DNS beginner question

[Derek Ragona]

You need a second IP for the secondary server.  With a single public IP and 
port forwarding, you get only one destination.

All you need is to add entries to DNS maps for the other host records you 
want.  I assume your DNS is being hosted elseware now, so just have them 
add the two additional host records.

         -Derek


At 06:33 AM 7/6/2006, Michael S wrote:
>Derek,
>
>Actually my domain is a subdomain (e.g. mysubdomain.domain.com), and
>obviously the domain server for domain.com points correctly to my
>site.
>What I want to have (mostly for the sake of configuring DNS) is
>something like www.mysubdomain.domain.com, and
>ftp.mysubdomain.domain.com.
>
>Can my second BSD machine be the secondary DNS?
>
>When you say set it up correctly on the router, you mean forwarding
>the requests from port 53 to the BSD machine, running BIND? Or there
>are extra steps that I need to take?
>
>
>Thanks a lot.
>Michael
>
>On 7/6/06, Derek Ragona <derek at computinginnovations.com> wrote:
>>
>>  Yes DNS will work with your port forwarding assuming you have it set up
>>correctly on your router.
>>
>>  Are you trying to be the authoritative DNS for your domain?  If you are you
>>will still need a secondary DNS.
>>
>>          -Derek
>>
>>
>>
>>  At 05:56 AM 7/6/2006, Michael S wrote:
>>
>>
>>The "open" ports are simply port-forwarded from the router to my
>>  internal network (NAT). And I only have one public IP.
>>  For me the more important issue is whether DNS would work with private
>>  IP addresses.
>>
>>
>>  On 7/5/06, David Stanford <dthomas53 at gmail.com> wrote:
>>
>>
>>
>>  On 7/5/06, Michael S <msherman77 at gmail.com > wrote:
>>  > Hi all.
>>  >
>>  > I am trying to set up a DNS service. I have 2 FreeBSD machines, one's
>>  > web and DNS (that I am setting up) and the other FTP. Both machines
>>  > are behind a router and get local addresses (i.e. 192.168....). If
>>  > DNS, FTP and web ports in the router are open, will I be able to set
>>  > up the DNS in a way such that when someone from the outside types
>>  > www.mydomain.com, he'll be taken to the machine that runs apache, and
>>  > when he types ftp.mydomain.com he'll be taken to the machine which
>>  > runs ftp?
>>  > By the way simply typing ftp://mydomain.com and http://mydomain.com
>>  > does the trick, but I want it to work with prefixes too.
>>  >
>>  > Hopefully my question isn't too confusing.
>>  >
>>  > Thanks in advance.
>>  > Michael
>>  >
>>
>>  Hi Michael,
>>
>>  You'll have to clarify "open" regarding the WEB, DNS, and FTP ports on the
>>  router. Are they simply port-forwarded to the internal servers (meaning
>>  based on service ports) or do you have one-to-one NAT mapping a public IP
>>to
>>  an internal for each server? If it's the latter, and each machine has its
>>  own public IP, then you can simply set DNS to point to each server
>>  respectively:
>>
>>  www.mydomain.com -> publicIP1 -> privateIP1
>>   ftp.mydomain.com -> publicIP2 -> privateIP2
>>
>>  The real question is whether you have a block of public IPs or just one.
>>But
>>  to be honest, you can probably get away with just having a single public IP
>>  and using port forwarding as most browsers (including Firfox and IE)
>>  recognize the "ftp" and "www" subdomains and automatically adjust to that
>>  protocol.
>>
>>  i.e. ftp.somedomain.com will automatically be translated to
>>  ftp://ftp.somedomain.com (ftp.freebsd.org ).
>>
>>  -David
>>  --
>>  [root at fbsd ~]# fortune
>>  Happiness is just an illusion, filled with sadness and confusion.
>>_______________________________________________
>>  freebsd-questions at freebsd.org mailing list
>>http://lists.freebsd.org/mailman/listinfo/freebsd-questions
>>  To unsubscribe, send any mail to
>>"freebsd-questions-unsubscribe at freebsd.org"
>>
>>  --
>>  This message has been scanned for viruses and
>>  dangerous content by MailScanner, and is
>>  believed to be clean.
>>  MailScanner thanks transtec Computers for their support.
>>
>>
>>--
>>This message has been scanned for viruses and
>>dangerous content by MailScanner, and is
>>believed to be clean.
>>MailScanner thanks transtec Computers for their support.
>
>--
>This message has been scanned for viruses and
>dangerous content by MailScanner, and is
>believed to be clean.
>MailScanner thanks transtec Computers for their support.
>

-- 
This message has been scanned for viruses and
dangerous content by MailScanner, and is
believed to be clean.
MailScanner thanks transtec Computers for their support.