VPS Guide: Your Go-To for VPS, Ubuntu & Command Line Success

Install Firewalld on CentOS

Category: VPS Setup

Set up Firewalld on a CentOS VPS for dynamic firewall management—install with

yum install firewalld -y

start it via

systemctl start firewalld

and enable on boot with

systemctl enable firewalld

Open SSH with

firewall-cmd --add-service=ssh --permanent

HTTP with

firewall-cmd --add-service=http --permanent

and reload with

firewall-cmd --reload

Verify with

firewall-cmd --list-all

—expect \"services: ssh http\" Unlike UFW Firewalld supports runtime changes without restarts—ideal for Vultr CentOS plans hosting MySQL (add firewall-cmd --add-port=3306/tcp) Log activity with firewall-cmd --get-log-denied to debug blocks ensuring FTP and SSH stay secure

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