>>>>> "BL" == Ben Lutgens <blutgens at sistina.com> writes: BL> On Wed, 2002-01-09 at 11:25, Robert P. Goldman wrote: >> Sorry. I should have pointed out that I have a small network >> behind a firewall, and the firewall serves up the DNS addresses >> to the machines behind the firewall using DHCP. So I'm not >> sure how to use a hosts file to keep track of addresses. I >> hate to go to the trouble of setting up a DNS server for what >> seems like a trivial net. Is there an alternative? BL> Yes, the /etc/hosts file. Add what we told you to the BL> /etc/hosts file of the mailserver and all will be well. The IP BL> you use is the actual address of the machine on your LAN. So is there some way I can use if-up or some such mechanism to automagically echo the dhcp-issued ip address into /etc/hosts? Otherwise, since my IP address isn't fixed, there's no way to know a priori what address should go into /etc/hosts, is there? R