How to Install and Uninstall libcgi-application-plugin-captcha-perl Package on Ubuntu 21.10 (Impish Indri)

Last updated: May 13,2024

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

Here is a brief guide to show you how to install libcgi-application-plugin-captcha-perl on Ubuntu 21.10 (Impish Indri)


    
        
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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

Please follow the steps below to uninstall libcgi-application-plugin-captcha-perl on Ubuntu 21.10 (Impish Indri):


    
        
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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 21.10 (Impish Indri)

Package: libcgi-application-plugin-captcha-perl
Architecture: all
Version: 0.04-2.1
Priority: optional
Section: universe/perl
Origin: Ubuntu
Maintainer: Ubuntu Developers
Original-Maintainer: Debian Perl Group
Bugs: https://bugs.launchpad.net/ubuntu/+filebug
Installed-Size: 31
Depends: perl:any, libcgi-application-perl, libgd-securityimage-perl, libdata-random-perl
Breaks: libcgi-application-extra-plugin-bundle-perl (<< 0.5)
Replaces: libcgi-application-extra-plugin-bundle-perl (<< 0.5)
Enhances: libcgi-application-perl
Filename: pool/universe/libc/libcgi-application-plugin-captcha-perl/libcgi-application-plugin-captcha-perl_0.04-2.1_all.deb
Size: 11752
MD5sum: de4c582d9abf7f23bbd4e9b92aaffcee
SHA1: 7ac307e8cff6ebea3a192bf8c1adba7e1513e025
SHA256: 4075c60c419cc4eb7c6968f4ae90eca645127ecb190bb05f82b71e6d4b4ee4fa
SHA512: 9d2d2d7e304958c0d0cdc4f882c7844632c3cc7a667b783e4f170dd35c047d2b41ee9987b3854ee18d62f511bda24bf105e54c07070c9d60612d173a27f7afc4
Homepage: https://metacpan.org/release/CGI-Application-Plugin-CAPTCHA
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