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Re: postfix behind load balancers

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  • Robert Schetterer
    ... Hi Brian, youre right but all the stuff you mentioned should be avoided therfor i had asked for practice experience with LB in running setups -- Best
    Message 1 of 4 , Oct 31, 2008
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      Brian Evans - Postfix List schrieb:
      > Robert Schetterer wrote:
      >> Hi @ll,
      >> has anbody experience with
      >> postfix behind load balancers
      >> im planning to test
      >> ha-proxy
      >> pen
      >> balance(ng) on ubuntu hardy in a HA-Cluster
      >> in front of postfix servers
      >>
      >
      > The pro's and con's of load balancing has been discussed many times
      > here. Search the archives for details.
      >
      > A different, and possibly better, way to handle the load of mail is a
      > simple round-robin DNS or multiple MX records of the same priority.
      >
      > A load balance setup can, and probably will, change the TCP source.
      > This is important in the detection of mynetworks as well as the
      > requirement for the XFORWARD command. Otherwise, Postifx will not know
      > the true origination and always log the load balancer as the source.
      >
      > A poor load balance setup can possibly allow open relay.
      >
      > Brian

      Hi Brian, youre right but
      all the stuff you mentioned should be avoided
      therfor i had asked for practice experience with LB
      in running setups

      --
      Best Regards

      MfG Robert Schetterer

      Germany/Munich/Bavaria
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