Prerequisitesīefore we begin to the tutorial, the following are the software stack versions in this article: This Linux based firewall is controlled by the program called iptables to handles filtering for IPv4. Securing Linux server is important to protect your data, intellectual property, from the hands of crackers (hackers) or even DDoS ( Denial-of-service attack). In this article, we would give you the next layer for Hardening Server Security using iptables on the OS level, specifically CentOS. The Cloud Raya instance control panel has its own security firewall which based on ports ( TCP, UDP, and ICMP), you can manage it through the customer panel or URL
Read this article to get a better understanding on how to secure your CentOS with iptables.
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