Newbie needs help - non-authoritative lookup, reverse zone

[Arthur Penn]

Thanks. A few more dense questions follow...

phn at icke-reklam.ipsec.nu wrote in message news:<c9l5ir$2ugs$1 at sf1.isc.org>...
> > 2) I set up a reverse lookup zone to try to resolve names of machines
> > on the local net. Since most of the local machines have their IP
> > addresses set by DHCP from the router, how can I get the entries for
> > these machine names to show up automatically in the zone file?
> 
> Short answer : you cannot unless your router updates the 71.168.192.in-addr.arpa
> zone with the actual leases. 

Do you know if there a way to force this to happen?


> > 3) I had changed /etc/resolv.conf before to remove the nameservers of
> > my ISP that DHCP placed there and use my local DNS, but sometime today
> > something overwrote /etc/resolv.conf and put the ISP's DNSes back in
> > there. How can I stop this?
> DHCPclient does this. If your router is a linux or bsd box you might 
> elevate ( chflag(1) ) the protection of /etc/resolv.conf 

Sorry, I'm pretty new to Linux and I don't seem to have a chflag
command. Is this something I can do with chmod?

Thanks for your reply!

Arthur