Dear mailing list,
I am sorry if this question has been asked over and over again - however
the htdig search interface for the lists is somewhat shaky and gives
referrer errors for me.
Dualhomed firewalled FreeBSD7.1. One nic is LAN and the other dynamical
IP from ISP.
Question: What is the canonical way for catching the IP address from a
DHCP assigned nic (from ISP that doesn't set hostname) and put the IP
into /etc/hosts with a hostname?
Reason for asking
Firewall rules needs refreshing after new IP
Create dhcp-exit-hooks (undocumented?) in /etc like so:
if [ ! -z "$new_ip_address" ]; then
IP=`ifconfig WAN | grep 'inet' | grep -v 'inet6' | cut -f 2 -d ' '`
if [ ! -z "$IP" ]; then
echo "$IP wan.local.domain wan" >> /etc/hosts
<refresh firewall rules here>
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