how to configure iptables in linux step by step

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

I. basic iptables configuration 1. view the settings of IPTABLES on the local machine [root @ tp ~] # Iptables-L-nChainINPUT (policyACCEPT) targetprotoptsourcedestinationChainFORWARD (policyACCEPT) targetprotoptsourcedes 1, IptablesBasic

Introduction: A Good article about the Linux firewall iptables configuration, Linux firewall configuration is critical, this involves the server security, security is not absolute, but iptables with good can eliminate most of the gray temptation.

Linux opens ports that allow extranet accessLinux opens ports that allow extranet access Linux uses the following command to open network ports that allow external access: viewing port conditions 1.netstat-ntpl 2.IPTABLES-F rules for clearing all

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

The second version of "step-by-step Linux" will be published soon (with a cover ). The second version of "step-by-step Linux" will be published soon (with a cover) from the first version of "step-by-step Linux", which has been around for nearly six

Transparent firewall (bridge + iptables + squid)-Linux Enterprise Application-Linux server application information. For more information, see the following. Setting up transparent proxy and firewall is a hot topic on the linux platform. There are

IptablesI have been using it all the time. I have some iptables experiences and small summaries to share with you! Linux Kernel has a powerful networking subsystem netfilter. The netfilter sub-system provides stateful or stateless grouping and

Your own example:-A input-s 192.168.28.68-p tcp--dport 1000-j ACCEPT172.168.XX.XX in the Internal network open 1000 this portIn any case, iptables is a need for special care to set up something, in the event that the server is not around you, and

In any case, iptables is a need for special care to set up something, in the event that the server is not around you, and you rushed to set up to prevent SSH, then wait for the boss scold it, hehe ...The content is written to prevent this from