Firewalls

How to configure ipset – Ubuntu 22.04

ipset is a utility in Linux used for managing sets of IP addresses, ports, or other IP-related objects. It is a powerful tool that can be used to create and manage lists of IP addresses and related data efficiently. ipset is particularly useful for implementing...

How to activate ASAv SMART Licensing

In this tutorial I will provide the step by step guide on how to activate Cisco ASAv Smart License. A common error that happens for beginners when you are unable to reached the licensing server is that you have not configured DNS name server in the ASAv virtual...

Install ASAv in KVM (Ubuntu 22.04)

In this tutorial I will show you how to do the basic configuration to deploy ASAv in KVM in Ubuntu 22.04. There are a few things to take note. Firstly you need to configure the bridge interfaces in Ubuntu depending on how...

Deploy ASAv in VMWare ESXi

ASAv Version: 9.16 In this tutorial I will show you how to install ASAv on VMWare ESXi. Steps Download the ASAv software. You need to have a valid Cisco Account or get a trial from a Registered Cisco Partner. You...

How to create a VLAN in Fortigate 60F

In this quick tutorial, I am going to show you how to create a VLAN in Fortigate 60F To create a VLAN for the lab go to Network -> Interfaces, then select the interface that the VLAN for the tunnel is going to be and click on Create New. Select Interface. Enter a name...

Iptables Basic Configurations – Ubuntu 20.04

Iptables is a very useful linux firewall for protection and learning of how the ip packets transverse the linux system. Although the newer nftables is starting to gain popularity as well as ufw and firewalld due its simplicity as well as add GUI capabilities it is...

IPTABLES Basics Understanding – Ubuntu 20.04

In this tutorial, I will share my learning and understanding of IPTABLES. There are a few things that will help in your understanding and configuration of: . TABLESTables form the basis of the IPTABLES where chains and rules are created base on the tables that the...

Install pfSense on VMWare ESXi 7.0 U2

This is quick tutorial to setup pfSense. I decide to try out pfSense for routing. Was deciding between VyOS and pfSense and since I have used pfSense before, I have decide to try out pfSense. For those who are looking at using vSphere vCenter. This video does not do...

UFW basics – Debian 11

OS: Debian 11 (Bullseye) In this tutorial I will show you how to quickly install ufw in Debian 11. Do take note that if you do not specific the protocol by default both TCP and UDP protocol will be enabled Install ufw in Debian. sudo apt install ufw First lets allow...

UFW basics – Ubuntu

OS: Ubuntu 20.04.3 LTSUFW: 0.36 UFW (uncomplicated firewall) is the default firewall configuration tool that runs on top of iptables, included in Ubuntu distributions. For those that are looking at using the GUI configuration option. You can check out Gufw. By default...

NFTables Beginners Guide

OS: Debian 11 (bullseye)nftables version: 0.9.8 (E.D.S.) For those of you that are familiar with iptables by Netfilter. You might be interested to learn nftables which is available in linux kernels >= 3.13. The good news is it comes with a compatible layer that...