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Old 10-11-2003, 08:46 AM   #1
LQ Newbie
Registered: Oct 2003
Location: Atlanta, GA
Distribution: Red Hat 9
Posts: 22

Rep: Reputation: 15
CRON and DNS updates


The Question: What is the best way to install and run an update client that will notify a site of any change to my dynamic ip address on my DSL connection?

I've got a new server running Red Hat Linux 7.3 (Valhalla)

It's a closed system I can only access via telnet.

I have run a ps -aux to see that there is no process CRON running.

I want (or think I want) CRON to help do the job of regularly checking my IP address and reporting it to a dynamic updating service: has several Linux/Unix update clients on their site and I admit I haven't a clue which one is likely the best.

My other systems are all Windows. I used to run DOS, of course, and ran OS/2 for years and years so I'm not exactly a computer novice. But I'm unfamiliar with Linux to the point I'm thinking of putting it on a partition on my hard drive just to learn the thing!

Thank you for any advice you can offer!

Last edited by thenebula; 10-11-2003 at 08:49 AM.
Old 10-13-2003, 06:21 AM   #2
LQ Newbie
Registered: Oct 2002
Location: MS
Distribution: Slackware 9.1 XFS
Posts: 27

Rep: Reputation: 15
There are daemons out on the net that you can install to do that, but if you want to use cron, I suggest that you learn how to use Netcat 'nc' and write your own script using that. Oh, and btw, if you are going to remotely admin. your box I suggest using SSH, and turning off telnet. Telnet is wide open for anyone to read your traffic.


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