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🌐 IP Address Blocklist

Malicious IP addresses detected through our global honeypot network. Use these feeds to block attackers at your firewall or integrate into your security tools.

Available IP Feeds

Updated hourly - Most recent feeds first

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How to Use IP Blocklists

Block IPs with iptables:

#!/bin/bash
# Download and block malicious IPs

curl -s https://www.check-the-sum.fr/feeds/ip/all_ip.txt -o /tmp/malicious_ips.txt

while IFS= read -r ip; do
  iptables -A INPUT -s "$ip" -j DROP
done < /tmp/malicious_ips.txt

echo "Blocked $(wc -l < /tmp/malicious_ips.txt) malicious IPs"

Integration with Firewall:

# UFW (Uncomplicated Firewall)
wget https://www.check-the-sum.fr/feeds/ip/all_ip.txt
while read ip; do sudo ufw deny from $ip; done < all_ip.txt

# pfSense / OPNsense
# Import as URL Table Alias in Firewall > Aliases
# URL: https://www.check-the-sum.fr/feeds/ip/all_ip.txt