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