In Ubuntu we don't have a mechanism to start or stop iptables or we don't have a mechanism to restore iptables after restarting the system. Now we will see how to create a script for start and stop iptables also to make the script to start on system startup. 1. Create a Firewall script  vim /etc/set_iptables.bash echo 1 > ...

Description ufw is stands for Uncomplicated Firewall, this program is for managing a Linux firewall and aims to provide an easy to use interface for the user, as well as support package integration and dynamic-detection of open ports. ufw  is not intended to provide complete firewall functionality via its command interface, but ...

What is Port Forwarding? Port forwarding is a feature of the IPTables system. It allows one computer to forward connections made to it so that another computer can actually process the request. If you want a very simple metaphor you can think of it as mail forwarding. Each computer has a number of addresses called ports, and ...

In Linux there has a number of useful bandwidth monitoring tools such as nload, netwatch, iftop, trafshow, bandwidthd, vnstat. If all you need is a basic overview of your total bandwidth usage, iptables is all you really need. Usually we use iptables for setting firewall and port forwardings, but iptables also provides packet and byte ...