ufw
CautionUncomplicated Firewall
ufw status verbose
Ubuntu's friendly firewall with allow/deny syntax. Always allow SSH before enabling.
Examples
ufw allow 22/tcp && ufw enableAllow SSH, then enable
Syntax
ufw [allow|deny|status|enable]
Before you run it
Enabling before allowing SSH locks you out.
Related commands
- iptablesManage iptables firewall
- firewall-cmdManage firewalld (RHEL)
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