Does anyone know how to setup wildcard DNS using bind?
I am working on a small network that will be mobile and not connected to the internet. What I'd like to happen is no matter what URL a user might type in, their browser always goes to the same website located on the same mobile LAN.
Mike
On Fri, Aug 19, 2005 at 10:39:03AM -0500, Mike Kercher wrote:
Does anyone know how to setup wildcard DNS using bind?
I am working on a small network that will be mobile and not connected to the internet. What I'd like to happen is no matter what URL a user might type in, their browser always goes to the same website located on the same mobile LAN.
Setup your server to be authoritative for root (.) and serve up a *. A record in there. Some of the alternate root network sites (ie. OpenNIC) have instructions for setting up BIND to be authoritative for .
centos-bounces@centos.org <> scribbled on Friday, August 19, 2005 10:50 AM:
On Fri, Aug 19, 2005 at 10:39:03AM -0500, Mike Kercher wrote:
Does anyone know how to setup wildcard DNS using bind?
I am working on a small network that will be mobile and not
connected
to the internet. What I'd like to happen is no matter what
URL a user
might type in, their browser always goes to the same
website located
on the same mobile LAN.
Setup your server to be authoritative for root (.) and serve up a *. A record in there. Some of the alternate root network sites (ie. OpenNIC) have instructions for setting up BIND to be authoritative for .
Thanks Alan. I'm googling now. If you have a link, I'd appreciate it :)
Mike
On Fri, Aug 19, 2005 at 10:54:05AM -0500, Mike Kercher wrote:
Setup your server to be authoritative for root (.) and serve up a *. A record in there. Some of the alternate root network sites (ie. OpenNIC) have instructions for setting up BIND to be authoritative for .
Thanks Alan. I'm googling now. If you have a link, I'd appreciate it :)
Something like:
zone "." in { type master; file "root.zone"; };
... instead of the type hint section for .
It's been a long time since I used BIND, so this is just a suggestion.
centos-bounces@centos.org <> scribbled on Friday, August 19, 2005 11:42 AM:
On Fri, Aug 19, 2005 at 10:54:05AM -0500, Mike Kercher wrote:
Setup your server to be authoritative for root (.) and
serve up a *.
A record in there. Some of the alternate root network sites (ie. OpenNIC) have instructions for setting up BIND to be
authoritative
for .
Thanks Alan. I'm googling now. If you have a link, I'd
appreciate it
:)
Something like:
zone "." in { type master; file "root.zone"; };
... instead of the type hint section for .
It's been a long time since I used BIND, so this is just a suggestion.
That worked perfectly. If I nslookup anything, it all resolves to the same 192.168.x.x address. This is what the root.db looks like"
$TTL 86400 @ IN SOA @ root ( 42 ; serial (d. adams) 3H ; refresh 15M ; retry 1W ; expiry 1D ) ; minimum
IN NS @ *. IN A 192.168.100.50
Thanks for the help!
Mike
on some of my name servers I use entries like this to generate generic reverse lookups
$generate 69-254 $ PTR ip-195-206-108-$.soundnetworks.net. * PTR generic.soundnetworks.net.
you can do the same for forward lookups,
But a better way is to use iptables: in iptables if you have a linux box as your default gateway, you can use it to say trap port 80 out bound and redirect to port 80 on the local box itself or any other local box, that way you can avoid the DNS stuff eg:
iptables -t nat -A PREROUTING -i $INT_IFACE -p tcp --dport 80 -j REDIRECT --to-port 80
This will redirect ALL port 80 requests to any remote ip to port 80 on the local box, you can check it works if you doubt it by starting up sendmail on the same box making sure sendmail is not running on 127.0.0.1 only and changing the 80s above to 25.
Then from inside the LAN telnet to ANY remote ip address on port 25 and your firewall sendmail will trap it, in the same way change it port 80 and whatever url you type your local webserver will serve it....make sure your local webserver is not set to serve virtual hosts.....that way it does not look at the actual url requested in the http header..
Regards
Pete
Alan Hodgson wrote:
On Fri, Aug 19, 2005 at 10:54:05AM -0500, Mike Kercher wrote:
Setup your server to be authoritative for root (.) and serve up a *. A record in there. Some of the alternate root network sites (ie. OpenNIC) have instructions for setting up BIND to be authoritative for .
Thanks Alan. I'm googling now. If you have a link, I'd appreciate it :)
Something like:
zone "." in { type master; file "root.zone"; };
... instead of the type hint section for .
It's been a long time since I used BIND, so this is just a suggestion.
-
Alan Hodgson -
Mike Kercher -
Peter Farrow