Re: Redirection to Other IP Addresses

Julian Reschke <julian.reschke@gmx.de> Fri, 26 July 2019 09:05 UTC

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To: Bin Ni <nibin@quantil.com>, "ietf-http-wg@w3.org" <ietf-http-wg@w3.org>
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From: Julian Reschke <julian.reschke@gmx.de>
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Subject: Re: Redirection to Other IP Addresses
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On 24.07.2019 01:32, Bin Ni wrote:
> Hi All,
>
> We trying to propose an addition to the HTTP protocol to support
> redirecting client to other IP addresses.
>
> The background is many website owners and CDN providers want the web or
> proxy servers to be able to participate in load balancing. For example,
> when the server is overloaded, redirect the request to some other
> servers; or based on the geo information of client IP address, send the
> client to a server that can provide better performance. Compare to the
> DNS-based load balancing, this method is more real time and more
> accurate. It can also take the URL, headers or other components in the
> HTTP request into consideration.
>
> What they can use today is the 30X redirection, which has at least the
> following limitations:
> 1. breaks the cookie, if you 30x redirect to another hostname or IP address.
> 2. breaks https if you redirect to another IP address.
>
> We need another way of telling the client/browser to only change the IP
> address but keep everything else the same.
>
> We put the proposal in a google doc at:
> https://docs.google.com/document/d/1gtF6Nq3iPe44515BfsU18dAxfCYOvQaekiezK8FEHu0/edit?usp=sharing
> You can post your questions and comment in the document or reply to this
> email.
> If this is not the correct way to submit a proposal, someone please
> point me to the right direction.
> Thanks!
> --
> Bin Ni
> www.quantil.com <http://www.quantil.com>

Did you consider Alt-Svc? (See
<https://greenbytes.de/tech/webdav/rfc7838.html>)

Best regards, Jullian