Where i work we have an environemnt in which many different scripts must have access to different hosts, databases etc etc. We use this method: 
package Attr;

use strict;
use vars qw(%struct);

%struct =
     (
      infomgr => {
                 sid      => 'xxxxxx',
                 username => 'xxxxxx',
                 passwd   => 'xxxxxx',
                },
     )

[download]

This way we can have multiple hosts, databases (in fact any arbitrary data.)

To reference the data in our scripts: 

use Attr ();              # Application wide configuration
use vars qw(%struct);     # Grab the datastructure from the config fil
+e
*struct = \%Attr::struct; # Alias the variable out
..
..
print $self->{config}{infomgr}{sid} # for want of a better example

[download]
We also have the OS accounts locked down tightly as well as permissions on the file. This works quite well for us as we've got a single point for all our configuration data.

In reply to Re: How about a module for "passwords"? by Ryszard
in thread How about a module for "passwords"? by John M. Dlugosz

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.