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Re: Allow internal redirect to URI x, but deny external request for x?

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Ian Hobson
August 31, 2019 10:42AM
Hi Mark,

On 30/08/19 22:23, lists wrote:
> I've been following this thread not really out of need but rather that it is really interesting. That said, I don't think for security you want to "escape" the web root. The risk is that might aid a traversal attack.
>
>
I am curious to know how this might work. Nginx itself is safe, so it
would have to be a script. And while those may indeed be vulnerable, is
the vulnerability changed by symlinking the root elsewhere? I don't see
any difference myself, but perhaps you know something I don't.

Regards

Ian
>
>
>
>
>
>   Original Message
>
>
>
> From: hobson42@gmail.com
> Sent: August 30, 2019 12:01 PM
> To: nginx@nginx.org
> Reply-to: nginx@nginx.org
> Subject: Re: Allow internal redirect to URI x, but deny external request for x?
>
>
> Hi Lewis,
>
> On 30/08/19 18:33, J. Lewis Muir wrote:
>> Hello!
>>
>> I'm using nginx 1.12.2 on RHEL 7, and I've got a FastCGI web app that
>> uses a deployment structure which uses an atomic symlink change for an
>> atomic app deploy, and I'm wishing to be able to do an internal redirect
>> in nginx to URL x, but deny an external request to the same URL x so
>> that I don't serve the same content at more than one URL.  Is there a
>> way to do that?
>>
> You could place the different versions away from the root so they cannot
> be obtained from the web. Then they can be served by setting up a
> symlink to the desired version.
>
> This can be changed using "ln -sfn version/dir serving/root" and then
> restarting nginx to pick up the new version.
>
> By not using redirects, this method should be more efficient.
>
> Regards
>
> Ian
>
> --
> Ian Hobson
>
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> nginx mailing list
> nginx@nginx.org
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>

--
Ian Hobson
Tel (+351) 910 418 473
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Subject Author Posted

Allow internal redirect to URI x, but deny external request for x?

J. Lewis Muir August 30, 2019 01:34PM

Re: Allow internal redirect to URI x, but deny external request for x?

J. Lewis Muir August 30, 2019 02:22PM

Re: Allow internal redirect to URI x, but deny external request for x?

J. Lewis Muir August 30, 2019 02:38PM

Re: Allow internal redirect to URI x, but deny external request for x?

J. Lewis Muir August 30, 2019 03:00PM

Re: Allow internal redirect to URI x, but deny external request for x?

Francis Daly August 30, 2019 04:56PM

Re: Allow internal redirect to URI x, but deny external request for x?

J. Lewis Muir August 30, 2019 06:00PM

Re: Allow internal redirect to URI x, but deny external request for x?

Francis Daly August 30, 2019 07:22PM

Re: Allow internal redirect to URI x, but deny external request for x?

Francis Daly August 31, 2019 03:28AM

Re: Allow internal redirect to URI x, but deny external request for x?

J. Lewis Muir August 31, 2019 11:06AM

Re: Allow internal redirect to URI x, but deny external request for x?

J. Lewis Muir August 31, 2019 10:12AM

Re: Allow internal redirect to URI x, but deny external request for x?

Francis Daly August 31, 2019 04:52PM

Re: Allow internal redirect to URI x, but deny external request for x?

J. Lewis Muir August 31, 2019 05:56PM

Re: Allow internal redirect to URI x, but deny external request for x?

Francis Daly September 02, 2019 05:04PM

Re: Allow internal redirect to URI x, but deny external request for x?

J. Lewis Muir September 03, 2019 01:28PM

Re: Allow internal redirect to URI x, but deny external request for x?

J. Lewis Muir September 03, 2019 05:32PM

Re: Allow internal redirect to URI x, but deny external request for x?

Ian Hobson August 30, 2019 03:02PM

Re: Allow internal redirect to URI x, but deny external request for x?

J. Lewis Muir August 31, 2019 11:32AM

Re: Allow internal redirect to URI x, but deny external request for x?

Francis Daly August 30, 2019 04:34PM

Re: Allow internal redirect to URI x, but deny external request for x?

gariac August 30, 2019 05:24PM

Re: Allow internal redirect to URI x, but deny external request for x?

Ian Hobson August 31, 2019 10:42AM

Re: Allow internal redirect to URI x, but deny external request for x?

j94305 August 30, 2019 06:28PM

Re: Allow internal redirect to URI x, but deny external request for x?

gariac August 31, 2019 03:20PM

Re: Allow internal redirect to URI x, but deny external request for x?

J. Lewis Muir September 03, 2019 11:30PM

Re: Allow internal redirect to URI x, but deny external request for x? Attachments

j94305 September 03, 2019 11:56PM

Re: Allow internal redirect to URI x, but deny external request for x?

J. Lewis Muir September 04, 2019 11:30AM

Re: Allow internal redirect to URI x, but deny external request for x? Attachments

j94305 September 04, 2019 11:44AM

Re: Allow internal redirect to URI x, but deny external request for x?

J. Lewis Muir September 04, 2019 12:32PM

Re: Allow internal redirect to URI x, but deny external request for x?

j94305 September 10, 2019 02:46PM



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