where DNS queries can resolve names to IP addresses. Given a DNS server with an IP of 192.168.33.254, type the exact enry that should appear in this file:
To prevent users from seeing who is logged in with the who command, you must remove the world readable bit from the file /var/run/____.
Within a script you create a loop. Following the variable list, the statements to be looped are found between the keywords ____ and done.
In your DNS configuration, MX records are used to point to the _____ server(s) for your domain. (Please specify a single word answer)