Home/ Questions/Q 6851975
In Process

The Archive Base Latest Questions

Editorial Team
  • 0
Asked: 2026-05-27T01:18:53+00:00

I have the following CGI script that launches a module that creates a PNG

  • 0

I have the following CGI script that launches a module that creates a PNG file and then shows it.

#!/usr/bin/perl

use RRDs;
use CGI;

main:
{
my $cgi = new CGI;
my $filename = $cgi->param('filename');
print "Content-type: text/html\n\n";
my $curr_time = time();
my $start_time = $curr_time-3600;
RRDs::graph("$filename", "--start", "$start_time", "DEF:DiskC=c.rrd:DiskC:AVERAGE", "AREA:DiskC#0000FF");
my $err = RRDs::error();
print "<HTML><HEAD><TITLE>Disk C Utilization</TITLE></HEAD><BODY><H1>Disk C Utilization</H1><BR>$err<img src=\"$filename\"/></BODY></HTML>";
}

The graph method says that can’t create the PNG file. If I run this script in a command like it works fine so I think it’s a matter of permissions. I already set chmod 755 on the cgi-script folder. What do you suggest? Is this related to Apache2 settings?

Share

Leave an answer

You must login to add an answer.

Need An Account,

1 Answer

  1. Editorial Team

    chmod 777 solved my problem!

    • 0