How would you use firewall-cmd to open ports for SMTP packets (TCP and UDP port 25) in the permanent configuration? Verify that these ports are open.
What will be an ideal response?
$ su -c 'firewall-cmd --permanent --add-port=25/tcp'
$ su -c 'firewall-cmd --permanent --add-port=25/udp'
$ su -c 'firewall-cmd --permanent --list-ports'
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Your company hosts multiple virtualized client servers on a single host. Management is considering adding a new host to create a cluster. The new host hardware and operating system will be different from the first host, but the underlying virtualization technology will be compatible. Both hosts will be connected to a shared iSCSI storage solution. What is your company MOST likely trying to
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