[Fwd: Fwd: Can Bind 8 Listen On My Modem IP Address?]

[Robert L. Cochran Jr.]

I want to say thanks to "Tracker" for suggesting I start named using an
ip-up script. The script gets executed just after ppp0 is activated. By
starting named through if-up, it can now detect my ppp0 connection and
listen on it. 

I was really confused about this because using 

kill -HUP `cat /var/run/named.pid` 

after starting ppp0 would reload named but it still would not detect and
then listen on my ppp0 connection. Yes I did suspect ppp0 had to be
active for named to detect it, but kill -HUP didn't seem to work. The
simple suggestion offered by Tracker is not in the DNS and Bind book (by
Albitz and Liu) which I've been closely following since registering my
domain. 

Thanks

Bob Cochran   

-------- Original Message --------
Subject: Fwd: Can Bind 8 Listen On My Modem IP Address?
Date: Thu, 21 Dec 2000 21:23:33 -0500
From: "Robert L. Cochran Jr." <cochranb at clark.net>
To: bind-users at isc.org


I have a small 4 computer network. 2 weeks ago I registered a domain
name of my own and I want Bind 8 to service not just the internal
network, but my external domain name also so that someone on the
internet can type www.mydomain.com in a browser and connect to my
machine. However I only have a 3Com modem connected to my serial port as
ppp0. It is just a plain 56K modem. I start a ppp0 connection to dial
into my ISP. My problem is I can't get Bind 8 to listen in on the IP
address issued to me by my ISP (via the modem). I can get Bind to listen
for connections on ip addresses 192.168.0.1 (the server machine) and
127.0.0.1 but no matter what I do with named.conf, resolv.conf or my
zone data files, I can't get Bind 8 to listen for a connection on my
modem. My ISP supplies me with a static IP address (which is not related
to the domain name I just registered -- I've had this IP address for
some years now.) Apache server seems to detect this IP and listen on it
just fine because I can telnet into it on port 80 and get a good
connection. So why can't Bind listen for connections on my modem IP?

When I use nslookup and set the server to my modem's IP address, I get a
message that the server is not responding.

Some other details: I am running Bind-8.2.2_P5-25 on a Red Hat Linux 7.0
machine. Apache server is running. Samba is running too and it works. I
can smbclient into the other machines from my Linux box, those machines
can get at their shares on the Linux box. I can ping all the other
computers on my network, they can ping me, and when I type
www.mydomain.com from the browser of any internal network machine it
brings up my web page just fine. From a machine on (any) external
network, if I type www.mydomain.com in a browser I will eventually get a
message saying that the server is not available.


Thanks for all your help with this.