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port

1. Secure Shell(SSH) : 22
2. HTTP : 80
3. HTTPS : 443 ## Apache2
4. Start our apache : $ sudo service apache2 start
5. Check the state of apache : $ sudo service apache2 status
6. Stop our apache : $ sudo service apache2 stop
7. Restart our apache : $ sudo service apache2 restart
8. Start the apache service at boot : $ sudo systemctl enable apache2
9. Stop apache service at boot : $ sudo systemctl disable apache2 # Firewall
10. Open the firewall : $ sudo ufw enable
11. Check firewall status : $ sudo ufw status Status: active Status: inactive
12. Default allow all of the connect pass : $ sudo ufw default allow
13. Check incoming/outgoing status : $ sudo ufw status verbose
14. ufw allow ssh(22 port) : $ sudo ufw allow ssh
15. ufw allow http(80 port) : $ sudo ufw allow http
16. Remove http connect : $ sudo ufw delete allow http/tcp # Mariadb(Mysql)
17. Setup our Mariadb : $ sudo mysql_secure_installation
18. Start our server : $ sudo systemctl start mariadb
19. Check Mariadb status : $ sudo systemctl status mariadb
20. Login database : $ mysql -u root -p ## Get in mysql database
21. Show the database : > show databases;
22. Get in the database : > use 'database name'
23. Show the data : > show tables;

by CHSHS WU,ZHEN-RONG