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
1. in fact, the matching extension also needs to be added to the display extension of the-m reference module. the default value is implicit extension. do not use the-m status Detection Package to filter-mstate -- state {NEW, ESTATBLISHED, INVALID,
Firewall: Includes a software firewall (Iptables/netfilter-based packet filtering firewall) and hardware firewall, at the host or network edge of the message through the firewall to detect a certain conditions filtering a series of components.The
1. in fact, the matching extension also needs to be added to the display extension of the-m reference module. the default value is implicit extension. do not use the-m status Detection Package to filter-mstate -- state {NEW, ESTATBLISHED, INVALID,
1. Introduction: CentOS? What is the shortest margin of the dual ship ?? Powerful Fire Prevention ??, It is collectively referred to as iptables, but the more correct name is iptables/netfilter. Iptables is a usage? Which region accounts? ?? Why?
Firewall:Firewalls in the IT domain: a complete set of security isolation tools;Software firewall:Application software processing logic to run the common hardware implementation of the firewall;The most common firewall in Linux is: NetFilter network
One, iptables command help information1.1 Actual test Iptables rules1.1.1 Starting and viewing iptables status/etc/init.d/iptables startIptables-l-N or iptables-l-n-v-XExample Demo 1:[Email protected] ~]# iptables-viptables v1.4.7[[Email protected]~]
The night has been deep, ready to tell the story about NetFilter, writing a little loose, because no draft, a bit with the consciousness of the flow, one go do not know is to boast or self-deprecating, right when a child wrote diary, childhood like
The night has been deep, ready to tell the story about NetFilter, writing a little loose, because no draft, a bit with the consciousness of the flow, one go do not know is to boast or self-deprecating, right when a child wrote diary, childhood like
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