Re: [LUG] Dynamic DNS clients?

[Peter Walker <peter.walker@xxxxxxxxxxxxxxx>]

Grant Sewell wrote:

> Cheers Pete.
>
> Yep, there is indeed a ddclient.cache file in /etc/ddclient, and it does show the IP 
> address that was correct last time it was run (I have since disabled it in cron).  
> Tried it in debug mode.  Here's the output:
>
> # ddclient -daemon=0 -syslog -verbose -debug retry
> === opt ====
>
> DEBUG:    get_ip: using web, checkip.dyndns.org/ reports xx.xxx.xx.xxx
> SUCCESS:  thymox.dyndns.org: skipped: IP address was already set to xx.xxx.xx.xxx.
> Can't exec "sendmail": No such file or directory at /usr/sbin/ddclient line 1210.
> ddclient: cannot execute command | sendmail -oi root.
>
>  
Grant,

From the debug output I would have said it was running OK, ie. not 
updating if the IP doesn't change.

> Now, I got myself unblocked, but I'm pretty certain that if I uncomment the line(s) 
> in my crontab entry then I'll get blocked again quickly.  Here's the relevant 
> section of my crontab:
>
> ######################################################################
> ## ddclient is an IP address updater for www.dyndns.org
> ## $Header: /cvsroot/ddclient/ddclient/sample-etc_cron.d_ddclient,v 1.2 2004/12/03 
> 07:30:44 wimpunk Exp $
> ######################################################################
> ## minute         0-59
> ## hour           0-23
> ## day of month   1-31
> ## month          1-12 (or names, see below)
> ## day of week    0-7 (0 or 7 is Sun, or use names)
> ######################################################################
> ## force an update twice a month (only if you are not using daemon-mode)
> ##
> #30 23 1,15 * * root    /usr/sbin/ddclient -daemon=0 -syslog -quiet -force
> ##
> ######################################################################
> ## foce an update every hour just to make sure!
> ## 0 0  * *     root    /usr/sbin/ddclient -daemon=0 -syslog -quiet -force
> ######################################################################
> ## retry failed updates every hour (only if you are not using daemon-mode)
> ##
> #0 * * * *      root    /usr/sbin/ddclient -daemon=0 -syslog -quiet retry
>
> I had both of them uncommented.  I am not using it in daemon mode because there's 
> little point... my IPCop box cannot detect on it's own when the IP changes, hence I 
> am using ddclient.
>
>  

Which were the lines you were using? Not the force update every hour?
I run in daemon mode just with default options with no problems but I 
don't see why the cron version doesn't work. Can you try reenabling the 
crons with -verbose option to see what it is doing.

Cheers,

Pete

> Cheers.
>
> Grant.
>  


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