cPanel & WHM glossary is helpful for the purpose of gathering more knowledge about those terms that a user of cPanel and WHM needs to know about

1. cPanel & WHM
Glossary

2. Table of Contents
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 Package
 Parent node
 Parked Domain
 Passive Mode (PASV)
 Passive OS Fingerprinting (p0f)
 Perl
 Perl Module
 PHP
 PHP Extension and Application
Repository (PEAR)
 PHP Extension Community Library
(PECL)
 PHP FastCGI Process Manager (PHP-
FPM)
 phpMyAdmin
 Plugin
 Plus addressing
 POP Before SMTP
 Post Office Protocol version 3 (POP3)
 Private Key
 Process ID (PID)
 public_ ftp
 public_ html

3.  A package can refer to a particular set of resource limits that have been assigned
by a hosting provider with regard to the account of a user. Packages can be
created, deleted or even edited by the system administrators in the Packages
section of WHM.
 A package can also refer to a software collection that is meant for distribution and
installation. Many third-party software are provided by cPanel L.L.C.
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Package

4. YELLOW
 A Parent node refers to an authoritative linked node. Tasks are assigned by it to one or more than one child
nodes.
Parent Node
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5. Parked Domain
 A Parked domain is the second domain which is meant to point to a primary
domain. Let us take an example, both “http://www.xyz.net/”
and “http://www.xyz.com/” point to the same website. That is
because “xyz.com” is a parked domain for “xyz.net”.
 One’s website is made available by it, from another domain name. Parked domains
are referred to as aliases in cPanel.
 In the context of domains, it is essential to mention the service of web hosting, which
makes it possible for websites to be accessible over the Internet. Web hosting is
provided by web hosting companies that are often referred to as the “Best
Website Hosting Company” or as the “Top Cloud Hosting Company” or as the “Best
Windows Hosting Company”.
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6. Passive Mode (PASV)
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PASV refers to a mode for FTP connections. Connections from the client’s side are
initiated by it. This mode can be used when a user encounters problems while trying
to connect, through a firewall, to an FTP server.

7. Passive OS Fingerprinting (p0f)
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Passive OS Fingerprinting is a service. A visitor’s operating system and other
information related to email notifications are reported by it. This information aids in
identifying quickly those visitors that trigger alert causing events.

8. Perl
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Professional web hoPerl is a programming language that is meant for web
applications. Perl applications are usually .pm, .pl and .cgi files. Perl modules might
be required by these. Custom code can be written in Perl by third-party
developers.

9. Perl Module
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Perl Module is a software component in the Perl programming language. It is usually reused by
developers. Perl modules can be installed in either of the two interfaces that are being mentioned
below.
The “Perl Modules” interface in cPanel.
cPanel -> Home -> Software -> Perl Modules
The “Install a Perl Module” interface in WHM.
WHM -> Home -> Software -> Install a Perl Module

10. PHP
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PHP is a computer scripting language. It is used by numerous web-based applications. PEAR packages
are required by some PHP applications.

11. PHP Extension and Application Repository
(PEAR)
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PEAR is a repository of PHP code. A user can search for and then install PEAR packages that have PHP
programs which carry out such website functions that are useful. PEAR packages can be installed in one
of the two interfaces that are mentioned below.
The “PHP PEAR Packages” interface in cPanel.
cPanel -> Home -> Software -> PHP PEAR Packages.
The “Module Installers” interface in WHM.
WHM -> Home -> Software -> Module Installers.

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1-800-123 -8156
Whoa! That’s a big number, aren’t
you proud?

13. PHP Extension Community Library
PECL refers to a repository for C extensions that are meant for use in PHP.
To digress, website hosting is a service that is made available by web hosting
companies for the purpose of making websites accessible. It enables one to store the
files of one’s website on the servers of these companies that are frequently referred to
as the “Best Website Hosting Company” or as the “Top Cloud Hosting Company” or
as the “Best Windows Hosting Company”.

14. PHP FastCGI Process Manager (PHP-FPM)
An alternative PHP FastCGI implementation is referred to as PHP-FPM. The
performance of PHP scripts on servers is improved by it.

15. phpMyAdmin
It refers to a graphical application. It lets server administrators manage as well as
manipulate databases that are related to MySQL, over the Internet. This feature can
be accessed by server administrators in the “SQL Services” section in WHM.

16. Plugin
The features or functionality of an interface are modified by a plugin. The plugins for
cPanel, WHM interfaces or Webmail can be written by one.

17. Plus Addressing
Plus addressing is also referred to as subaddressing. A plus character and string are
added by it, after the username of an email account. Messages would be recognized
by the email account and would be placed in the list mailbox. In the event that the
mailbox doesn’t exist, this message is sorted by the account to the inbox mailbox.

18. POP Before SMTP
It is an authentication method that is meant for mail servers. This method lets a user
who has received an email through IMAP or POP3 to send mail for half an hour without
having to re-authenticate through SMTP.
This can be enabled or disabled by WHM users through the “Tweak Settings” interface
in WHM.
WHM -> Home -> Server Configuration -> Tweak Settings.

19. Post Office Protocol version 3 (POP3)
POP3 is an email transfer method that is used widely. Every message in an email
account is copied by POP3 to a local computer. Post that, these messages are deleted
from the mail server. Information is not sent back by the system to the email account
regarding message replies or forwarding.

20. Private Key
A private key is a string of characters that is used by a computer for the purpose of
encoding and decoding those encrypted messages that are received by it. A pair of
keys is used by an encryption scheme, where one is a public key and the other one is a
private key, in order for the creation of a secret code.
When an encryption scheme is used by one, then anyone who sees the message that
was sent by one’s computer or received by it, can’t know the content of such a message
without having access to the private key. One’s confidential information is protected by
a private key. Hence, this key should be stored safely.

21. Process ID (PID)
PID is that unique number which is assigned by one’s server to every individual process
that runs.
One can view a list of the running processes with PIDs in the “Show Current Running
Processes” interface in WHM.
WHM -> Home -> System Health -> Show Current Running Processes.

22. Public_ftp
A public_ftp is a subdirectory that is inside one’s home directory. It contains files that
can be accessed publicly through FTP. Files might be uploaded to this directory by FTP
users. This is that default directory which is accessed by the users when they connect to
one’s site by using an anonymous FTP.

23. Public_HTML
Public_html is a subdirectory that is inside the home directory of a user. Such files are
contained in it that are accessible publicly through the HTTP protocol. Any file or
folders that are in the public_html directory can be viewed by the visitors over the
Internet. This is possible unless a website owner protects these specifically with the aid
of password protection or the .htaccess file.

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