iptables in linux commands

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,

  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

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

Introduced Iptables is an IP packet filtering system integrated with the latest version 3.5 Linux kernel. If a Linux system is connected to an Internet or LAN, a server, or a proxy server that connects LAN and the Internet, the system facilitates

Http://os.51cto.com/art/201107/273443.htm"51CTO exclusive feature" Linux system administrators have been exposed to netfilter/iptables, this is the Linux system comes with a free firewall, the function is very powerful. In the following

Start configurationLet's configure a Filter the firewall of the table .(1) view this institution in IPTABLES the setup situation[Email protected] ~]# Iptables-l–n[Email protected] ~]/etc/sysconfig/iptables[Email protected] ~]/etc/init.d/iptables

Basic iptables commands in Linux Firewall (Firewalld) is an isolation tool that prevents unauthorized access and makes the host more secure. It mainly works on the edge of the network or host, and matches and checks the communication packets in and

Reprinted from: http://jiujiang.blog.sohu.com/97911176.html If you do not know the basic knowledge about iptables, we recommend that you first check it out. Start Configuration Let's configure a filter table firewall. (1) view the settings of