Re: Reg: Custom error message at Apache 2.4.25

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Hi!

As Nick mentioned there are a couple of options:

1) https://httpd.apache.org/docs/2.4/mod/mod_substitute.html or https://httpd.apache.org/docs/current/mod/mod_proxy_html.html in case you want to replace some parts of the response coming from the backend with your content.

2) Write your own content output filter to modify the backend response as you wish before flushing it out to the client. I'd suggest to follow https://httpd.apache.org/docs/2.4/mod/mod_lua.html#modifying_buckets if you want to attempt this road since using Lua instead of C is generally easier for people not used to write Apache code.

My personal suggestion is to not use any of the above but to re-think about why you want to force the proxy to do this work. A proxy should be as lightweight as possible and ideally should mask backend failures with pre-defined error pages.

Hope that helps!

Luca

2017-04-17 9:57 GMT+02:00 Velmurugan Dhakshnamoorthy <dvel.hex@xxxxxxxxx>:
Hi Nick,   
yes exactly,  I want the error message produced by back-end weblogic server to be re-written by Apache proxy and then display custom message to user.

Regards, 
Vel 


On Apr 17, 2017 15:34, "Nick Kew" <niq@xxxxxxxxxx> wrote:
On Mon, 2017-04-17 at 09:04 +0800, Velmurugan Dhakshnamoorthy wrote:

>
>         Thanks Luca,  I tried setting proxyerroroverride and error
>         document  in virtual host, however,  the 500 error produced by
>         content server is displayed as it is via Apache proxy. Any
>         further help?

Are you saying you want an error message coming from the backend
but modified by the proxy?  That would imply using a content filter
(such as mod_proxy_html, mod_sed, or mod_substitute) to rewrite
the response from the backend.

--
Nick Kew



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