Re: [SLE] connection redundancy

From: Ken Schneider (suse-list_at_bout-tyme.net)
Date: 04/26/05

  • Next message: Randall R Schulz: "Re: [SLE] Alert" 
    To: SuSE email list <suse-linux-e@suse.com>
Date: Tue, 26 Apr 2005 10:10:12 -0400

    On Tue, 2005-04-26 at 15:28 +0200, Hans du Plooy wrote:
    > Hi list,
    >
    > I have a client who have two lines, one a 64k leased line specifically
    > for e-mail, the other a 512k ADSL for browsing and general internet use.
    >
    > Unfortunately the 64k line turns out to be not as reliable as it should
    > (due to the telco, I suspect), but as it's a 24month contract, not much
    > we can do.
    Sure you can, keep complaining and threaten to go else where if they
    don't provide the service they promised. I'm sure they promised
    something better then 70% uptime.

    >
    > What I would like to do is use the ADSL as a backup. The 64k line is
    > the primary MX, the ADSL backup MX.
    >
    > Problem is, when the 64k line goes down, the mail server still tries to
    > reply via the usual gateway, which is the router just this side of the
    > line. In other words it doesn't know that the line has gone down,
    > because it's own gateway is still up.
    >
    > Is it possible to set a timeout to all traffic to the default gateway,
    > and have it try a backup gateway?
    >
    > The mailserver is SUSE 9.2 Pro, the ADSL is on an IP-COP firewall - both
    > share the same internal network.
    >

    Perhaps this can be done through the use of a proxy server for outgoing
    but not for incoming unless you have a fixed IP on the DSL line. 

    -- 
Ken Schneider
UNIX  since 1989, linux since 1994, SuSE  since 1998
 "The day Microsoft makes something that doesn't suck is probably
  the day they start making vacuum cleaners." -Ernst Jan Plugge
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  • Next message: Randall R Schulz: "Re: [SLE] Alert"

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