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Re: Modifying nginx for use as transparent, forward proxy

张立冰
September 10, 2009 06:30AM
Igor, thanks.

2009/9/10 Igor Sysoev <is@rambler-co.ru>

> On Thu, Sep 10, 2009 at 02:12:55AM -0700, Mark Preston wrote:
>
> > Hi All,
> >
> > My understanding is that nginx cannot be used as a forward proxy out of
> the
> > box. Is this correct?
> >
> > If so, my thinking is that by making some small modifications to
> > ngx_http_proxy_module.c, it would be possible to have a nginx.conf file
> with
> > "proxy_pass asdf", where asdf ends up being ignored with the new surgical
> > edits to ngx_http_proxy_module.c. Instead of doing the complex lookups to
> > figure out the backend server, it would simply pull out the "Host" from
> the
> > browser/client request being made, and use that as the appropriate URL to
> > fetch.
> >
> > Would this work?
> >
> > (As a background, I currently have a squid + ICAP setup in transparent
> proxy
> > mode, and it works fine for proof-of-concept, but falls over in terms of
> > performance. As a result, I'm trying to use nginx as a replacement. And
> with
> > the http_sub module, I'm thinking I don't even need ICAP, since we only
> add
> > a small snippet after the HTML head section of every web page.)
> >
> > If there are better / easier ways of getting nginx to work as a forward
> > proxy, please let me know, and I'd be happy to contribute the edits back.
> >
> > Thanks!
> > Mark
> >
> > PS. If the response is in Russian, that's cool too. I can read it just
> fine
> > (and speak it), but my writing is rather poor. :-)
>
> Although writing in Russian is more easy for me I answer in English,
> since this is English mailing list.
>
> You may try the following configuration:
>
> http {
>
> resolver 127.0.0.1; # do not forget to run named on localhost
>
> server {
> location / {
> proxy_pass http://$http_host$request_line;
> sub ...
> }
> }
>
> However, I can not say that it will work without any issue.
>
>
> --
> Igor Sysoev
> http://sysoev.ru/en/
>
>


--
The time you enjoy wasting is not wasted time!
Subject Author Posted

Modifying nginx for use as transparent, forward proxy

Mark Preston September 10, 2009 05:20AM

Re: Modifying nginx for use as transparent, forward proxy

Igor Sysoev September 10, 2009 05:38AM

Re: Modifying nginx for use as transparent, forward proxy

张立冰 September 10, 2009 06:30AM



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