Re: using natd to load balance port 80 to multiple servers

_at_babolo.ru
Date: 10/26/04

  • Next message: Bruce M Simpson: "Implementing IP_SENDIF (like SO_BINDTODEVICE)" 
    To: Julian Elischer <julian@elischer.org>
Date: Wed, 27 Oct 2004 00:29:12 +0400 (MSD)

    [ Charset ISO-8859-1 unsupported, converting... ]
    > Stephane Raimbault wrote:
    > > Hi All,
    > >
    > > I'm currently using a freebsd box running natd to forward port 80 to
    > > several (5) web servers on private IP's.
    > >
    > > I have discovered that natd doesn't handle many requests/second all that
    > > well (seem to choke at about 200 req/second (educated guess))
    > >
    >
    > use the "ipfw fwd" option to directly send the packets to the appropriate machine.
    > Should be able to forwarrd at wire speed.
    >
    > you will probably need ipfw fwd running on both sides of the forward..
    > one on the switch machine to forward packets to one machine and one on
    > that machine to "capture" those packets to a local socket.
    Simplier.
    ifconfig lo1 inet IP
    with the same IP on every balansed computer,
    and then
    fwd balanserIP ip from any:mask to IP
    for each balanserIP,
    where IP is some address, routable by router, the same for each
    balansed computer.

    > > There are other packet filtering options on FreeBSD and I wonder if I
    > > can use them to do what I'm trying to do with natd.
    > >
    > > Would someone be able to point me to documentation or help me have
    > > either ipf/ipfw/pf forward port 80 traffic to private space IP's?
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  • Next message: Bruce M Simpson: "Implementing IP_SENDIF (like SO_BINDTODEVICE)"