Free Knowledge Resources


Linux Manual Pages


Free Software * Books

Source Code

Free Media

Linux

upsset.conf(5)

NAME

   upsset.conf - Configuration for Network UPS Tools upsset.cgi

DESCRIPTION

   This file only does one job---it lets you convince upsset.cgi(8) that
   your system's CGI directory is secure. The program will not run until
   this file has been properly defined.

SECURITY REQUIREMENTS

   upsset.cgi(8) allows you to try login name and password combinations.
   There is no rate limiting, as the program shuts down between every
   request. Such is the nature of CGI programs.

   Normally, attackers would not be able to access your upsd(8) server
   directly as it would be protected by the LISTEN directives in your
   upsd.conf(5) file, tcp-wrappers (if available when NUT was built), and
   hopefully local firewall settings in your OS.

   upsset runs on your web server, so upsd will see it as a connection
   from a host on an internal network. It doesn't know that the connection
   is actually coming from someone on the outside. This is why you must
   secure it.

   On Apache, you can use the .htaccess file or put the directives in your
   httpd.conf. It looks something like this, assuming the .htaccess
   method:

       <Files upsset.cgi>
       deny from all
       allow from your.network.addresses
       </Files>

   You will probably have to set "AllowOverride Limit" for this directory
   in your server-level configuration file as well.

   If this doesn't make sense, then stop reading and leave this program
   alone. It's not something you absolutely need to have anyway.

   Assuming you have all this done, and it actually works (test it!), then
   you may add the following directive to this file:

       I_HAVE_SECURED_MY_CGI_DIRECTORY

   If you lie to the program and someone beats on your upsd through your
   web server, don't blame me.

SEE ALSO

   upsset.cgi(8)

   Internet resources:
   The NUT (Network UPS Tools) home page: http://www.networkupstools.org/



Opportunity


Personal Opportunity - Free software gives you access to billions of dollars of software at no cost. Use this software for your business, personal use or to develop a profitable skill. Access to source code provides access to a level of capabilities/information that companies protect though copyrights. Open source is a core component of the Internet and it is available to you. Leverage the billions of dollars in resources and capabilities to build a career, establish a business or change the world. The potential is endless for those who understand the opportunity.

Business Opportunity - Goldman Sachs, IBM and countless large corporations are leveraging open source to reduce costs, develop products and increase their bottom lines. Learn what these companies know about open source and how open source can give you the advantage.


Free Software


Free Software provides computer programs and capabilities at no cost but more importantly, it provides the freedom to run, edit, contribute to, and share the software. The importance of free software is a matter of access, not price. Software at no cost is a benefit but ownership rights to the software and source code is far more significant.

Free Office Software - The Libre Office suite provides top desktop productivity tools for free. This includes, a word processor, spreadsheet, presentation engine, drawing and flowcharting, database and math applications. Libre Office is available for Linux or Windows.


Free Books


The Free Books Library is a collection of thousands of the most popular public domain books in an online readable format. The collection includes great classical literature and more recent works where the U.S. copyright has expired. These books are yours to read and use without restrictions.

Source Code - Want to change a program or know how it works? Open Source provides the source code for its programs so that anyone can use, modify or learn how to write those programs themselves. Visit the GNU source code repositories to download the source.


Education


Study at Harvard, Stanford or MIT - Open edX provides free online courses from Harvard, MIT, Columbia, UC Berkeley and other top Universities. Hundreds of courses for almost all major subjects and course levels. Open edx also offers some paid courses and selected certifications.

Linux Manual Pages - A man or manual page is a form of software documentation found on Linux/Unix operating systems. Topics covered include computer programs (including library and system calls), formal standards and conventions, and even abstract concepts.


birds banner