Abnormal IP address access

Ultimately, all Internet-facing IP addresses deal with this issue in one way or another. While our Support Team is not able to secure your Linode or perform configuration changes on your behalf you may be able to create a blocklist to either:

• Block specific countries with high rates of malicious activity
• Inversely, only allow connections from countries you from which you expect traffic

For more information on how to do this, check out the following guides:

• how do I block traffic from everywhere except 2 countries? (20522) | Linode Questions
• firewall - iptables to allow traffic from one country only - Unix & Linux Stack Exchange
• linux - Iptables: Block all countries except my own for specific port - Server Fault