If you are more familiar with the UFW firewall instead of using firewalld, first you need to stop the firewalld service: sudo systemctl stop firewalld.service and install UFW on CentOS 9 Stream.
Prerequisites
- CentOS 9 Stream
- sudo privileges
Install UFW on CentOS 9 Stream
Step 1. Update the CentOS 9 system packages.
sudo yum update
Step 2. Install the epel-release.
sudo yum install epel-release
Step 3. Install UFW on CentOS 9.
yum install --enablerepo="epel" ufw
Step 4. Verify the installation.
ufw --version
Step 5. To enable it, run:
sudo ufw enable
Step 6. To see the status, run:
sudo ufw status
Conclusion
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