Date: Thu, 06 Jul 2006 06:53:53 -0500 From: Derek Ragona <derek@computinginnovations.com> To: "Michael S" <msherman77@gmail.com>, "FreeBSD Mailing List" <freebsd-questions@freebsd.org> Subject: Re: DNS beginner question Message-ID: <6.0.0.22.2.20060706065115.026f5678@mail.computinginnovations.com> In-Reply-To: <d5f57b9c0607060433l121f5132k13428a986887d796@mail.gmail.co m> References: <d5f57b9c0607051906g2b0f71b1h280594cd73d4a73@mail.gmail.com> <f2c91f770607051951s1864cf65j5443d90611368b@mail.gmail.com> <d5f57b9c0607060356j4874c3aaidfab02e3280f81ad@mail.gmail.com> <6.0.0.22.2.20060706061142.0277b1e8@mail.computinginnovations.com> <d5f57b9c0607060433l121f5132k13428a986887d796@mail.gmail.com>
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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@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@gmail.com> wrote:
>>
>>
>>
>> On 7/5/06, Michael S <msherman77@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@fbsd ~]# fortune
>> Happiness is just an illusion, filled with sadness and confusion.
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