Re: [load balancing] Megaproxy issue - Alteon

From: Computer Guy (ethersecIZZATyahoo.com)
Date: Wed Aug 25 2004 - 00:27:16 EDT

  • Next message: Pete Tenereillo: "Re: [load balancing] Megaproxy issue - Alteon"

    Pete,

    Could you please elaborate on the network you're
    discussing? Why would the network address change
    between http and https connections except maybe for
    clients coming from networks that load-balance
    outbound client connections across proxy servers
    connected to different ISPs?

    Thanks.

    -B

    --- Pete Tenereillo <pt_lbIZZAThotmail.com> wrote:

    > No, that mask does NOT "work best even for shopping
    > cart persistence for the
    > majority of the megaproxies". For example, it does
    > not work for AOL, where
    > SSL connections are sent directly from the client,
    > and therefore have a
    > totally different network address than the HTTP
    > connections that go through
    > the "megaproxy".
    >
    > If you don't believe that, set it up and test for
    > yourself (I've been doing
    > that test with AOL etc. periodically for the last 10
    > years, but for
    > egg-on-face avoidance, I just tested it again 5
    > minutes ago!).
    >
    >
    > Pete.
    >
    >
    > ----- Original Message -----
    > From: "Computer Guy" <ethersecIZZATyahoo.com>
    > To: <lb-lIZZATvegan.net>
    > Sent: Sunday, August 22, 2004 6:07 PM
    > Subject: Re: [load balancing] Megaproxy issue -
    > Alteon
    >
    >
    > > You're absolutely right, nothing better than
    > (session)
    > > cookies. But that mask does work best even for
    > > shopping cart persistence for the majority of the
    > > megaproxies ... but yes, you're going to have to
    > find
    > > other alternatives for some of the networks you
    > > mentioned.
    > >
    > > --- Pete Tenereillo <pt_lbIZZAThotmail.com> wrote:
    > >
    > >> But that doesn't work for "Shopping Cart"
    > >> persistence, i.e. persistence for
    > >> financial or ecommerce apps with both HTTP and
    > >> HTTPS, because the HTTPS
    > >> connections don't go through the "megaproxy" in
    > most
    > >> such networks (and
    > >> therefore have SIPs from totally different
    > >> networks). It also does not work
    > >> (even HTTP-only) for the myriad of enterprise
    > >> networks that load-balance
    > >> outbound client connections across proxy servers
    > >> which are connected to
    > >> different ISPs, with totally different source IP
    > >> networks (of course the
    > >> mask 0.0.0.0 would work! ;-).
    > >>
    > >> The only ways to completely solve it - 0) change
    > the
    > >> app so persistence is
    > >> not needed 1) cookies (with SSL termination), 2)
    > >> explicit redirection.
    > >>
    > >>
    > >> Pete.
    > >>
    > >>
    > >> ----- Original Message -----
    > >> From: "Computer Guy" <ethersecIZZATyahoo.com>
    > >> To: <lb-lIZZATvegan.net>
    > >> Sent: Friday, August 20, 2004 10:51 AM
    > >> Subject: RE: [load balancing] Megaproxy issue -
    > >> Alteon
    > >>
    > >>
    > >> > Sure:
    > >> > From many conversations with Cisco, F5 and the
    > >> Nortel,
    > >> > the 255.255.240.0 subnet mask best accomodates
    > for
    > >> > megaproxies such as AOL for when you can't
    > persist
    > >> > using cookies and/or ssl session IDs.
    > >> >
    > >> > --- CihanSIZZATgaranti.com.tr wrote:
    > >> >
    > >> >>
    > >> >>
    > >> >> Why do you think that will work? Thanks
    > >> >>
    > >> >> -----Original Message-----
    > >> >> From: owner-lb-lIZZATvegan.net
    > >> >> [mailto:owner-lb-lIZZATvegan.net] On Behalf Of
    > >> >> Computer Guy
    > >> >> Sent: Monday, August 16, 2004 7:59 PM
    > >> >> To: lb-lIZZATvegan.net
    > >> >> Subject: Re: [load balancing] Megaproxy issue
    > -
    > >> >> Alteon
    > >> >>
    > >> >> Try 255.255.240.0
    > >> >>
    > >> >> --- CihanSIZZATgaranti.com.tr wrote:
    > >> >>
    > >> >> >
    > >> >> >
    > >> >> > Hi,
    > >> >> >
    > >> >> > I am having problem with megaproxy sites
    > >> accessing
    > >> >> to my servers..Even
    > >> >>
    > >> >> > my pmask is set to 255.255.255.0 clients
    > taht
    > >> are
    > >> >> changing the ip
    > >> >> > address frequently and staying within the
    > >> limits
    > >> >> of PMASK value are
    > >> >> > losing sessions because of the wrong
    > realserver
    > >> >> selection by AD3. I am
    > >> >>
    > >> >> > running 9.0.45 code for the moment...
    > >> >> >
    > >> >> > I habe 3 ISDs and AD3 redirects the 443
    > traffic
    > >> on
    > >> >> them with HASH
    > >> >> > (there is no other possibility for redirect
    > >> >> filter) and from ISD to
    > >> >> > realservers metric is PBIND...I am assuming
    > >> this
    > >> >> may also be the
    > >> >> > problem area for megaproxy clients....Any
    > >> >> suggestions to resolv such a
    > >> >>
    > >> >> > problem...
    > >> >> >
    > >> >> >
    > >> >> >
    > >> >>
    > >> >
    > >>
    > >
    >
    ***********************************************************
    > >> >> > Cihan SUBASI
    > >> >> > Garanti Technology
    > >> >> > Internet ve Yazilim Hizmetleri
    > >> >> > Tel:(90)(212)4783426 GSM:(90)(533)(2750353)
    > >> >> Fax:(90)(212)6576150
    > >> >> > http://www.garantitechnology.com
    > >> >> <http://www.garantitechnology.com/>
    > >> >> > mailto:cihansIZZATgaranti.com.tr
    > >> >> > Success is a wonderful thing, but never
    > >> >> underestimate the value of
    > >> >> > failure. Failure teaches many more things
    > than
    > >> >> success ever can.
    > >> >> >
    > >> >>
    > >> >
    > >>
    > >
    >
    ***********************************************************
    > >> >> >
    > >> >> >
    > >> >> >
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    > >> >> > Bu mesaj ve ekleri mesajda gonderildigi
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    >
    === message truncated ===

            
                    
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