Freaks City

Firewall Management Check firewall status: systemctl status firewalld Start firewall: systemctl start firewalld List all firewall rules and open ports: firewall-cmd --list-all Open a specific port (e.g., 8080/tcp): firewall-cmd --add-port=8080/tcp --permanent Reload firewall to apply changes: firewall-cmd --reload Verify if a port is open: ...

Changing MySQL Port Number on CentOS 7 When deploying MySQL on a CentOS 7 system, sometimes you need to change the default port number. This article explains how to change the port number of a MySQL database on CentOS 7. Steps 1. Connect to the MySQL Database First, connect to MySQL using the command: mysql -u root -p Enter your password to ac ...