Scenario
iptables / ACCEPT / TCP 443
Sample command
iptables -A INPUT -p tcp --dport 443 -j ACCEPT
Developer Tools
Firewall Rule Generator — iptables / UFW / firewalld
Configure action, ports, and addresses in a form to generate iptables, UFW, or firewalld commands in your browser. Useful for reviewing allow and block rules before running them on a host.
FirewalliptablesSecurity
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Quick actions
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开发工具
Firewall Rule Generator
Configure action, ports, and addresses in a form to generate iptables, UFW, or firewalld commands in your browser. Useful for reviewing allow and block rules before running them on a host.
规则参数
生成的命令
防火墙命令会随参数自动生成。
Use cases
- Generate allow rules for a new service port
- Draft block rules for suspicious source IPs
- Compare syntax across iptables, UFW, and firewalld
How to use
- Choose firewall dialect and target action
- Fill port, protocol, and address parameters
- Copy the command and review it before running on the host
Example input and output
FAQ
Does this change my server directly?
No. It only outputs command text. You run and own changes on the target machine.
How do the three dialects differ?
The same intent is rendered in common iptables, UFW, or firewalld syntax so you can match your distribution.
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