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Uncomplicated Firewall

1 min read

Firewall for ubuntu and debian

Installation

  1. sudo apt install ufw

Policy Setting

  1. sudo ufw default deny incoming
  2. sudo ufw default allow outgoing
  3. sudo ufw enable

Allowing Ports/Services

You can either allow the service or the port

Allowing ssh

sudo ufw allow ssh OR sudo ufw allow 22

Disabling Firewall

sudo ufw disable

Graph View

Backlinks