iptables policy

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Iptables Server Security Policy collection

Common ports on Linux serversFtp:20 ssh:22 http:80 telnet:23 rsync:873 svn:3690pop3:110 smtp:25 dns:53 mysql:3306 nfs:111If your iptables basic knowledge is not yet known, it is recommended to take a look first.Start configurationLet's configure a

Common iptables configuration rules

Flood protection: iptables-tnat-FFloodiptables-tnat-IFlood-jDROPiptables-tnat-IFlood-mlimit -- limit3/hour -- limit-burst5-jLOG -- log-prefixFlood-dropped: iptables-tn flood protection: Iptables-T nat-F Flood Iptables-t nat-I Flood-j

Iptables STARTUP script analysis

#! /Bin/sh # iptables start iptables firewall # chkconfig: 2345 08 92 # Description: starts, stops and saves iptables firewall # config:/etc/sysconfig/iptables # config: /etc/sysconfig/iptables-config #### begin init info # provides: iptables #

What is Iptables?

What is Iptables-general Linux technology-Linux technology and application information? For more information, see. Iptables is a packet filtering management tool based on the netfilter architecture. It is mainly used for firewall or transparent

Iptables firewall rule settings

The method for starting and stopping iptables depends on the Linux release version in use. you can view the documentation of the Linux version in use. In RedHat, start iptables with: # serviceiptablesstart. generally, iptables is already included in

Netfilter/iptables Firewall

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

20 Linux firewalls [iptables] application tips [go]

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,

Use netfilter/iptables to configure the firewall for Linux (kernel 2.4.x)

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

Detailed description of IPTABLES configuration in linux

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

Iptables rule configuration Add, delete, and modify commands

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

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