An administrator manages a Ubuntu server using UFW and needs to allow incoming TCP traffic specifically on port 443. Which command adds this rule?

Aufw allow 443/tcp

Biptables -A INPUT -p tcp --dport 443 -j ACCEPT

Cfirewall-cmd --add-port=443/tcp --permanent

Dnft add rule inet filter input tcp dport 443 accept

Related Questions

Which command displays whether SELinux is currently in Enforcing, Permissive, or Disabled mode?...

easy

Which firewall management tool uses zones to group interfaces and apply different trust levels, and ...

easy

An administrator needs to enforce a minimum password length of 12 characters using PAM on a Linux sy...

medium

An administrator needs to encrypt the file `/etc/app/config.conf` using GPG symmetric encryption so ...

medium

An administrator needs to allow a junior administrator to run only the command `systemctl restart ap...

medium

View all Security questions

Educational Content — CertQnA practice questions are written against official exam objectives, covering the same domains tested on the real exam. All content is original and independent — not actual exam questions, not affiliated with any certification vendor. Learn more about our content policy

Discussion

Be the first to share your understanding of this concept

⚠️ Discussion is for concept clarification only. Do not share or request actual exam questions or answers.