How To Configure Static Route In Windows?

Saifudheen SidheeqNetworkingLeave a Comment

Have you ever connected to a VPN and realize that you cannot access some of the network resources that you have at home? Maybe you are not able to access Printer in your local network, or something else. And other situation is you have a windows machine that is connected to two different networks and you Are not able to … Read More

How do I install Windows 10 alongside Ubuntu?

Saifudheen SidheeqLinux, UbuntuLeave a Comment

Ubuntu is one of my favorite Linux distro, but I love windows 10 as well. I was using one of my windows machines as my main operating system, as I also needed Ubuntu, I used to virtualize Ubuntu on a VMware workstation. It was going well until I decided to use GNS3 on my windows machine. I was using GNS3 … Read More

How To Enable SSH Access On Linux Mint?

Saifudheen SidheeqLinuxLeave a Comment

In Linux mint the ssh service is not enabled by default, you need to enable the service manually. In this blog, we are going to enable ssh service on the Linux mint and to secure the access we will go ahead and change the default port and also allow specific users to the ssh service. What does SSH stand for … Read More

How To Prioritize Your PC For Wifi On Windows 10?

Saifudheen SidheeqNetworkingLeave a Comment

Most of the home networks nowadays use mainly Wi-Fi, and we rarely get to see the wired connection directly to the machine. By default, when you connect to both the Wi-Fi and the ethernet cable, the windows machine would priorities the ethernet connection over the wifi.If you check the routing table, you should be able to see two default routes, … Read More

How To Set UP Linux Mint On VirtualBox?

Saifudheen SidheeqLinux, VirtualizationLeave a Comment

The Linux mint is getting more popular and it is gaining same popularity as the Ubuntu Desktop once had. Some of the Ubuntu users even started using Linux mint. Though both operating systems are great with respect to usability, it is hard to predict which one is better over the other. That is still a debatable question. Some users love … Read More

How To Install PfSense on VirtualBox?

Saifudheen SidheeqNetworking, pfSense, VirtualizationLeave a Comment

In some of my last blog posts, we covered the installation of pfSense on BareMetal meaning on old physical PC, and different hypervisors such as pfSense on KVM, VMware workstation, and so on. In this blog, we are going to cover how you can install pfSense on a virtual box hypervisor. Since VirtualBox is free and it supports Windows and … Read More

What is SNMP and how it works?

Saifudheen SidheeqNetworkingLeave a Comment

In a big network environment where you have hundreds or even thousands of devices connected, anything can go wrong at any point in time. So as a network or system engineer it’s your responsibility to make sure that all the systems are up and working at all times. In case anything goes wrong you need to find out what is … Read More

How To Extend Windows Storage in KVM ?

Saifudheen SidheeqKVM, Linux, Virtualization2 Comments

extend windows storage in kvm

I have one windows machine that I use as an alternate operating system in my Linux KVM. Recently I noticed that the C drive in my windows got filled up and there is not enough space left to store any more data. If you have a physical box then it is a little difficult, as you have to expand your … Read More

How Do I Turn My Old Computer Into A Firewall?

Saifudheen SidheeqNetworking, pfSenseLeave a Comment

The last blog, we have spun up a pfSense firewall in KVM and made to work as a consumer router replacement. Though it worked fine, the performance was not so great. hence, I decided to build an old spare laptop to work as a pfSense firewall. And when you convert your old pc to the PfSense box, how the performance … Read More

How To Install Pfsense On KVM?

Saifudheen SidheeqKVM, Linux, Networking, pfSenseLeave a Comment

The Pfsense firewall is a good alternative for your home network router. It can even replace the high-end commercial routers at the enterprise network as well. Moreover, it is opensource and free too, Unless you are opting for support from netgate. Can I install pfSense on Ubuntu? The Pfsense is an open-source firewall based on FreeBSD operating system, and since … Read More

How to Setup IPsec Tunnel between Paloalto and PFsense?

Saifudheen SidheeqGns3, Networking, PaloAlto, pfSenseLeave a Comment

In a world where everything connected over the internet, it is quite common that we get to see many enterprise users connect the branch offices via the IPsec VPN.  Moreover, the internet connection is getting cheaper and cheaper now as compared to the dedicated links. That is one of the reasons too the SD-WAN is becoming popular as well. Connecting … Read More

How To Configure Netplan Network? – Examples

Saifudheen SidheeqLinux, Networking, Ubuntu2 Comments

ubuntu netplan configuration

Ever since Ubuntu changed it’s network configuration utility to netplan from the traditional configuration, many of them got so upset. Some of them are very annoyed to the point they even entirely removed the netplan and installed ifupdown back into the system. So is Ubuntu Netplan going to stay ?, if yes shouldn’t we learn how to configure them on … Read More

The DHCP DORA Process Explained – With Packet Capture.

Saifudheen SidheeqNetworkingLeave a Comment


How does DHCP work in the network? Before we answer that question, we need to understand the different ways of configuring the IP addresses.You could use either DHCP or static IP configuration. You might already know the configuration of IP address statically on a computer. It requires you to go to the network properties of the network hosts and manually … Read More

How does the Address Resolution Protocol ARP work?

Saifudheen SidheeqNetworkingLeave a Comment

What is Arp protocol

If you are new to networking you must have heard the term called ARP protocol – address resolution protocol many times.You may be wondering or even confused. Well, what is the ARP protocol and how ARP works in the real world? Before we talk about how arp works we need to know something called a mac address first. What does … Read More

6 Easy Steps To Configure Pfsense Firewall In GNS3.

Saifudheen SidheeqGns3, Networking, pfSenseLeave a Comment

I have worked on multiple firewalls; however, the one firewall that stands out from the crowd is the Pfsense firewall. Let’s take a look at what makes the Pfsense different from other firewalls, and then we will also see how you can install a Pfsense firewall on GNS3 software and start building a basic LAB. Below is the lab topology … Read More

How To Set Static IP On Ubuntu? (GUI and CLI)

Saifudheen SidheeqLinux, Networking, UbuntuLeave a Comment

If you’re using Ubuntu Dekstop or server, and one day you decided to change the IP address of your ubuntu machine from automatic (DHCP) to static configuration. how do you achieve that? If you are using Ubuntu with GUI, it is pretty straightforward, but what if you don’t have GUI and the only option that you have is to configure … Read More

How I have setup my GNS3?| 10 Easy steps.

Saifudheen SidheeqGns3, NetworkingLeave a Comment

step by step install gns3 in windows

I have seen some of my friends and colleagues who are struggling to get their GNS3 up and running with no issues at all. Sometime they call me and say, Saif can you please take a look, it is not working! The problem with GNS3 is that after you get everything working and the next day when you come back … Read More

How To Install And Configure SNMP on Ubuntu?

Saifudheen SidheeqLinux, Networking, UbuntuLeave a Comment

If there is no SNMP protocol, monitoring the Network hosts would have been difficult tasks for the admins. SNMP is a protocol that helps you identify the host availability with many parameters such as network health, hardware resources such as CPU utilization, memory storage, etc. In this blog, let’s discuss how to configure SNMP on an Ubuntu server and specific … Read More

How To Take Snapshot In KVM?

Saifudheen SidheeqKVM, Linux1 Comment

When I started to work with KVM,  I used to ask myself a question How do I backup and restore a KVM VM?, or How do I revert my virtual machine to its old state, when things go wrong while I am making some changes. In the beginning, I used to copy the image from default libvirt default directory /var/log/libvirt/images/vm.qcow2 … Read More

How To Install Palo Alto In Gns3?

Saifudheen SidheeqGns3, Networking, PaloAlto15 Comments

When you wanted to build and practice Paloalto lab, you have got multiple options. You could try physical gears if you can afford one, else virtualize them. Does gns3 support Palo alto? In this blog, we will configure the Paloalto firewall in gns3 with management IP and one public-facing interface connecting to the internet. The Palo alto firewall works perfectly … Read More

How To Install Checkpoint Firewall In Gns3?

Saifudheen SidheeqCheckpoint, Gns3, NetworkingLeave a Comment

You wanted to work with firewall, mainly the checkpoint firewalls, but you don’t know where to begin with and no prior experience with firewalls either, then you are in the right place. Even if you have experience with the firewall but just wanted to spin up the lab in GNS3, that’s fine too. In this blog, I will cover how … Read More

How To Connect GNS3 Devices To The Local Machine?

Saifudheen SidheeqGns3Leave a Comment

I have covered many blogs on how you can install a network device in gns3. However, sometimes the challenge is to get the gns3 devices to talk to the local network or your host PC. If you get that setup, you can access the network device GUI from your local machine browser or ssh from it. Let’s look at how … Read More