a+rx /etc/init.d/noip2
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Now you can start the daemon and check that it is running:
$ wajig start
$ 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 [email protected]
configured for:
group ktware
Updating every 30 minutes via /dev/eth0 with NAT enabled.
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To have the daemon start and stop at boot and shutdown time create the
following symbolic links:
# cd /etc/rc2.d
# ln -s ../init.d/noip2 S95noip2
# cd /etc/rc0.d
# ln -s ../init.d/noip2 K05noip2
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