A systems administrator needs to open the DNS TCP port on a Linux system from network 10.0.0.0/24. Which of the following commands should the administrator use for this task?

The correct answer is C. ufw allow 53/tcp from 10.0.0.0/24. The ufw allow 53/tcp from 10.0.0.0/24 command explicitly opens TCP port 53 (DNS) for connections coming from the 10.0.0.0/24 network, which is the correct way to configure this

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Options

Aufw allow dns/tcp to 10.0.0.0/24
Bufw enable 53/tcp from 10.0.0.0/24
Cufw allow 53/tcp from 10.0.0.0/24
Dufw disable from 10.0.0.0/24

How the community answered

(70 responses)

A
1% (1)
B
7% (5)
C
89% (62)
D
3% (2)

Explanation

The ufw allow 53/tcp from 10.0.0.0/24 command explicitly opens TCP port 53 (DNS) for connections coming from the 10.0.0.0/24 network, which is the correct way to configure this

Topics

#ufw#firewall rules#DNS#port management

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