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Blocking the listing of files in browser.

Posted on 2001-09-06
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Last Modified: 2010-03-04
Hi,

I am using an Apache-Tomcat setup. How do I prevent the listing of files in the browser? For example if I type, http://localhost/projectname/jsp/ in the browser, it should not list the files and directories under the same. How do I go about that?

Thanks,
Brijesh.
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Question by:brijeshkumar
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Author Comment

by:brijeshkumar
ID: 6460206
This problem occurs in both Windows and Linux.

I tried the following 2 options

1)
Under 'Static Interceptor' attribute settings, adding the following attribute: suppress="true" in server.xml

2) Changing
          <init-param>
               <param-name>listings</param-name>
               <param-value>true</param-value>
          </init-param>

to
          <init-param>
               <param-name>listings</param-name>
               <param-value>false</param-value>
          </init-param>


in web.xml

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Expert Comment

by:ahoffmann
ID: 6460756
you need to change your httpd.conf (in /etc/httpd usualy):

IndexOptions StandardIndexing
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Accepted Solution

by:
Zook earned 50 total points
ID: 6461136
A very simple solution is to set in http.conf eg.

DirectoryIndex index.html /index.html

Whenever no local index page (index.html) is found the global one "/index.html" will be shown, thus preventing the generic directory listing.

Of course you can also use a line like this one:
DirectoryIndex index.var index.shtml index.html welcome.htm /noaccess.html

Names will be tried left to right.

cu
Zook
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Author Comment

by:brijeshkumar
ID: 6463057
Hi Zook,

I tried that option. In fact before you replied I had got that option from my friend. But its a workaround  - a crude way of doing it. It works for sure! But if that user knows the file name then he can request it directly. i.e.
http://localhost/projectname/jsp/filename.jsp/html .

Thanks!
Brijesh.

Hi ahoffman,

Your suggestion gave a error "Invalid directory indexing option".

Thanks for your suggestion.
Brijesh.
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Expert Comment

by:Zook
ID: 6463269
Brijesh,

I am afraid I don't understand your problem then.
It's the idea behind a web site to get the URLs that you request, isn't it? So of course, if you know the exact URL you get the file ...!?

What exactly do you want to achive? What do you want to protect/hide from whom?

cu
Zook
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Author Comment

by:brijeshkumar
ID: 6463423
Hi Zook,

It's like this. I am trying to block the directory listing without giving a blank index.html or index.jsp. Something that can be done by making changes in the configuration files. Is that possible?

Regards,
Brijesh.
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Expert Comment

by:ahoffmann
ID: 6464861
just comment out the IndexOptions line.
(NOTE: this option may be in each <Directory> context.
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Expert Comment

by:blackc
ID: 6481101
in your configuration file, find the line contained in <Directory 'whateverthedocumentrootis'>
</Directory>
that has:
Options ...
in it.  then just remove the word "Indexes" from it.  it will then provide a 404 error, document not found page when no page is specified and no index exists.  hope it helps!
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Author Comment

by:brijeshkumar
ID: 6481466
blackc,

I tried that. It didn't work.

Regards,
Brijesh.
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