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  • questions about using Frontend server

    Hi!

    My company has a quite different exchange environment than most. We have 5 boats that uses exchange locally and then when connected to shore the serveren sends it's mail to our main server. We do not have 100% connectivy at see and we have adjusted our environment so it works quite well.

    Now we have our main server connected to the outsideworld, and we are thinking about using a frontend server, however, my question is: If I setup a frontend server, are we able to connect directly to our backend servers?

    for instance, all our clients that are connected to shore can connect to the front-end, and all that is connected to the sea-exchange can connect either to the forntend or the backend?

    (front-end only when the sea-exchange is connected ofcourse..)
    but the main issue is that I want all my exchanges as backendservers, and still be able to connect to them directly.
    Is it possible?

    thanks in advance.

    /Michael

  • #2
    Re: questions about using Frontend server

    Question 1 - why do you want to use a frontend server?

    Frontend servers are used for two reasons only - load and a single point of entry. They should not be considered something that is done for security. In that respect they are no different to connecting to the backend server.
    If you want to increase security then you would use an ISA server, possibly in front of the Frontend server.

    At present all of your servers are backend servers. A frontend server is just a proxy. No configuration changes are required to the backend servers to make a frontend server required, unless you have done customisation of the settings, such as require SSL certificates etc. A frontend server is just a proxy and it will try and connect to the backend server directly when traffic comes in.
    Clients will use the frontend server when off site and will connect to their backend server when on the network.

    Simon.
    --
    Simon Butler
    Exchange MVP

    Blog: http://blog.sembee.co.uk/
    More Exchange Content: http://exchange.sembee.info/
    Exchange Resources List: http://exbpa.com/
    In the UK? Hire me: http://www.sembee.co.uk/

    Sembee is a registered trademark, used here with permission.

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    • #3
      Re: questions about using Frontend server

      Originally posted by Sembee View Post
      Question 1 - why do you want to use a frontend server?

      Frontend servers are used for two reasons only - load and a single point of entry. They should not be considered something that is done for security. In that respect they are no different to connecting to the backend server.
      If you want to increase security then you would use an ISA server, possibly in front of the Frontend server.

      At present all of your servers are backend servers. A frontend server is just a proxy. No configuration changes are required to the backend servers to make a frontend server required, unless you have done customisation of the settings, such as require SSL certificates etc. A frontend server is just a proxy and it will try and connect to the backend server directly when traffic comes in.
      Clients will use the frontend server when off site and will connect to their backend server when on the network.

      Simon.
      First of all, thank you for answering so quickly.

      1. I am thinking of using a front end little bit for security (tighten it down a lot) and we have a cisco firewall that is very secured, but mostly for our webaccess (owa/activesync) purposes so that users that belongs to the exchanges that does not always have a connection to the mainland can connect and read their emails when that exchange has a connection without having to have a lot of different owa sites. But that requires that my lan-clients still can connect straight to the backend server and not go through the frontend.

      But from what I understand that shouldn't be a problem. I just put an exchange server lock it down and make it frontend and i can still connect directy to the backend OR the frontend, am I correct?

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      • #4
        Re: questions about using Frontend server

        You can't really tighten an Exchange server - whether it is a frontend or a backend, due to its nature. It is designed to be a member of the domain and that requires quite open settings. If you want to secure the traffic use ISA, as that is what it was designed for.

        If the users have a way of connecting to their Exchange server directly at the moment then that will not change. All that a frontend server does is allow you to add an additional point of entry that is the same for all users. They can therefore use either the URL for backend server, or the URL for the frontend server.

        Simon.
        --
        Simon Butler
        Exchange MVP

        Blog: http://blog.sembee.co.uk/
        More Exchange Content: http://exchange.sembee.info/
        Exchange Resources List: http://exbpa.com/
        In the UK? Hire me: http://www.sembee.co.uk/

        Sembee is a registered trademark, used here with permission.

        Comment


        • #5
          Re: questions about using Frontend server

          ok, thanks for all your help. It was very helpful.

          /Michael

          Comment


          • #6
            Re: questions about using Frontend server

            I would also have a look over a few of these:

            http://www.msexchange.org/tutorials/...ent-Part1.html
            http://msexchangeteam.com/archive/20...31/403157.aspx
            http://technet.microsoft.com/en-us/l.../aa997203.aspx

            For 2007
            http://technet.microsoft.com/en-us/l.../aa998208.aspx
            cheers
            Andy

            Please read this before you post:


            Quis custodiet ipsos custodes?

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