Perfect!  These are great.  I'm also finding/downloading a bunch of related
different scripts, etc. right now.  I'm sure one of these suggestions or a
combination with some scripting will do the trick.

Thanks for digging through the archives!  *slaps self for not thinking of
that*

Curtis.

-----Original Message-----
From: Jesse Kline [mailto:[EMAIL PROTECTED]]
Sent: Tuesday, February 11, 2003 12:39 PM
To: CLUG TALK
Subject: RE: (clug-talk) Dynamic DNS help?


On Tue, 2003-02-11 at 10:47, Curtis Sloan wrote:

> Thus I poked around dhcpcd to see if it would let me know when it
> makes/receives a change in address (dhcpcd as an example, other DHCP
clients
> exist).  If anyone knows a better tool/way, I'd love to hear it.

Looking through my own personal archive I found some messages from back
in November when I was complaining that I couldn't ssh into my box
because my IP address had changed. Here are the responses that I got:
Kevin Anderson wrote:
"Create a cronjob that:

writes your IP address to a file called current every hour.
Compare the contents of current with the contends of old.
if they are different, then mail [EMAIL PROTECTED] < current
    copy current over old
end

Then create the original old file for yourself.

Depending on how much you value SSH access, have it check hourly.

Kev."
This sounds like a good idea. I'm not quite sure how to implement this,
but if the router has the public IP address then the cronjob could run
ifconfig and pull the IP, then it shouldn't be too hard to compare two
IP addresses and take action if they are different. I also got this
response from Richi Plana:
"Or, if you're using dhclient, modify the /sbin/dhclient-script script.
There's a section there that actually handles a change in IP address.
Just email the contents of $new_ip_address to your external mail
account."
This one may relate more directly to what you are trying to do.

I hope this helps,

Jesse

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