Tutorials Linux DDNS Update Client ez-ipupdate

2010-01-31T16:34:38Z

Guybrush420: The pixi's interface is called rmnet0

This document describes a method to setup '''ez-ipupdate''' to automatically update a dynamic DNS hostname to your Palm Pre's WAN IP address living on ppp0. for updating your Pre's DNS information using a Dynamic DNS service. If your Dynamic DNS service only offers updating via URL, or your service is not supported here, you may want to check [[Tutorials_Linux_DDNS_Update_Client_wget]].

The benefit of the '''ez-ipupdate''' configuration on this page is that it only runs when the IP address changes on your Pre. This way it doesn't use any memory/CPU or other resources on an ongoing basis.

Every time your pre connects to the network, its IP address changes. If you want to access things on the Pre itself via the EVDO network, this is a pain since you have to look up the IP address each time. Dynamic DNS services allow you to have a stable name for the pre like: mypre.dyndns.org and each time the address changes on the Pre, the phone itself will update the IP address at dyndns.org so that your name always works.

== ez-ipupdate package in the Optware feed in Preware ==

ez-ipupdate has now been added to the Optware package feed in Preware. To configure it, just edit /opt/etc/ez-ipupdate.conf as detailed below, and everything else is automatic. You only need the service-type, user and host entries - the other configuration entries like interface, etc are handled automatically.

==Prerequisites.==
* This page assumes that you have just finished the procedure on the [[Portal:Accessing_Linux]] page, and are still logged in as root via telnet, novaterm, or novaproxy.
* You should also have gone through the next steps page.

==Create a Dynamic DNS Account at one of the following:==

* http://www.ez-ip.net
* http://www.justlinux.com
* http://www.dhs.org
* http://www.dyndns.org
* http://www.ods.org
* http://gnudip.cheapnet.net (GNUDip)
* http://www.dyn.ca (GNUDip)
* http://www.tzo.com
* http://www.easydns.com
* http://www.dyns.cx
* http://www.hn.org
* http://www.zoneedit.com

[[Tutorials_Linux_DDNS_Update_Client_wget|Update freedns.afraid.org and other URL-based update services]].

==Enabling write access to the file system==
mount -o remount,rw /

==Install ez-ipupdate==
/opt/bin/ipkg-opt install ez-ipupdate

===Configure ez-ipupdate.===
You will need to create a /opt/etc/ez-ipupdate.conf file that has the information you gathered when you created your DDNS account in step 1. Here is an example /opt/etc/ez-ipupdate.conf file to base your work off of
service-type=MY SERVICE PROVIDER
user=MYACCOUNT:MYPASSWORD
interface=ppp0
host=MY.HOST.NAME
cache-file=/opt/var/run/ez-ipupdate.cache
foreground
retrys=5

Note legal service-type values are:
ez-ip
pgpow
dhs
dyndns
dyndns-static
dyndns-custom
ods
tzo
easydns
easydns-partner
gnudip
justlinux
dyns
hn
zoneedit
heipv6tb

On the pixi, use interface=rmnet0 for file /opt/etc/ez-ipupdate.conf (instead of ppp0, as shown above). Also, make the following changes in /etc/event.d/optware-dropbear
/usr/sbin/iptables -D INPUT -i rmnet0 -p tcp --dport 222 -j ACCEPT || /bin/true
/usr/sbin/iptables -I INPUT -i rmnet0 -p tcp --dport 222 -j ACCEPT

===Create the directory /opt/var/run needed for software such as ez-ipupdate for it's cache and run file===
mkdir -p /opt/var/run

==6. Test your settings==
/opt/bin/ez-ipupdate -c /opt/etc/ez-ipupdate.conf
When this step completes successfully then we can make it automatic.

==Make this run whenever your ppp0 (EV-DO) IP address changes:==
You can do this by adding a script to /etc/ppp/ip-up.d called 09update-ddns. Here are the contents of that /etc/ppp/ip-up.d/09update-ddns:
#!/bin/sh
/opt/bin/ez-ipupdate -c /opt/etc/ez-ipupdate.conf -q > /dev/null 2>&1 || /bin/true

===Make this script executable===
chmod 755 /etc/ppp/ip-up.d/09update-ddns

==Remount the file system as readonly==
mount -o remount,ro /

For your terminal settings to work better [[Putty |you should look here - Putty settings for DynDNS]]

* Tutorial by dreadchicken.
* Verified to work as written by optik678, ultraBlack and hopspitfire.
* Simplification and more details by Dax Kelson.
* ez-ipupdate added to Preware by Rod Whitby.

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Tutorials Linux DDNS Update Client ez-ipupdate