iptables - limit connections

With iptables you can block or allow traffic from specific IP addresses by adding rules to your configuration. The link below shows you how to block all traffic and then add rules to allow it from the IPs you choose:

Whitelist/Blacklist by IP Address

You can also drop traffic from specific IPs:

Drop Traffic from an IP

For our full guide on iptables rules and configurations, click the link below:

Control Network traffic with iptables