![]() ![]() Blocking addresses from accessing your server – this is required to prevent brute force attackers trying to brute-force your server’s SSH. ![]() Most of the use-cases boil down to the following: But it’s a essential skill anyone needs to pick up when owning a server. Although for newcomers, learning iptables can prove a bit tricky at first.įor the discerning beginner – using iptables seems like a daunting and lengthy task. Also be cautious when granting anyone the privileges to use it. The iptables tool works as root, so take full precaution when using this tool. It joins its other tools like arptables for ARP and ip6tables for IPv6. However, iptables is just one of the other tools with the -table suffix. This utility program is specifically designed to handle IPv4 addresses. It was developed by Rusty Rusell and the Netfilter Core team during the 90s. Iptables is just like any other Linux tool in the plate. This post will go through simple use-cases of iptables like how to block an IP address. Moreover, this has been used as a firewall since the software allows a system administrator to configure the rules and chains with the tables provided by the Linux kernel system. Iptables is one of the most advanced tools for administering networks in Linux. ![]()
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