configuring dns and dhcp Post: 302282033

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Special Forums IP Networking configuring dns and dhcp Post 302282033 by otheus on Friday 30th of January 2009 03:58:19 AM

01-30-2009

Registered User

Do you mean the "inside" LAN has only hosts with IPs like "192.168.x.x" while the "outside" LAN has normal, canonical addresses (anything BUT 192.168.x.x and 10.x.x.x)??

If so, you set up two instances of your DNS server (and two configuration files, two cache directories, etc). One DNS server listens on the "inside" IP (192.168.2.14), while the other listens on the default IP (0.0.0.0) -- which means the outside world. Your configure your "inside" DNS server so that all queries to it concerning your domain(s) will be answered with 192.168.x.x addresses. All other queries are forwarded to the DNS service running on the other IP.

No change is needed to the DHCP server, except maybe (if you hadn't already done this) that the clients receive information that their DNS server should be the one on 192.168.x.x.

otheus

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LEARN ABOUT DEBIAN

desproxy-dns

desproxy-dns(1) 						   User Commands						   desproxy-dns(1)

NAME

       desproxy-dns - DNS for dynamic connections

SYNOPSIS

	  desproxy-dns dns_server proxy_host proxy_port

OPTIONS

       None

DESCRIPTION

       If you have direct DNS access then you don't need to do anything else.  You know you have direct DNS access if you can resolve host names
       to IP addresses.

       NOTE: as desproxy-dns listens in port 53 (which is less than 1024) you may need administrator privileges to exec desproxy-dns (in fact if
       you are running UN*X, you actually have to run desproxy-dns as root).

       OK, so you have a dns server accessible now. But your computer doesn't know anything about that. You must configure your network
       accordingly (again, need to be root in UN*X).

       Edit /etc/resolv.conf and add the line "nameserver 127.0.0.1". You don't have to restart anything. Just test ping and see if it works.

ENVIRONMENT

       None.

FILES

       None.

SEE ALSO

       dnsproxy(1), ping(1)

AUTHORS

       This manual page was written by Jari Aalto <jari.aalto@cante.net>, for the Debian GNU system (but may be used by others). Released under
       license GPL v2 or any later version.

desproxy-dns							    2012-03-26							   desproxy-dns(1)