IPTABLES Interview Questions in Linux
Here are
some Linux system administrator Interview questions on Iptables.
Q1: – What is iptables ?
Ans: iptables is a user space
application program that allows a system administrator to configure the tables
provided by the Linux kernel firewall (implemented as different Netfilter
modules) and the chains and rules it stores. Different kernel modules and
programs are currently used for different protocols; iptables applies to IPv4,
ip6tables to IPv6, arptables to ARP, and ebtables to Ethernet frames.
