In toronto VM$,$ find the kernel version and familiarize with anatomy of the Kernel

$2.$ List the kernel packages

$3.$ Kernel directories

a$.$ ll $/$boot

b$.$ ll $/$boot$/$grub$2$

c$.$ ll $/$proc

d$.$ ll $/$lib$/$modules

e$.$ ll $/$lib$/$modules$/3*/$kernel$/$drivers

f$.$ List $/$etc$/$default$/$grub in long list format

g$.$ Change the Grub menu wait time to $60$ secs and take the screenshot of the relevant file where

the directive is changed. Reboot the machine to display $60$ secs time counter. $($SCREENSHOT$)$

h$.$ Find the Redhat release you are currently using $($SCREENSHOT$)$

PART $$ B : systemd, targets, units

$4.$ Find the process whose PID is $1,$

a$.$ List the systemd and init files in long listing format $($SCREENSHOT$)$

b$.$ List the directory where system unit files are located $($SCREENSHOT$)$

c$.$ List at least one unit from each type

d$.$ List all the target files

e$.$ List all the target units

f$.$ Run the command to display the list of files

shown in the screenshot $($SCREENSHOT$)$

g$.$ List the directory where user unit files are located and stored $($SCREENSHOT$)$

h$.$ List all units of type sockets

i$.$ List unit files installed and theirstate

j$.$ List all units that failed to start at the last system reboot time

k$.$ List units required and wanted by the specified unit

$($SCREENSHOT: history $|$grep systemctl$)$

NEST$207$ LAB$-02$

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PART $$ C : Managing Service Units $($SCREENSHOT for all the activities in thissection$)$

$5.$ Using systemctl manage crond.service, find the status of crond.

a$.$ Disable, enable,stop,start, restart crond.service

b$.$ Check if crond.service is started and enabled

$6.$ View, change and configure system target units

a$.$ List the default target unit

b$.$ Currently loaded target units

c$.$ Set multiuser.target as default system target

d$.$ Reboot the system and display multiuser.target as a default target

e$.$ After logging into multiuser.target $,$ change the target back to graphical target

f$.$ Set graphical as default.

i$.$ List ip$6\_$tables, ip$\_$set modules

ii$.$ List modules starting with dm

iii. List modules starting with sys

iv$.$ Display module information ofsyscopyarea

v$.$ Display module information for dm$\_$mod, dm$\_$mirror, dm$\_$log

PART $$ E : USING COMMAND LINE INTERFACE $($SCREENSHOT of all the activities$)$

$8.$ In montreal VM$,$ find the kernel version and nodename

$9.$ List the kernel packages

$10.$ List the service units

$11.$ Find the default target.

$12.$ Check if sshd service will be restarted automatically at reboot time

$13.$ Check the status of sshd service and confirm it is in $$running$$ state

$14.$ Check if NetworkManager service will be restarted automatically at reboot time

$15.$ Check the status of NetworkManager service