[Leaplist] DNS intranet advice

Dan Cherry dan.s.cherry at gmail.com
Mon Nov 10 19:38:22 EST 2008


On Monday 10 November 2008 11:49:31 am Dan Cherry wrote:
> On Saturday 08 November 2008 9:57:46 pm Bryan J. Smith wrote:
> > Dan Cherry <dan.s.cherry at gmail.com> wrote:
>
> <snip>
>
> So I also took a look at dnsmasq (the first I'd heard of that program) -
> verified the latest versions, checked some of the usual dns security blurbs
> (cache poisoning, etc.) and found 2.45 was good for now.
>
> I'm impressed - I had dnsmasq up and running in less than two minutes!!! 
> This included apt-get blah-blah and make minor changes to  hosts and
> resolv.conf! (of course it took an hour to read what had to be done - but
> that takes a little away from the story).  I'll be moving my dhcp chores
> from the linksys router to dnsmasq, later this evening.  I'll post back if
> I have any points of interest.  Thanks again, for the reply and the
> suggestion.  It's looking like a winner.
> <snip>
>
Just a quick followup - setting up dhcp took a half hour of reading how-to's, 
and about 15 minutes to collect and configure the dhcp options.  And another 
couple minutes to disable the Linksys dhcp service.

there was one hiccup!  Be SURE to set the default gateway to the router.  
Otherwise dnsmasq will default to using the server address as the default 
gateway, and nothing will leave your intranet.  This was an extra 20 minutes 
of troubleshooting.  Not a bad investment in time for DNS & DHCP.

One bonus - you can assign specific ip addresses from dhcp based on mac 
addresses - very nice for specifying dns names for dhcp machines.
>
> --
> Dan
> Finding a solution to a problem doesn't solve the problem...
> Implementing the solution, solves the problem



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