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From Josiane BERNILLON <Josiane.Bernil...@ens-lsh.fr>
Subject Re: [users@httpd] Re: sending .jpg on another box
Date Tue, 03 Oct 2006 09:25:34 GMT
Mike - EMAIL IGNORED a écrit :
> On Mon, 02 Oct 2006 18:35:03 +0200, Josiane BERNILLON wrote:
>
>   
>> Mike - EMAIL IGNORED a écrit :
>>     
>>> I have two boxes on my intranet each running
>>> Apache 2.0 under FC4.  My Linksys firewall directs
>>> port 80 to BoxA.  Both boxes are also running
>>> iptables, including libipq.
>>>
>>> BoxA has my html tree. I have a number of .jpg
>>> files, some as large as 10 meg.  The various
>>> directories containing the .html files contain
>>> soft links to the directories, in another tree
>>> containing, the .jpg files.
>>>
>>> All this is operated by a complex CGI, written in
>>> C++.  Most of the .html files the client sees are
>>> generated by this CGI.
>>>
>>> I would like to move the .jpg tree to BoxB,
>>> transparent to the client. In broad terms, how
>>> should I do this?  What should I read to get the
>>> particulars?
>>>
>>> Thanks for your help.
>>>
>>> Mike.
>>>
>>>
>>>
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>>>   
>>>       
>> Maybe one way to this :
>>
>> - let's say jour .jpg files are in /../......./imgs/ on BoxA
>> on BoxB:
>> - create a /../.../imgs2/ on BoxB
>> - copy your .jpg into .../img2/
>> - start an NFS server on BoxB (I don't work on FC4, but if you don't 
>> know anytaing about NFS, you can  look here 
>> <http://www.vanemery.com/Linux/NFSv4/NFSv4-no-rpcsec.html>
>> - share .../img2/ for BoxA
>>
>> on BoxA
>> - create a .../.../imgs3
>> - mount .../img2/ on ..../img3/
>> - change your soft links in the html tree to .../img3/
>>
>> No problem for users.
>>
>> If they could wait some minutes, and if you have some BACKUP of your .jpg
>> on BoxA
>> - remove all .jpg from .../imgs/...
>> - mount .../img2/ on /imgs/
>> then you don't need to change soft links.
>>
>> jobern
>>
>>     
> [...]
>
> This looks like a good possibility.  It also appears
> from Apache documentation that ProxyPassReverse under
> virtual host might be able to accomplish what I need.
> Is this true?  If so, how do the two methods compare
> with regard to efficiency and security?
>
> Thanks,
> Mike.
>   
I think it's true, but I never use it and could't help you on this topic.
I just give you a quick way to free space on your BoxA disk without 
reconfiguring your Apaches servers....
--
Josiane

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