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cPanel Questions and Answers
cPanel Questions and Answers
1) What is the full path to the directory that contains YUM repositories on a cPanel & WHM system?
Ans : /etc/yum.repos.d
2) The most popular, officially recommended update tier to use.
Ans : STABLE
3) Script you can use to install PostgreSQL on a cPanel & WHM server?
Ans : /scripts/installpostgres
4) What does the command ‘hwclock –hctosys’ do?
Ans: Set the System Time from the Hardware Clock.
5) What service uses the mods installed in /opt?
Ans: Apace/PHP
6) Which of the following directories contains the cPanel & WHM installation log?
Ans: /var/log
7) The makecpphp script is no longer supported. PHP pages served through cPanel and WHM interfaces will always use the PHP located in the /usr/local/cpanel/3rdparty/bin directory. If you want to customize the PHP that cPanel uses, you should customize the cpanel-php53 RPM.
Ans: /scripts/makecpphp 11.36
8) Describe the process of enabling IonCube for cPanel’s internal PHP on a server running cPanel 11.36+
Ans: /scripts/phpextensionmanager install IonCubeLoader
9) If you wanted to query DNS for the DKIM record for the domain “example.com”, what command would you use?Please enter your query here…
Ans: dig default._domainkey.example.com TXT
10) If you wanted to query DNS for the SPF record for the domain “example.com”, what command would you use?Please enter your query here…
Ans: dig example.com TXT
11) What service does /usr/local/cpanel/bin/splitlogs change logging for?
Ans: Apache
12) What is the name of the development tool we provide to allow you to interact with cPanel & WHM through your code?
Ans: cPanel API
13) What does the command ‘hwclock –hctosys’ do?
Ans: Sets the system time from the hardware clock
14) If cPanel & WHM was showing a blank page or an error, what is the full path to the log file you should check first?
Ans: /usr/local/apache/logs/error_log
15) In cPanel 11.36+, /scripts/makecpphp has been removed. If you wanted to customize the internal php that cPanel uses, what do you need to customize?
Ans: cpanel-php53
16) What are 3 of the log level types for Tomcat’s mod_jk?
Ans:
debug
info
erro
17) What does ‘/usr/local/cpanel/scripts/perlmods -l’ do?
Ans: show the list
18) What is the file that handles PostgreSQL’s configuration settings on a cPanel & WHM server?
Ans: /var/lib/pgsql/data/postgresql.conf
19) If you wanted to query DNS for the SPF record for the domain “example.com”, what command would you use?
Ans: dig example.com TXT
20) If you wanted to trace and/or kill a running process from WHM, which feature should you use?
Ans: Process Manager
21) Describe the process of enabling IonCube for cPanel’s internal PHP on a server running cPanel 11.36+
Ans:/scripts/phpextensionmanager install IonCubeLoader
22) If you wanted to query DNS for the DKIM record for the domain “example.com”, what command would you use?Please enter your query here…
Ans:dig default._domainkey.example.com TXT
23) If the system log shows repeated connections to TCP port 143, which service is being accessed?
Ans:IMAP
24) On which port does Tomcat listen by default?
Ans:8080
25) In which primary programming language is cPanel & WHM developed?
Ans: perl
26) In what directory are custom DNS Zone Templates stored?
Ans: /var/cpanel/zonetemplates
27) What does the ‘ipcs -s’ command do?
Ans: Shows semaphores
28) In what log file would you find account creation/termination information?
Ans: /var/cpanel/accounting.log
29) What is the name of the script that you should use to update cPanel & WHM licenses?
Ans: /usr/local/cpanel/cpkeyclt
30) cPanel & WHM interfaces require Apache to be installed and working.
Ans: True
31) Which directory contains cPanel & WHM’s error_log file?
Ans: /usr/local/cpanel/logs
32) It is necessary to obtain a license before installing cPanel & WHM?
Ans: False
33) Where does Tomcat store its log files on a cPanel & WHM server?
Ans: /usr/local/jakarta/tomcat/logs
34) What is the name of the script you should use whenever you encounter a “License File Expired” message?
Ans: /usr/local/cpanel/cpkeyclt
35) What file permissions would /usr/bin/gcc have upon disabling WHM’s Compiler Access?
Ans: 750
36) Which of the following files is Pure-FTP’s error log?
Ans: /var/log/messages
37) What port is used to securely log into webmail? Please only include the port number in your answer.
Ans: 2096
38) When compiler access is enabled (default), the permissions for /usr/bin/gcc are:
Ans: -rwxr-xr-x means 355
39) When you disable compiler access, cPanel changes the permissions for /usr/bin/gcc:
Ans: -rwxr-x— means 364
40) What are the four public tiers of cPanel & WHM called?
Ans: CURRENT,RELEASE,EDGE,STABLE
42) Which file does Tweak Settings save its settings?
Ans: /var/cpanel/cpanel.config
43) Which of the following commands will output how many emails are in the system’s Exim queue?
Ans: exim -bpc
44) Which of the following commands will rebuild the RPM database?
Ans: rpm –rebuilddb
45) If your CentOS server was not able to resolve a domain (cpanel.net for example),what file would you check and/or add nameservers to help resolve domains?
Ans: /etc/resolv.conf
46) What is the full path to the hidden file containing the MySQL root password?
Ans: /root/.my.cnf
47) What is the directory /home/virtfs used for?
Ans: Jailshell
48) Which of the following scripts modify images in cPanel & WHM?
Ans: /usr/local/cpanel/bin/rebuild_sprites
49) Which of the following directories contains EasyApache’s log files?
Ans: /usr/local/cpanel/logs/easy/apache
cPanel Interview Question and Answer
50) If the system log shows repeated connections to TCP port 143, which service is being accessed?
Ans: IMAP
51) What is the default secure port for POP3? (Enter a numeric value.)
Ans: 995
52) What is the secure port for IMAP? (Enter a numeric value.)
Ans: 993
53) Where is the Exim Mail Queue located?
Ans: /var/spool/exim/input
54) RNDC
Ans: 953
55) Which of these ports does WHM utilize?
Ans: 2086/2087
55)Which of the following files is Pure-FTP’s error log?
Ans: /var/log/messages
56) What does the strace utility do?
Ans: Traces system calls
57) What is the full path to the script you should run after editing a user file in /var/cpanel/users?
Ans: /usr/local/cpanel/scripts/updateuserdomains
58) Which of the following scripts would you use to create a new cPanel account ?
Ans: /scripts/createacct
59) Which of the following scripts would you use to create a new cPanel account from the command line?
Ans: /usr/local/cpanel/scripts/createacct
60) True or False: cPanel & WHM require Perl to work.
Ans: False
61) What is the secure port for SMTP? (Enter a numeric value.)
Ans: 465
62) Which of the following is the primary daemon responsible for managing antirelayd, eximstats, cpbandwd and chkservd?
Ans: tailwatchd
63) Which is the script used to update Apache & PHP?
Ans: /scripts/easyapache
64) Which of the following commands can you use to securely transfer files between 2 servers.
Ans: scp
65) What script would you use to manually add an email account from command line?
Ans: /scripts/addpop
66) Select all of the webmail clients that are included with cPanel.
Ans:
Roundcube
SquirrelMail
Horde
67) Select the most popular, officially recommended update tier to use.
Ans: Release
68) True or False: You can use SFTP for any FTP account created?
Ans: False
69) True or False: All FTP passwords are stored in /etc/proftpd/
Ans: True
70) Which of the following commands (on a RedHat or CentOS system) will display information about how memory is being used by the server?
Ans: cat /proc/meminfo, free
71) True or False: cPanel & WHM requires SELinux to work.
Ans: False
72) What WHM feature allows you the ability to reconfigure and compile Apache and PHP?
Ans: EasyApache
73) Which of the following commands will allow you to look through text, one page at a time?
Ans: less
74) What is the file that handles PostgreSQL’s configuration settings on a cPanel & WHM server?
Ans: /var/lib/pgsql/data/postgresql.conf
75) Which directory contains cPanel & WHM’s error_log file? Blank page error
Ans: /usr/local/cpanel/logs/error_log
76) Which two FTP servers are available in cPanel & WHM?
Ans: Proftp and pure ftp
77) Which of the following commands will remove or uninstall an RPM?
Ans: rpm –e
78) True or False: Running ‘/usr/local/apache/bin/apachectl -l’ from command line as root will list modules compiled in Apache.
Ans: true
79) How would you force cPanel & WHM to update when using the command line interface? Include the full path in your answer.
Ans:/scripts/upcp –-force
80) What is the default port for SSH? (Enter a numeric port.)
Ans: 22
81) In what directory are account Email forwarders stored or saved?
Ans: /etc/vdomainaliases
82) What port is used to securely log into webmail? Please only include the port ?
Ans:2096
83) In what directory are DNS Zone .db files stored by default?
Ans: /var/named/
84) What cpanel version is running?
Ans: cat /usr/local/cpanel/version
85) Which of the following files is MySQL ‘s Startup error log?
Ans: /var/lib/mysql/hostname.err
86)What is the name of the only supported theme in cPanel?
Ans:x3
87) Which of the following directories contains PostgreSQL data?
Ans: /var/lib/pgsql
88) Where is the Exim configuration file located?
Ans: /etc/exim.conf
89) Which log file stores cPanel & WHM license updates?
Ans:/usr/local/cpanel/logs/license_log
90) What resources are available to pass cPanel Univeristy exams?
Ans:Daily use of Linux and cPanel, docs.cpanel.net
91) What anti-virus software is available for cPanel &WHM?
Ans: ClamAV
92) How would you determine what version of Exim is currently installed?
Ans: exim -bV
93) What is YUM?
Ans:A package manager for Linux
94) Which of the following email applications are not available in Webmail? (Check all that apply.)
Ans:
Smartmail
Gmail
95) Which of the following commands will allow you to look through text, one page at a time?
Ans:less
96) /scripts/installimagemagick has been removed as of 11.36. What command can be used to install the ImageMagick PHP extension?
Ans:
If you require PHP bindings with Apache
/usr/local/bin/pecl install imagick
If you wish to use ImageMagick with Apache,
yum -y install ImageMagick-devel ImageMagick-c++-devel
97) On what default secure port does Apache listen for a connection? (Enter a numeric value.)
Ans: 443
98) In what directory are MySQL databases created and stored?
Ans: /var/lib/mysql
99) On which default port does MySQL listen for a connection?
Ans: 3306
100) For which of the following is mod_mono used?
Ans: Apache ASP.NET Support
101)Which command should you use to make a file immutable? Do not include the full path in your answer.
Ans : chattr +i file
102) What file is used to prevent updates to certain files by cPanel?
Ans : /etc/cpupdate.conf
103) If you wanted to change the shared main IP on your cPanel & WHM machine, what area of WHM would you use to change the IP for all sites and sections?
Ans : Basic cPanel & WHM Setup
Commonly Used Port Numbers
This is a list of commonly used ports, and does not include all possible ports that may be opened on a server.
CPANEL
cPanel 2082
cPanel – SSL 2083
WHM 2086
WHM – SSL 2087
Webmail 2095
Webmail – SSL 2096
E-MAIL
POP3 110
POP3 – SSL 995
IMAP 143
IMAP – SSL 993
SMTP 25
SMTP Alternate 26
SMTP Alternate 587
SMTP – SSL 465
WEB
HTTP 80
SSL 443
FTP 21
FTPs 990
SFTP 22
SFTP Shared/Reseller Servers 2222
Webdisk 2077
Webdisk – SSL 2078
MySQL 3306
MSSQL 1433
SSH 22
SSH Shared/Reseller Servers 2222
