Iptables Concepts: Difference between revisions
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==iptables== | ==iptables== | ||
<tt>iptables</tt> is a Linux userspace command line tool that manipulates the network packet filtering rules. | <tt>iptables</tt> is a Linux userspace command line tool that manipulates the IPv4 network packet filtering rules. | ||
==ip6tables== | |||
<tt>ip6tables</tt> is the equivalent command line tool that manipulates the IPv6 network packet filtering rules. | |||
=ipchains= | =ipchains= | ||
Revision as of 17:47, 5 January 2016
Internal
netfilter, iptables tool, iptables service and firewalld
netfilter
netfilter is a set of hooks inside the Linux kernel that allows kernel modules to register callback functions with the network stack. A registered callback function is then called for every packet that traverses the respective hook.
iptables
iptables is a Linux userspace command line tool that manipulates the IPv4 network packet filtering rules.
ip6tables
ip6tables is the equivalent command line tool that manipulates the IPv6 network packet filtering rules.