iptables add port

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 = ""

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

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

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

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 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

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

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,

Iptables official website: Alibaba IptablesHttp://netfilter.org/ Path of the data packet passing through the firewall Port prohibited Force access to a site Publish an internal network server Intelligent DNS Port ing Access through NAT Save and

Iptables (firewall) and netfilter================================================= recommended blog: http://www.360doc.com/ content/11/0506/09/706976_114731108.shtml# http://drops.wooyun.org/tips/1424netfilter/iptables Introduction: (1) IP