watchDhcp 1.0

watchDhcp is a simple script that lets you watch and react to a change in the system's IP address.

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LICENSE TYPE:
GPL (GNU General Public License) 
USER RATING:
UNRATED
  0.0/5
DEVELOPED BY:
Keith Resar
HOMEPAGE:
heavyk.org
CATEGORY:
ROOT \ System \ Networking
watchDhcp is a simple script that lets you watch and react to a change in the system's IP address. It is useful for automatically reconfiguring NAT, DNS, and firewall services.]
This script has been written to help keep an unattended OpenBSD box working as a firewall on a cable modem. The box gets its IP through DHCP, and as such this can change. When the IP changes, there have been problems with NAT and IPF -- so these are restarted/reconfigured. Since the DNS records must also be updated, when the IP changes this information is mailed to a sent admin address, so the machine is never "lost".

Whenever something else comes up that mucks up the machine, I add it to this script. So far so good, five months and counting.

Last updated on June 29th, 2006

#dhcp script #perl script #ip changes #ip #dhcp #script #perl

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