Managing firewall rules from the command line can sometimes feel messy or overly complex. While tools like iptables, firewalld, and ufw are powerful, they can also be intimidating for beginners or slow down quick rule management.
To simplify this workflow, I built Zerowall CLI — a lightweight command-line tool designed to make firewall management simple, structured, and easy to use.
Today I'm excited to share the stable release: Zerowall v1.1.0.
What is Zerowall?
Zerowall is a CLI tool that helps manage firewall rules and inspect configurations quickly from the terminal.
It provides a simplified interface for common firewall operations like:
- Allowing ports
- Blocking IP addresses
- Inspecting open ports and services
- Managing firewall zones
- Reloading firewall rules
- Making firewall rules persistent
The goal is to provide a clean developer-friendly CLI interface for everyday firewall management tasks.
Key Features
- Zone management support
- Persistent firewall rules
- Firewall reload support
- Structured CLI help system
- Simple allow/block commands
- Inspection commands for ports, services, and zones
Example Usage
Allow a port:
zerowall allow 22
Block an IP address:
zerowall block 192.168.1.100
View firewall configuration:
zerowall --list-all
Inspect a specific zone:
zerowall --zone public --list-all
Apply permanent rules:
zerowall allow 443 --permanent
Current Release
Version: v1.1.0 (Stable)
Included improvements:
- Standardized CLI help output
- Improved command structure
- Zone inspection support
- Persistent firewall rule support
- Cleaner CLI output
Documentation
The project now includes:
- Professional README
- CLI cheatsheet
- Usage guide
- Open source contribution guidelines
Installation
A verified .deb installer is included for easy installation.
Example:
sudo dpkg -i zerowall.deb
Open Source Contributions
Zerowall is an open-source project and contributions are welcome.
If you:
- Find a bug
- Have a feature suggestion
- Want to improve documentation
- Want to contribute code
Feel free to open an Issue or submit a Pull Request.
GitHub Repository
https://github.com/boniyeamincse/zerowallcli.git
Final Thoughts
Zerowall started as a small idea to simplify firewall management from the terminal, and it has now grown into a structured open-source CLI tool.
I'm excited to keep improving it and welcome feedback from the community.
If you're interested in Linux security, CLI tooling, or open-source development, feel free to check it out.
Thanks for reading 🙌
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