Re: [PLUG] DNS Server?

[gabriel rosenkoetter <gr@eclipsed.net>]

On Sat, Jan 19, 2002 at 01:53:18PM -0500, Michael F. Robbins wrote:
> DHCPCD will (by default) overwrite /etc/resolv.conf with the new
> nameservers.  Look for the lines "nameserver xxx.xxx.xxx.xxx".  I prefer
> to run a local nameserver, so I have dhcpcd run with the "-R" option so
> it won't overwrite resolv.conf.

Is there no way to just add your information in before dhcpcd does
the writing?

dhclient, by Ted Lemon of the ISC and the default dhcp client in the
BSDs and, last I heard, Debian, makes this really easy; you can
just overwrite the function that does the actual writing of the
resolv.conf file. I do this:

make_resolv_conf() {
  if [ \( ! -z "$new_domain_name" \) -a \
       \( ! -z "$new_domain_name_servers" \) ]; then
       #echo search $new_domain_name > $RESOLV
       echo search eclipsed.net swarthmore.edu speakeasy.net > $RESOLV
			 echo "nameserver 10.0.0.1" >> $RESOLV
       for nameserver in $new_domain_name_servers; do
         echo nameserver $nameserver
         done >> $RESOLV
  fi
}

(Yes, I run a DNS on my firewall. It's BIND9 set to only look at the
internal interface, so it's really not a liability.)

-- 
gabriel rosenkoetter
gr@eclipsed.net

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