CompTIA Linux+ Powered by Linux Professional Institute Study Guide. Richard Blum

Чтение книги онлайн.

      ● Create email aliases

      ● Configure email forwarding

      ● Knowledge of commonly available MTA programs (postfix, sendmail, qmail, exim) (no configuration)

      ● The following is a partial list of the files, terms, and utilities covered in this objective: ∼/.forward, sendmail emulation layer commands, newaliases, mail, mailq, postfix, sendmail, exim, qmail

      ● Basic CUPS configuration (for local and remote printers)

      ● Manage user print queues

      ● Troubleshoot general printing problems

      ● Add and remove jobs from configured printer queues

      ● The following is a partial list of the files, terms, and utilities covered in this objective: CUPS configuration files, tools and utilities; /etc/cups; lpd legacy interface (lpr, lprm, lpq)

      ● Demonstrate an understanding of network masks and CIDR notation

      ● Knowledge of the differences between private and public “dotted quad” IP addresses

      ● 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)

      ● Knowledge about the differences and major features of UDP, TCP, and ICMP

      ● Knowledge of the major differences between IPv4 and IPV6

      ● Knowledge of the basic features of IPv6

      ● The following is a partial list of the files, terms, and utilities covered in this objective: /etc/services, IPv4, IPv6, subnetting, TCP, UDP, ICMP

      ● Manually and automatically configure network interfaces

      ● Basic TCP/IP host configuration

      ● Setting a default route

      ● The following is a partial list of the files, terms, and utilities covered in this objective: /etc/hostname, /etc/hosts, /etc/nsswitch.conf, ifconfig, ifup, ifdown, ip, route, ping

      ● Manually and automatically configure network interfaces and routing tables to include adding, starting, stopping, restarting, deleting, or reconfiguring network interfaces

      ● Change, view, or configure the routing table and correct an improperly set default route manually

      ● Debug problems associated with the network configuration

      ● The following is a partial list of the files, terms, and utilities covered in this objective: ifconfig, ip, ifup, ifdown, route, host, hostname, dig, netstat, ping, ping6, traceroute, traceroute6, tracepath, tracepath6, netcat

      ● Query remote DNS servers

      ● Configure local name resolution and use remote DNS servers

      ● Modify the order in which name resolution is done

      ● The following is a partial list of the files, terms, and utilities covered in this objective: /etc/hosts, /etc/resolv.conf, /etc/nsswitch.conf, host, dig, getent

      ● Audit a system to find files with the SUID/SGID bit set

      ● Set or change user passwords and password aging information

      ● Be able to use nmap and netstat to discover open ports on a system

      ● Set up limits on user logins, processes, and memory usage

      ● Determine which users have logged in to the system or are currently logged in

      ● Basic sudo configuration and usage

      ● The following is a partial list of the files, terms, and utilities covered in this objective: find, passwd, lsof, nmap, chage, netstat, sudo, /etc/sudoers, su, usermod, ulimit, who, w, last

      ● Awareness of shadow passwords and how they work

      ● Turn off network services not in use

      ● Understand the role of TCP wrappers

      ● The following is a partial list of the files, terms, and utilities covered in this objective: /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