SBS Setup Best Practice?

Discussion in 'Windows Small Business Server' started by Mark, May 5, 2006.

  1. Mark

    Mark Guest

    Hi,
    I am installing a new SBS 2003 server and intend to use the configuration
    below, and would like to know if I have thought this through properly and if
    it's a Best Practices scenario:

    1. SBS 2003 Domain Name (companyname.local), two nics. Need to access email
    and RWW externally, and connect non-networked PC's to router for internet
    access.
    2. Externally hosted website: www.companyname.com.
    3. 4 port DSL router (DHCP OFF).
    4. Static IP 74.x.x.x.
    5. External nic IP 192.168.254.100
    6. Internal nic IP 192.168.1.16
    7. Use https://servername.companyname.com to access server for RWW and OWA.


    Q.1) At host I need to add an "A" record like so:
    @ IN A 74.x.x.x (SBS server)
    Mail IN A 74.x.x.x (SBS server)
    servername IN A 74.x.x.x (SBS server)
    WWW IN A 88.x.x.x (External website)
    @ IN MX 5 mail.companyname.com

    Q.2) At ISP I need to have them add an "A" record like so:
    74.x.x.x IN A 192.168.254.100

    Then I'll be able to access www.companynames.com website at host, and
    email/RWW as SBS server at https://servername.companyname.com?
     
    Mark, May 5, 2006
    #1
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  2. Mark

    stephen Guest

    No, these are set up in ISP's DNS for the companyname.com domain. You
    don't need to modify the DNS on your SBS box as it only handles the
    ..local domain.

    (You'd also be wise to obtain a backup MX to queue mail if your server
    or internet connection goes down)
    No, you don't need this at all. Remember that 192.168 IP addresses are
    not routeable over the Internet; they're for internal use only, and so
    it doesn't make sense to have them in external DNS. (The syntax of that
    A record is wrong too).
    You need to make sure the appropriate ports are forwarded from your DSL
    router to your SBS external nic. Usually, 443 (https), 25 (smtp), and
    4125 (rww) are sufficient. This is done in the dsl router configuration.

    You then connect your network PCs to the internal sbs nic via a switch.

    (I actually prefer the simplicity of a single nic solution, but that's
    another story).

    -- stephen
     
    stephen, May 5, 2006
    #2
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  3. Mark

    Mark Guest

    Thanks for the reply Stephen, however, I think you misunderstood me though.
    These setting are for the web hosting provider wher my NS are pointed to

    Q.1) At host I need to add an "A" record like so:
    @ IN A 74.x.x.x (SBS server)
    Mail IN A 74.x.x.x (SBS server)
    servername IN A 74.x.x.x (SBS server)
    WWW IN A 88.x.x.x (External website)
    @ IN MX 5 mail.companyname.com

    Since my registar is pointing NS to my web hosting provider, I have to get
    my web hosting provider's DNS to point to my server box correct? And because
    I'm using 192.168.254.100 for my external nic IP, don't I have to get the ISP
    to point traffic for 74.x.x.x --> 192.168.254.100, because I have other
    non-networked PC's connected at the router?
    Or to put it another way. What is the route from my Registered Domain name
    companyname.com, to my webhosting provider, to my ISP, to my router, to my
    SBS 2003 box?
    If it's;

    Registar: NS --> WebHostingProvider
    WebHostingProvider DNS--> web site (www.companyname.com)
    DNS--> SBS box
    (https://servername.companyname.com)

    Then somehow I have to tell 74.x.x.x traffic to use the SBS external nic IP
    of 192.168.254.100 which is static, rather than DHCP address range
    192.168.254.1- 99 ?

    Sorry if I'm being dense.
    Mark
     
    Mark, May 5, 2006
    #3
  4. Mark

    cjobes Guest

    Stephen didn't misunderstand you. You are creating an A record on your ISP
    OR Registrar DNS(depending who runs the authoritative DNS) that will point
    to the public IP of your DSL router (i.e. mail.yourcompany.com). Then you
    create an MX record pointing to mail.yourcompany.com. That's it. On your DSL
    router you then forward everything you want to let through to your WAN SBS
    address.

    Claus
     
    cjobes, May 6, 2006
    #4
  5. Mark

    Garth H Guest

    Mark, I think you've got it right the first time.

    Your DNS provider will publish the records as you posted above, and
    traffic should go where it's supposed to. The only gotcha I can see is
    if your web provider is using your domain for website based mail.

    If that were the case then you'd need an MX for wwwmail.company.com and
    mail.company.com

    Okay now someone reply back and tell me I'm full of it or not.
     
    Garth H, May 6, 2006
    #5
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