yeah, I use ddclient with dyndns.org same deal, and it emails root, (or whomever roots alias is) with the details of the ip address whenever the machine reconnects, I run my mailserver at home like that.
works great, and I always have an email with the new IP in it. rgds Frank -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of David Guntner Sent: Thursday, 28 February 2002 7:18 AM To: [EMAIL PROTECTED] Subject: Re: [expert] BASH Scripts Tom Badran grabbed a keyboard and wrote: > > How can i use an if in a bash script so that it will only run commands if the > specified file is empty? > > Basically, ive set up a cache system by which the output of ifconfig is > stored in /var/cache/IP/1 > > Then, every minute my script is run. It first puts the output of ifconfig in > /var/cache/IP/2 and diff's it with 1 outputing that to a file 'diff'. I then > want to run a series of commands if the file diff is not empty. if [ -s diff ]; then {do your command or commands here} fi > What im trying to do is get an email sent to me every time the IP changes on > a specific machine, so i always have a record of it for logging in via ssh. > The specific connection is ppp0 which auto redials on disconnect. If there is > an easier way of doing this please share with me. Have you checked out the free DDNS service at no-ip.com? They have a Linux client that you can run when you connect, and then you can just ssh into yourmachine.no-ip.com instead of worrying about the current IP address. --Dave -- David Guntner GEnie: Just say NO! http://www.akaMail.com/pgpkey/davidg or key server for PGP Public key
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