conjf - Linux
Overview
conjf is a powerful tool designed to manage and control the firewall configuration on Linux systems. It provides a user-friendly interface for setting up and modifying firewall rules, making it an excellent choice for both novice and experienced users. conjf stands for "configure firewall" and reflects its primary purpose of managing firewall settings.
Syntax
conjf [options] [command] [arguments]
Options/Flags
- -h, –help: Display the help menu and exit.
- -v, –version: Display the version of conjf and exit.
- -f, –file [file_path]: Specify the firewall configuration file to manage. Defaults to "/etc/firewalld/firewalld.conf".
- -r, –reload: Reload the firewall configuration after applying changes.
- -d, –debug: Enable debug mode for troubleshooting.
Commands
- list: List all defined firewall rules.
- add: Add a new firewall rule.
- remove: Remove an existing firewall rule.
- edit: Edit an existing firewall rule.
- enable: Enable a disabled firewall rule.
- disable: Disable an enabled firewall rule.
Examples
List firewall rules
conjf list
Add a new firewall rule
conjf add --port 80 --protocol tcp --action accept
Remove a firewall rule
conjf remove --rule-name "Allow web traffic"
Edit a firewall rule
conjf edit --rule-name "Allow web traffic" --action deny
Reload firewall configuration
conjf -r
Common Issues
- Firewall still not working after making changes: Run
systemctl restart firewalld
to apply the changes. - Invalid rule syntax: Check the syntax of the rule and ensure it matches the expected format.
- Rule not found: Verify that the rule you are trying to modify exists in the configuration file.
Integration
conjf can be integrated with other Linux commands and tools for advanced tasks. For example, it can be combined with the iptables command to create more complex firewall rules.
Related Commands
- firewalld: The primary firewall management tool for Linux systems.
- ufw: A simple and intuitive firewall management utility.
- firewall-cmd: A command-line interface for managing firewall rules.