Midterm CIT 173

all of the above or register/subscribe system, enable repositories, review and track entitlement

tasks that can be performed with Red Hat subscription management tools

/tmp

temporary files

ctrl+K

clear characters from cursor to end of line

pressing Tab

complete commands, file names& options

/dev/vdb3

3rd partition on 2nd virtio-blk disk attached to VM

red hat subscription manager

GUI tool use to register and subscribe a system

T

state represents a process that been stopped or suspended

S

state represents process that is sleeping until some condition is met

/var/log/boot.log

store console messages related to startup

cd bin

change w.d to /bin

cd..

change w.d to the parent of current location

cd../..

change w.d up 2 levels from current location

GID

a # that identifies group at most fundamental level

UID

a # that identifies user at most fundamental level

pwd

absolute path name of current location

option

adjust behavior of command

/root

admin superuser's home directory

multicast

allow one system to send traffic to a special IP address that is received by multiple systems

cd -

always return to working directory used prior to c.w.d.

???*

at least 3 characters in length

"b"

beginning with b

[[: upper:]]

being with upper case letter

rfile1 and rfile2

can be deleted by oper. 1 user but not by oper. 2

lfile2

can be modified by contractor 1 user

rfile2

cannot be read by op 2 user

*b*

containing b

Esc+

copies last argument of previous commands

Netmask

determine how many leading bits in IP address contribute to its network address

/dev/vdb

device file for entire second virtio-blk dish attached to VM

/dev/sdb3

device file name of third partition on second SATA hd.

/dev/sda

device file of entire SATA hd in /dev directory

/var/log

directory that accommodates human-readable syslog files

&>/dev/null

discards all messages normally sent to terminal

history

display list of previous commands

2>/dev/null

display output to terminal and ignore all errors

2001:db8::7::2

does Not represent a valid ipv6 address

/var

dynamic data for database and websites

shell

executes commands as strings

/var/log/maillog

file stores syslog messages related to the mail server

[!b]*

first character not b

primary group

fourth field of /etc/passwd for

physical console

hardware display and keyboard to interact with system

lfile1

have group ownership of consultant 1

/usr

installed software programs and libraries

terminal

interface that display for output and a keyboard for input to shell

ctrl+A

jump to beginning of command line

CTRL+LEFT ARROW

jump to beginning of previous word

/var/log/cron

store messages related to scheduled jobs

ls -al

list files in current location and hidden files

/etc/passwd

location of local user account info

home directory

location of users personal files

/var/log/messages

log file that stores most syslog messages, exception those related to authentication,mail, schedule jobs, and debugging

2 statement of benefits of Linux

modular and powerful script comm. line

virtual console

multiple logical consoles support independent login

command

name of program to run

/run

non-persistent process run-time data

*[[: digit:]]

only containing a #

overview and rules

pages in RH insights console, allows you to display list of rules base on category risk

*b

pattern that only match filenames ending with b

/etc

persistent, system-specific configuration data

fork

process a parent use to duplicate to create new child processes

login shell

program that provides users command in line prompt

df-H

provides overview of the file system mount points and the amount of free spaces available I'm SI units

!string

re-execute a recent command by matching command name

! number

re-execute specific command in history list

Subscription Manager

register a system without using graphical environment

/usr/bin

regular commands and utilities

rfile1

regular file own by op 1 and readable by all users

/var/log/secure

related to security and authentication operations in system

Z

release all of its resources except PID

192.168.1.188

represents a valid ipv4 host IP address

cd

return current user home directory to current directory

two benefits of open source software for user

survive loss of original developer and learn from real-world code and develop more applications

>file 2>/dev/null

saves output to a file and discards error messages

&>file

send both output and errors to a file, creating orb over writing is contents

| tee file

send output to both screen and a file at same time

>>file 2> &1

sends output and errors to same file ensuring existing content is preserved

>file 2>file 2

sends output to a file and send errors to diff. file

;

separate commands on same line

rsyslog

service that sorts and organize syslog messages in files in /var/log

2 ways red hat develop products

sponsor fedora and participate in projects

/etc/group

the location of local group info

128

the size, in bits of an ipv6 address

32

the size, in bits, of an ipv4 address

argument

the target that command operates on

/

top of system file hierarchy

insights-client--register

used to register a client to Redhat Insights

/home

user home directories

prompt

visual cue that shell is waiting for user to type command

cd../../tmp

w.d to /tmp if c.w.d is /home/student

4213 or 3213

when managing Redhat EL using RH insights