logeshvar

# Run script with sudo privilege
# Install firewalld
yum install firewalld -y

# Stops and masks iptables if already running
systemctl stop iptables
systemctl mask iptables

# Enable and start firewalld
systemctl start firewalld

gsluthra

# Refer to this link to understand below rules: https://wiki.centos.org/HowTos/Network/IPTables

# Set default input policy to ACCEPT
iptables -P INPUT ACCEPT

# Flush all current rules!
iptables -F

# Allow localhost interface
iptables -A INPUT -i lo -j ACCEPT