firewall


firewall

Making a CentOS 7 linux host as a router

Linux has the provision to work as a router connecting two networks. In this example we have two NICs in the host. ]# ifconfig …… ens32: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 …… inet 20.10.0.16 netmask 255.255.240.0 broadcast…


firewall

Linux iptables

Netfilter : The actual filtering in a Linux box is done using Netfilter. Iptables : is the tool used to create this filters. Iptables maintain state-full firewall. Ipchains does not maintain state-full firewall The module…