Which of the following commands should be run on each of the testing systems to BEST meet this goal?

A Linux administrator is setting up a testing environment and needs to connect to a separate testing server using the production server name. The administrator needs to override the hostname that the DNS is returning in order to use the test environment.

Which of the following commands should be run on each of the testing systems to BEST meet this goal?
A . # hostnamectl set-hostname “192.168.1.100 production.company.com”
B. # grep Ci IP “${ip addr show} production.company.com” > /etc/resolv.conf
C. # ip addr add 192.168.1.100/24 dev eth0 && rndc reload production.company.com
D. # echo “192.168.1.100 production.company.com” >> /etc/hosts

View Answer

Answer: A

Explanation:

Reference: https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/7/html/networking_guide/sec_configuring_host_names_using_ hostnamectl