How to Install and Uninstall libcgi-application-plugin-captcha-perl Package on Ubuntu 16.04 LTS (Xenial Xerus)

Last updated: December 23,2024

1. Install "libcgi-application-plugin-captcha-perl" package

Please follow the guidelines below to install libcgi-application-plugin-captcha-perl on Ubuntu 16.04 LTS (Xenial Xerus)


    
        
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                sudo apt update
            
                    
    
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                sudo apt install
            
                        
                libcgi-application-plugin-captcha-perl
            
                    
    
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2. Uninstall "libcgi-application-plugin-captcha-perl" package

This is a short guide on how to uninstall libcgi-application-plugin-captcha-perl on Ubuntu 16.04 LTS (Xenial Xerus):


    
        
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                sudo apt remove
            
                        
                libcgi-application-plugin-captcha-perl
            
                    
    
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                sudo apt autoclean && sudo apt autoremove
            
                    
    
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3. Information about the libcgi-application-plugin-captcha-perl package on Ubuntu 16.04 LTS (Xenial Xerus)

Package: libcgi-application-plugin-captcha-perl
Priority: optional
Section: universe/perl
Installed-Size: 66
Maintainer: Ubuntu Developers
Original-Maintainer: Debian Perl Group
Architecture: all
Version: 0.04-2
Replaces: libcgi-application-extra-plugin-bundle-perl (<< 0.5)
Depends: perl, libcgi-application-perl, libgd-securityimage-perl, libdata-random-perl
Breaks: libcgi-application-extra-plugin-bundle-perl (<< 0.5)
Filename: pool/universe/libc/libcgi-application-plugin-captcha-perl/libcgi-application-plugin-captcha-perl_0.04-2_all.deb
Size: 11586
MD5sum: e52454053fa4f489bba19a0de76b7eb7
SHA1: 073ac84ba9e1b04e8af6f517ad0caa0e160e5b63
SHA256: c2713a9f8d3adb93f0941bed891d2723c70ddbc55199da5c137b616ab630bbd5
Description-en: module providing CAPTCHA support in CGI::Application
CGI::Application::Plugin::CAPTCHA allows programmers to easily add and
verify CAPTCHAs in their CGI::Application-derived web applications.
A CAPTCHA (or Completely Automated Public Turing Test to Tell Computers
and Humans Apart) is an image with a random string of characters. A user
must successfully enter the random string in order to submit a form. This
is a simple (yet annoying) procedure for humans to complete, but one that is
significantly more difficult for a form-stuffing script to complete without
having to integrate some sort of OCR.
.
CAPTCHAs are not a perfect solution. Any skilled, diligent cracker will
eventually be able to bypass a CAPTCHA, but it should be able to shut down
your average script-kiddie.
.
When a CAPTCHA is created with this module, raw image data is transmitted
from your web application to the client browser. A cookie containing a
checksum is also transmitted with the image. When the client submits their
form for processing (along with their verification of the random string),
captcha_verify() generates a checksum of the verification string the user
entered. If the newly generated checksum matches the checksum found in the
cookie, the CAPTCHA is assumed to have been successfully entered, and the
user is allowed to continue processing their form.
Description-md5: 9f7f31a5d1850782a5b19f7b02df1e7d
Enhances: libcgi-application-perl
Homepage: https://metacpan.org/release/CGI-Application-Plugin-CAPTCHA
Bugs: https://bugs.launchpad.net/ubuntu/+filebug
Origin: Ubuntu