20 Iptables Examples For New SysAdminsJan 21, 2016, 10:00 (0 Talkback[s])
(Other stories by Anonymous)
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Linux comes with a host based firewall called Netfilter. This Linux based firewall is controlled by the program called iptables to handles filtering for IPv4, and ip6tables handles filtering for IPv6. I strongly recommend that you first read our quick tutorial that explains how to configure a host-based firewall called Netfilter (iptables) under a CentOS / RHEL / Fedora / Redhat Enterprise Linux server. This post lists most simple iptables solutions required by a new Linux user to secure his or her Linux operating system from intruders.
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