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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
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
If you do not know the basic knowledge about IPTABLES, we recommend that you first check it out. configure a filter table firewall. (1) view the settings of IPTABLES on the local machine [root @ tp ~] # Iptables-L-nChainINPUT (policyACCEPT)
How to configure IPTables in Linux
If you do not know the basic knowledge about IPTABLES, we recommend that you first check it out.
To configure a filter table firewall.
1. view the settings of IPTABLES on the local machine.
[Root @ tp ~] # Iptables-
If you do not know the basic knowledge about IPTABLES, we recommend that you first check it out. To configure a filter table firewall. 1. view the settings of IPTABLES on the local machine. [root @ tp ~] # Iptables-L-nChainINPUT (policyACCEPT)
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
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,
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