Questions[errordocument](server)

I can't get a custom error document to work for 400 Bad Request. It's a CentOS LAMP server.

ErrorDocument 400 /badrdoc.html

I've tried using the above in:

1. Apache http.conf
2. Apache httpd-vhosts.conf (in each vhost)
3. .htaccess in the root htdocs of the site

None of them are working. Apache is serving its default 400 Bad Request page.

Can anyone shed any light on this?

Edit: forgot to mention, I have restarted Apache after changes.

I think what I was asking for was a bit hard to understand, so, I am trying to make it simpler...

I need my server to have a custom 400 error page when it receives a request with a malformed host header.

What I ideally want is ErrorDocument 400 \somepage.php

I can generate 400 errors by visiting a page such as http:\\myserver\bla%bla, and this will go to my script fine. Likewise, I can change the \somepage.php section to Test text and Apache will return that text.

If however, the 400 error is due to a malformed host header, it will work with the text but not the web page.

Can anyone shed any light on this and give a working solution before I loose all my hair?! (already lost quite a bit over this!).

I would like to do a 404 redirect with Apache, and I find several solutions:

1. The .htaccess method. But I don't want to add a .htaccess if not necessary.

2. virtual host method:

<VirtualHost *:80>
    ServerAlias *.example.com
    Redirect 404 /index.html
    ErrorDocument 404 /index.html
</VirtualHost>

I would like to know what's the difference Redirect 404 and ErrorDocument 404?

I have an Apache web server in front of another application server, using Proxy Pass. When the request to application returned error 404, I want to show custom error page from the web server not the one that come from application server. I have tried to setup the ErrorDocument 404 on the virtual host, but it doesn't work. How should I do this? Or this is not possible?

<VirtualHost *:80>
  ServerName servername
  DocumentRoot /somepath/
  ProxyPass / http://localhost:8080/someapp/
  ProxyPassReverse / http://localhost:8080/someapp/

  ErrorDocument 404 /error.html
</VirtualHost>

This doesn't work:

ErrorDocument 401 ../../src/wrong_pwd.php

it renders the path as text, it really prints

../../src/wrong_pwd.php

and doesn't output the real file.

If I put the absolute path it will render the contents of /var/www/home (I don't really know why, maybe it's something in httpd.conf?)

How can I do that?