iptables allow port

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Iptables firewall automatic setting script

We recommend a good iptables-shell script to free you from the troublesome iptables configuration. I am not sure who the script author is, so I deleted the version declaration. system: centos5.9 script content: viiptables. sh #! /Bin/sh # -----------

Linux firewall iptables Common shell scripts

The code is as follows Copy Code #!/bin/sh#------------------------------------------------------------------------------# for debugging use Iptables-v.Iptables= "/sbin/iptables"Ip6tables= "/sbin/ip6tables"Modprobe=

Iptables advanced application instance

1 iptables good script (reference) Quote: [Root @ server ~] # Cat/opt/iptables. Rule #! /Bin/bash # # The interface that connect Internet Extif = "ppp0" # The inside interface. If you don't have this one # And you must let this be black ex> inif = ""

The Iptables firewall allows only the specified IP connection to specify the port, access the specified Web site

Need to open port 80, specify IP and LAN The following three lines mean: Shut down all 80 ports first. Open 80 ports of IP segment 192.168.1.0/24 end Open IP Segment 211.123.16.123/24 80 port IP Segment # iptables-i input-p TCP--dport 80-j DROP

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 firewall rule configuration and port range

If there are many ports and are sorted, use the port range statement. for example, Port 40100: 40109 indicates port 40100 to Port 40109. if you do not know the basic knowledge of IPTABLES, we recommend that you first check it out. configure a filter

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

Linux system iptables Firewall how to set up

Install iptables Firewall If you do not install iptables you need to install first, CentOS execution: Yum Install Iptables Debian/ubuntu Execution: Apt-get Install Iptables On the VPS on the week nine Iptables set to: *nat:P rerouting ACCEPT [7

Linux iptables port firewall rules

Start Configuration Let's configure a filter table firewall. (1) view the settings of iptables on the local machine[Root @ TP ~] # Iptables-l-N Chain input (Policy accept) Target prot opt source destination chain forward (Policy accept) Target prot

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,

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