CentOS Study Notes-firewall iptables, centosiptablesLinux Firewall: iptables
Iptables is a packet filtering software, and more than 2.6 of the Linux kernel is this software. This Section selects the Linux private dish of laruence-Chapter 9 server
It is necessary to configure the iptables firewall in CentOS. Let's learn how to configure it!Set the firewall in Linux. Take CentOS as an example to open the iptables configuration file:DefaultVi/etc/sysconfig/iptablesRun the/etc/init. d/iptables
Configuring the firewall under CentOS configure NAT forwarding service iptables firewall under CentOSLinux NAT (iptables) configurationCentOS under Configuration iptables1,vim/etc/sysconfig/network You can change the host name
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,
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. 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?
Detailed explanation of iptables configuration in CentOS
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 IPTABLES
Iptables is a common firewall software in Linux, the following describes how to install and clear iptables rules. iptables only opens the specified port, and iptables shields basic applications of iptables, such as specified ip addresses, ip
Linux iptables firewall basic application tutorial, linuxiptables
Iptables is a common firewall software in Linux, the following describes how to install and clear iptables rules. iptables only supports the specified port. iptables shields basic
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