Deck 3

Question 1

TIME SERVICES: ntpd- older, chrony=newer

-Cron order is m h dom m dow

-crontab -e= deletes, -…=deletes with NO fucking prompt, -i=prompt before deletion

Answer 1

-deletes

Question 2

> & redirects standard output AND…

2> redirects STANDARD error

curl or wget download

Answer 2

-standard error

Question 3

lpr submits….jobs

timedatectl shows system time and date and is used to change…

….configures

Answer 3

-print

-timezone

Question 4

name resolution values are in /etc/…file and DNS

etc/resolv.conf contains…servers (8.8.8.8, etc)

Answer 4

-host

-name

Question 5

firewalld-cmd–get-…. =list all zones

–zone=dmz = list rules for dmz zone

–zone=dmz–……=http = opens port 80 in dmz

–…..-port 21/tcp =closes ftp port in dmz

firewall-cmd —reload= updates firewall

Answer 5

-zones

–add service

–remove