Linux Firewall

June 6, 2014

{% include JB/setup %}

CentOS

Clear and init

iptables -X
iptables -F
service iptables save
service iptables restart

Disable

sudo service iptables stop

Add rule

iptables -A INPUT -s 101.227.4.21 -j DROP
service iptables status
service iptables save
service iptables restart

Enable

sudo service iptables restart

Ubuntu

Disable

sudo ufw disable

Enable

sudo ufw enable