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- Newsgroups: comp.databases.sybase
- Path: sparky!uunet!shearson.com!mbsdev8!mneer
- From: mneer@mbsdev8.shearson.com (Marc Neer)
- Subject: Re: Can SYBASE Server listen on two ethernet interfaces?
- Message-ID: <1992Dec28.144015.2313@shearson.com>
- Keywords: SYBASE server ethernet interfaces subnets
- Sender: mneer@mbsdev8 (Marc Neer)
- Organization: Shearson Lehman Brothers
- References: <1992Dec25.014046.6506@sol.UVic.CA>
- Date: Mon, 28 Dec 1992 14:40:15 GMT
- Lines: 44
-
- In article <1992Dec25.014046.6506@sol.UVic.CA>, justice@dao.nrc.ca (Gerald Justice) writes:
- |> We have two ethernet interfaces on our SS2 server and we would like to have
- |> clients on both of the attached subnets be able to connect to the "direct"
- |> interface rather than be routed through another sun server to get to the
- |> SS2's primary ethernet interface. For more remote clients we still want to
- |> avoid the extra hop by going to the closest interface. But apparently the
- |> Sybase server only listens on one interface. A call to Tech Support
- |> seems to confirm this but it was not at all apparent that the person I
- |> spoke really even understood what I wanted to do. By the way this is not
- |> a performance issue so much as a reliability issue, we don't want the
- |> remote sites to have to depend on the third-party server having to be up just
- |> to route the packets to the second sub-net. If we turn it around then it
- |> becomes a performance issue because we will be moving our local traffic which
- |> is much more significant through this third-party server and that would be
- |> unacceptable. We could reconfigure the topology so that the local traffic
- |> and remote traffic appear on the same sub-net but it seemed so simple to
- |> have two interfaces and after all whoever heard of a network application
- |> which cared what interface the connections were arriving on?
- |> ---
- |> Gerald Justice
- |> Unix Systems (and Sybase) Manager
- |> Phone: (604) 363-0055 PDT Fax: (604) 363-0045 Telex: 049-7295
- |> Internet: justice@dao.nrc.ca Mail: Dominion Astrophysical Observatory
- |> National Research Council (Canada)
- |> BITNET: justice@nrcdao 5071 W. Saanich Road
- |> Victoria, B.C. CANADA V8X 4M6
- |>
-
- It is possible for the dataserver to listen on more than one port. This is
- accomplished by setting the hostname to 'nullhost' for the master device. Leave
- the other devices, query, console, etc., to the obvious hostname.
-
- e.g.
-
- #
- SYBASE
- query tcp sun-ether host1 5000
- master tcp sun-ether nullhost 5000
- console tcp sun-ether host1 5000
-
- This will cause the server to listen to all incoming traffic. Of course,
- this to open up security issues accross a WAN. Have fun.
-
- mdn
-