To permanently add NAT to the default zone using firewalld, you would use which command string?

What is the difference between using = and == in a BASH double square bracket if conditional? n (==) checks equality.

Journald differs from traditional logging services such as rsyslogd and syslogd because its logs are _ by default.

What is the purpose of a Mail Transport Agent (MTA)?

What do you need to do before you can perform SSH passwordless logins?

When installing a downloaded package on the RedHat-based distribution manual using RPM, what may you have to do first?

Which firewall is most commonly used on Linux?

What is the right command to save file and exit in Vim?

_____ is a Linux desktop environment'.

To query DNS (Internet domain name) servers, you use the command:

Ubuntu is based on...