UFW Uncomplicated Firewall Part I

UFW: uncomplicated firewall Install UFW systemd upstart Arch Linux: Debian/Ubuntu Use UFW to Manage Firewall Rules: Set Default Rules sudo ufw default allow outgoing (computer) =] (internet) sudo ufw default deny incoming (internet) =] (computer) Caution: Add Rules By port By name TCp/UDP sudo ufw allow 80/tcp sudo ufw allow http/tcp sudo ufw allow 1725/udp Advanced Rules Ip address: sudo ufw allow from 192.168.1.4 specific subnet sudo ufw allow from 192.168.1.4/24 allow specific ip and port combination: sudo ufw allow from 192.168.1.4 to any port 22 proto tcp Remove Rules sudo ufw delete allow 80 Edit UFW's Configuration Files Before rules: /etc/ufw/before.rules /etc/ufw/before6.rules After rules: /etc/ufw/after.rules /etc/ufw/after6.rules Other: /etc/default/ufw UFW Status Enable the Firewall sudo ufw enable sudo ufw disable Logging sudo ufw loggin on view log: /var/log/ufw Some important info: IN: OUT: MAC: SRC: DST: LEN: TTL: PROTO: SPT: DPT: WINDOW: SYN URGP: ___________ I like to study together. If you think like me please contact as below. Thanks for your watching. Contact info: email: [email protected] www: mydeveloper.info