[LON-CAPA-admin] Dynamic Plots on Debian
truskell at mines.edu
Wed Jun 25 18:47:08 EDT 2003
I am making progress on this. . .
I did the below, restarted both loncontrol and httpd. Now I get this
when I try to view the image separately:
"http://poisson.mines.edu/cgi-bin/plot.gif?file=truskell_csmTodd_1056580683_2786645_plot.data&output=gif" cannot be displayed, because it contains errors.
Any more ideas? I'd be happy to send you the perl script in plot.gif if
you think it'd help.
On Wed, 2003-06-25 at 12:25, Guy Albertelli II wrote:
> Hi Todd,
> > One problem I've run into is that dynamically generated plots don't seem
> > to get generated/stored properly for me. I just get the little broken
> > image icon, and when I right-click on the image and try to view or
> > download it, not surprisingly I get a Not Found error:
> > The requested URL /cgi-bin/plot.gif was not found on this server.
> > So I went poking for cgi-bin, and found one here: /home/httpd/cgi-bin,
> > as I think I expect. However, it seems to have the following access
> > privileges:
> What is in you httpd.conf for the ScriptAlias?
> It should either not be set in there (and thus use the value
> loncapa_apache.conf sets) or set to
> ScriptAlias /cgi-bin/ "/home/httpd/cgi-bin/"
> It that is correct, can you look for error messages in
> /var/log/apache/error.log that mention plot.gif?
> It most likely would be complaining about not being able to generate
> The easiest solution to solve this is likely (as root):
> 1) apt-get remove libgd-dev gnuplot
> 2) apt-get install libgd-gif1 libgd-gif1-dev
> 3) wget http://aleron.dl.sourceforge.net/sourceforge/gnuplot/gnuplot-3.7.3.tar.gz
> 4) tar xzvf gnuplot-3.7.3.tar.gz
> 5) cd gnuplot-3.7.3
> 6) ./configure --with-gd
> 7) make
> 8) make install
> guy at albertelli.com LON-CAPA Developer 0-7-6-7-
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> LON-CAPA-admin at mail.lon-capa.org
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