[NTLUG:Discuss] how do I run two instances of named?

[MadHat]

Randall Gibson wrote:
> 
>         You can find which services are bound to which port in 
> /etc/services/ You can find the actual service commands / setup in 
> /etc/inetd.conf
>         While in /etc/inetd.conf , you may want to comment out all lines 
> that have services you dont want/need, even if you dont have them 
> installed. Also you need to "killall -HUP inetd" once done to have it 
> re-read the configuration files you have setup.

You are partially correct.  The only services listed in inetd.conf are
the ones handled by inetd.  There are hundreds of daemons that can not
be run/managed by inetd.  named is normally not run from inetd, it is a
stand alone daemon.    Remember that inetd is only a manager for
services designed to use it.  It waits for the request on the port and
then starts the daemon that is has assigned to that port.  The DB is
uses is thee /etc/inetd.conf, but in /etc/inetd.conf it uses the names
(usually) like ftp, thye the file /etc/services is  used to translate
from that name to port number, ftp tcp/21




>         Firewalling is much different, it involves kernel level 
> configuration, and special routing to be setup during startup. I suggest 
> you read the howto, and try a basic probe of your machine at : 
> https://grc.com/x/ne.dll?bh0bkyd2 If you plan to do ipmasq , adding in 
> firewall support is just a few steps more, so is well worth it.
>         Randall Gibson
> 

> On Thu, 10 Aug 2000 20:17:06 m m wrote:
> >
> >
> >
> > >From: MadHat <madhat at unspecific.com>
> > >
> > >m m wrote:
> > > >
> > > > Hi all:
> > > > as Title, How do I run two instances of named at boottime?
> > > >
> > > > in the /etc/rc.d/init.d/named (RH 6.2) start section, I edit like:
> > > >
> > > > ...
> > > > daemon named -u nobody -g nobode /etc/named.public.conf
> > > > daemon named -u nobody -g nobode /etc/named.private.conf
> > > > ...
> > > > (there are these two files)
> > > >
> > > > it seems does not work in this way, do it?
> > > > when I check with "ps auxww | grep named" it only show the first one.
> > > >
> > > > any help?
> > >
> > >Unless you bind them to different ports, you can't.  You can only have
> > >one daemon listenning to aany given port at a time.  The first one binds
> > >to port 53 so the second one can't start.  The other option would be to
> > >have each one bind to a different IP, like thereal IP for the "public"
> > >and a nonroutable (10., 172.) to the private, but I am not sure how to
> >
> > Is this the way people uses linux box for firewall?
> >
> >
> > >do that right off the top of my head.
> >
> > could you give me some hint or direction to find how to do this?
> >
> >
> >
> >
> > >
> > >--
> > >MadHat at unspecific.com
> > >                                    "The 3 great virtues of a programmer:
> > >                                       Laziness, Impatience, and Hubris."
> > >                                                  --Larry Wall
> > >
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-- 
MadHat at unspecific.com
                                   "The 3 great virtues of a programmer:
                                      Laziness, Impatience, and Hubris."
                                                 --Larry Wall