[Sunhelp] Roadrunner and private network DNS

Doug McLaren dougmc at frenzy.com
Sun Sep 24 17:01:12 CDT 2000


On Sun, Sep 24, 2000 at 05:28:00PM -0400, David Rouse wrote:

| I've got a smallish network at home (nothing worth posting a picture of
| here) and I'm getting RoadRunner installed soon, so I've been looking at the
| FAQs and Time Warner's service agreement. It seems like it is only a
| violation of the service agreement to attach the cable modem directly to a
| hub

The AUP's (at least in Austin) are a mess.

If you buy multiple IP's, how else would you use it if not through a hub?

| -- it has to be connected to a computer.

But not a `server'.  And what is a Unix box if not a server?

The AUPs suck.

| So I've got this IPX with a
| second ethernet card and my thought has been to use it running ip-filter's
| NAT as a gateway.

That's a good plan.
 
| A few DNS/DHCP related concerns:
| 
| * The private network uses BIND (running on the IPX) for host resolution at
| the local level. It looks like I loose control over what resolvers I use
| with DHCP. Is there anyway I can still have the IPX use the name resolver
| that I choose, rather than the DHCP values?

The dhcpc daemons tend to overwrite /etc/resolv.conf with the DHCP
provided data.  There may be a flag/option to dhcpcd to prevent this.
Check it's man page.

If that fails, you can create an `after script' that's run after you
get an IP.  Make the after script copy the correct /etc/resolv.conf
over the one just generated by dhcpcd.

Another option is to make the /etc/resolv.conf an immutable file.
Solaris does support this, right?  (I can't remember.)

If you do this, even root can't write to it until it's undone.
| 
| * I'd like to have the IPX send syslog messages to another machine, is there
| a way to make this work?

Edit /etc/syslog.conf, add a line like this -

   *.debug		@remote-host

kill -HUP {syslogd pid}

Make sure that the spaces in syslog.conf are really tabs.  I don't
know why this is needed, but it is.

That's it.

-- 
Doug McLaren, dougmc at frenzy.com
`Mr. Spock succumbs to a powerful mating urge and nearly kills Captain Kirk.'
  -- TV Guide, describing the Star Trek episode _Amok_Time_





More information about the SunHELP mailing list