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List:       ispman-developers
Subject:    [Ispman-developers] Re: Improve control panel performance with mod_perl (don't)
From:       Wim Kerkhoff <wim () nyetwork ! org>
Date:       2003-12-31 23:30:50
Message-ID: 3FF35C2A.8020204 () nyetwork ! org
[Download RAW message or body]

Ok,

Never mind this...

I tried this for a day or two, but then ran into caching problems (CGI 
scripts showing incorrect information).

See http://perl.apache.org/docs/1.0/guide/porting.html for guidelines on 
coding CGI scripts to run cleanly under mod_perl. See the man page / 
perldoc for 'perlsec' on taint checking of user input.

ISPMan (*.cgi and the files in lib/ and bin/) needs to be modified to 
"use strict", -w, and -T. This for stability, performance, and security 
reasons. There's never a good reason not to use -w and use strict.

I might start making changes locally here.

Wim

Wim Kerkhoff wrote:

> None of the ISPMan docs/howtos/etc I've read so far have mentioned 
> mod_perl, so here's a quick tip. Using mod_perl's Apache::Registry 
> module allows existing CGI scripts to run much faster, since they 
> don't have to be parsed/compiled for every request. This makes a BIG 
> difference! That is, in range of 10-20 times speed improvement (or more)!
>
> If you're on Debian, simply apt-get install libapache-mod-perl, then 
> modify /etc/apache/httpd.conf (and/or /etc/apache-ssl/httpd.conf) to 
> use it. Otherwise, head to http://perl.apache.org for instructions on 
> either compiling mod_perl right into the httpd binary, or as a DSO.
>
> Make sure that mod_perl is being loaded in httpd.conf:
>
> ---------
> LoadModule perl_module /usr/lib/apache/1.3/mod_perl.so
> ---------
>
> Then, modify /etc/ispman/apache.conf:
>
> ----------------------------------------
> Alias /ispman /opt/ispman/htdocs
>
> PerlModule Apache::Registry
>
> <Directory /opt/ispman/htdocs>
>    DirectoryIndex index.html index.cgi
>    <Files *.cgi>
>        Options ExecCGI
>        SetHandler perl-script
>        PerlHandler Apache::Registry
>        AllowOverride None
>    </Files>
> </Directory>
> ----------------------------------------
>
> This is the simplist Apache::Registry config. There are ways of 
> precompiling commonly used perl modules to save more RAM and CPU cycles.
>
> Wim
>



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