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#!/bin/sh#------------------------------------------------------------------------------# for debugging use Iptables-v.Iptables= "/sbin/iptables"Ip6tables= "/sbin/ip6tables"Modprobe=
For more information about IPTABLES configuration in linux-general Linux technology-Linux technology and application information, see the following. Simple Application of IPTABLES:
Iptables-a input-p tcp-s 10.1.2.187-j ACCEPT
Add 10.1.2.187 to the
Netfilter/iptables is an IP information packet filtering system integrated with the latest Linux kernel version 2.4.x. If the Linux system is connected to the Internet or LAN, server, or a proxy server connected to the LAN and Internet, the system
Netfilter/iptablesIs an IP information packet filtering system integrated with the latest Linux kernel version 2.4.x. If the Linux system is connected to the Internet or LAN, server, or a proxy server connected to the LAN and Internet, the system
1. Show the status of the firewallRun the following command with root privileges:
# iptables-l-n-v
Parameter description:
-L: Lists the rules.
-V: Displays detailed information. This option displays the interface name,
Linux under Iptables configuration detailed-A rh-firewall-1-input-p tcp-m State--state new-m TCP--dport 24000-j ACCEPT-A rh-firewall-1-input-s 121.10.120.24-p tcp-m tcp--dport 18612-j ACCEPTIf your iptables basic knowledge is not yet known, it is
For this article, we will use iptables user space tool Version 1.2.6a and kernel version 2.4.9.
Linux security and Netfilter/iptablesLinux has become very popular in the IT industry because of its robustness, reliability, flexibility, and
Iptables is an excellent nat+ firewall tool under Linux, I use this tool to configure a flexible and strong firewall +nat system with the lower configuration of traditional PC, small have experience, see the Internet also have a lot of this article,
Introduction: A Good article about the Linux firewall iptables configuration, Linux firewall configuration is critical, this involves the server security, security is not absolute, but iptables with good can eliminate most of the gray temptation.
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