Which of the following commands will resolve this issue?

A Linux user reported the following error after trying to connect to the system remotely:

ssh: connect to host 10.0.1.10 port 22: Resource temporarily unavailable

The Linux systems administrator executed the following commands in the Linux system while trying to diagnose this issue:

Which of the following commands will resolve this issue?
A . firewall-cmd –zone=public –permanent –add-service=22
B. systemctl enable firewalld; systemctl restart firewalld
C. firewall-cmd –zone=public –permanent –add-service=ssh
D. firewall-cmd –zone=public –permanent –add-port=22/udp

View Answer

Answer: C