LX0-104 Exam Objectives
Official Exam Objective All-in-One Coverage Chapter No. Page No.
110 Security
110 .3 Securing data with encryption .
Perform basic OpenSSH 2 client
configuration and usage . Using Encryption 18 709
Understand the role of OpenSSH 2 server
host keys . Using Encryption 18 710
Perform basic GnuPG configuration, usage,
and revocation . Using Encryption 18 723
Understand SSH port tunnels
(including X11 tunnels) . Using Encryption 18 715
The following is a partial list of
the files, terms, and utilities used:
Using Encryption 18 709-731
•ssh
•ssh-keygen
•ssh-agent
•ssh-add
•~/ .ssh/id_rsa and id_rsa .pub
•~/ .ssh/id_dsa and id_dsa .pub
•/etc/ssh/ssh_host_rsa_key and ssh_host_rsa_key .pub
•/etc/ssh/ssh_host_dsa_key and ssh_host_dsa_key .pub
•~/ .ssh/authorized_keys
•/etc/ssh_known_hosts
•gpg
•~/ .gnupg/*
LX0-104 Exam Objectives
Official Exam Objective All-in-One Coverage Chapter No. Page No.
110 Security
110 .2 Set up host security .
Awareness of shadow passwords
and how they work . Managing Linux Users and
Groups 9 323
Securing Linux 17 690
Turn off network services not in use . Securing Linux 17 662
Understand the role of TCP wrappers . Securing Linux 17 686
The following is a partial list of
the files, terms, and utilities used:
Managing Linux Users and
Groups 9 648-689
Securing Linux 17
•/etc/nologin
•/etc/passwd
•/etc/shadow
•/etc/xinetd.d/*
•/etc/xinetd.conf
•/etc/inetd.d/*
•/etc/inetd.conf
•/etc/inittab
•/etc/init.d/*
•/etc/hosts.allow
•/etc/hosts.deny
LX0-104 Exam Objectives
Official Exam Objective All-in-One Coverage Chapter No. Page No.
110 Security
110.1 Perform security administration
tasks .
Audit a system to find files with
the suid/sgid bit set . Securing Linux 17 691
Set or change user passwords and
password aging information . Securing Linux 17 651
Being able to use nmap and netstat to
discover open ports on a system . Securing Linux 17 661
Set up limits on user logins, processes,
and memory usage . Securing Linux 17 653
Determine which users have logged
in to the system or are currently
logged in . Securing Linux 17 681
Basic sudo configuration and usage . Securing Linux 17 648
The following is a partial list of
the files, terms, and utilities used:
Securing Linux 17 647-683
•find
•passwd
•fuser
•lsof
•nmap
•chage
•netstat
•sudo
•/etc/sudoers
•su
•usermod
•ulimit
•who, w, last
LX0-104 Exam Objectives
Official Exam Objective All-in-One Coverage Chapter No. Page No.
109 Networking Fundamentals
109.4 Configure client-side DNS .
Query remote DNS servers . Managing Linux Network
Settings 15 576
Configure local name resolution and use
remote DNS servers . Managing Linux Network
Settings 15 551
Modify the order in which name resolution
is done . Managing Linux Network
Settings 15 567
The following is a partial list of
the files, terms, and utilities used:
Managing Linux Network
Settings 15 551-567
•/etc/hosts
•/etc/resolv .conf
•/etc/nsswitch .conf
•Host
•Dig
•getent
LX0-104 Exam Objectives
Official Exam Objective All-in-One Coverage Chapter No. Page No.
109 Networking Fundamentals
109 .3 Basic network troubleshooting .
Manually and automatically configure
network interfaces and routing
tables to include adding,
starting, stopping, restarting,
deleting, or reconfiguring network
interfaces . Managing Linux Network
Settings 15 556-567
Change, view, or configure the
routing table and correct an
improperly set default route
manually .Managing Linux Network
Settings 15 551, 563
Debug problems associated with the
network configuration . Managing Linux Network
Settings 15 569
The following is a partial list of
the files, terms, and utilities used:
Managing Linux Network
Settings 15 554-578
•ifconfig
•ip
•ifup
•ifdown
•route
•host
•hostname
•dig
•netstat
•ping
•ping6
•traceroute
•traceroute6
•tracepath
•tracepath6
•netcat
LX0-104 Exam Objectives
Official Exam Objective All-in-One Coverage Chapter No. Page No.
109 Networking Fundamentals
109 .2 Basic network configuration .
Manually and automatically configure
network interfaces . Managing Linux Network
Settings 15 557
Basic TCP/IP host configuration . Managing Linux Network
Settings 15 556
Setting a default route . Managing Linux Network
Settings 15 551, 563
The following is a partial list of
the files, terms, and utilities used:
Managing Linux Network
Settings 15 556-567
•/etc/hostname
•/etc/hosts
•/etc/nsswitch .conf
•ifconfig
•ifup
•ifdown
•ip
•route
•ping
LX0-104 Exam Objectives
Official Exam Objective All-in-One Coverage Chapter No. Page No.
109 Networking Fundamentals
109 .1 Fundamentals of
Internet protocols . Managing Linux Network
Settings 15 540
Demonstrate an understanding of
network masks and CIDR notation . Managing Linux Network
Settings 15 549
Knowledge of the differences
between private and public
“dotted quad” IP addresses . Managing Linux Network
Settings 15 547
Knowledge about common TCP and
UDP ports (20, 21, 22, 23, 25, 53, 80,
110, 123, 139, 143, 161, 162, 389, 443,
465, 514, 636, 993, 995) . Managing Linux Network
Settings 15 544
Knowledge about the differences and major
features of UDP, TCP, and ICMP . Managing Linux Network
Settings 15 542
Knowledge of the major differences between
IPv4 and IPv6 . Managing Linux Network
Settings 15 552
Knowledge of the basic features of IPv6 . Managing Linux Network
Settings 15 552
The following is a partial list
of the files, terms,
and utilities used: Managing Linux Files and
Directories 4 92
•/etc/services
•IPv4, IPv6 Managing Linux Network
•Subnetting Settings 15 540-550
•TCP, UDP, ICMP
Securing Linux 17 688
LX0-104 Exam Objectives
Official Exam Objective All-in-One Coverage Chapter No. Page No.
108 Essential System Services
108 .4 Manage printers and printing .
Basic CUPS configuration
(for local and remote printers) . Managing Network Services
on Linux 16 594
Manage user print queues . Managing Network Services
on Linux 16 602
Troubleshoot general printing
problems . Managing Network Services
on Linux 16 605
Add and remove jobs from
configured printer queues . Managing Network Services
on Linux 16 603
The following is a partial list of
the files, terms, and utilities used: Managing Network Services
on Linux 16 594-606
•CUPS configuration files, tools,
and utilities
•/etc/cups
•lpd legacy interface (lpr, lprm, lpq)
LX0-104 Exam Objectives
Official Exam Objective All-in-One Coverage Chapter No. Page No.
108 Essential System Services
108 .3 Mail Transfer Agent (MTA)
basics .
Create e-mail aliases . Managing Network Services
on Linux 16 623
Configure e-mail forwarding . Managing Network Services
on Linux 16 623
Knowledge of commonly available
MTA programs (postfix, sendmail,
qmail, exim; no configuration) . Managing Network Services
on Linux 16 618
The following is a partial list of
the files, terms, and utilities used: Managing Network Services
on Linux 16 616-624
•~/ .forward
•sendmail emulation layer commands
•newaliases
•mail
•mailq
•postfix
•sendmail
•exim
•qmail
LX0-104 Exam Objectives
Official Exam Objective All-in-One Coverage Chapter No. Page No.
108 Essential System Services
108 .2 System logging .
Configuration of the syslog daemon . Securing Linux 17 673
Understanding of standard facilities,
priorities, and actions . Securing Linux 17 674
Configuration of logrotate . Securing Linux 17 674
Awareness of rsyslog and syslog-ng . Securing Linux 17 673
The following is a partial list of
the files, terms, and utilities used: Securing Linux 17 672-679
•syslog .conf
•syslogd
•klogd
•/var/log/
•logger
•logrotate
•/etc/logrotate .conf
•/etc/logrotate .d/
•Journalctl
•/etc/systemd/journald.conf
•/var/log/journal/
LX0-104 Exam Objectives
Official Exam Objective All-in-One Coverage Chapter No. Page No.
108 Essential System Services
108 .1 Maintain system time .
Set the system date and time . Managing Network Services
on Linux 16 608
Set the hardware clock to the
correct time in UTC . Managing Network Services
on Linux 16 608
Configure the correct time zone . Installing Linux 5 154
Basic NTP configuration . Managing Network Services
on Linux 16 610
Knowledge of using the pool
.ntp .org service . Managing Network Services
on Linux 16 613
Awareness of the ntpq command . Managing Network Services
on Linux 16 615
The following is a partial list of
the used files, terms, and utilities: Installing Linux 5 154-157
•/usr/share/zoneinfo Managing Network Services
•/etc/timezone on Linux 16 608-615
•/etc/localtime
•/etc/ntp .conf
•date
•hwclock
•ntpd
•ntpdate
•pool .ntp .org
