How To Install Pfsense Firewall On 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. What is a Pfsense firewall? … 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 VM Snapshots 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 And Configure 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

How To Connect Your VM To The VPN?

Saifudheen SidheeqNetworking1 Comment

In some of my last blogs, I wrote about how you can install Virtual machines on different hypervisors such as KVM, VMware, VirtualBox, etc. I use the windows machine as a daily driver Virtual Machine on my Ubuntu box; having the choice of both operating systems at a time is excellent. And I can switch between them any time I … Read More

Useful KVM commands

Saifudheen SidheeqKVM, VirtualizationLeave a Comment

In the last few blogs, I covered how you can install different Operating systems in a KVM host. But some of you are wondering I got this guest OS installed but how do I manage it. In this blog, let’s take a look at some of the useful KVM command line commands which you can run on the terminal. The … Read More

How to create Bridge and Vlan’s in Linux – Nuage SD-WAN lab Part – 2

Saifudheen SidheeqLinux, Networking, Nuage-SDN, SDNLeave a Comment

nuage underlay network setup

What is the underlay and Overlay network? When it comes to Nuage-SDWAN there are two types of networks that we have to use. First one is called the underlay network and the second one is called the overlay network. The underlay network is nothing but our traditional network which would help us to connect all the network equipment. Once the … Read More

Nuage SD-WAN Controller (VSC) deployment – Part 4

Saifudheen SidheeqNuage-SDN, SDN3 Comments

nuage controller installation

In our last section of the Nuage sdwan lab setup, we had installed VSD, which is the nuage networks VNS management plane. In this section of the lab guide, we would go ahead and install a SD-WAN controller known as VSC (Virtual Service Controller.) Wha is Nuage VSC ? VSC is the Nuage SDN’s controller, which guide or inform the data … Read More

How To Install Windows 10 on Ubuntu KVM?

Saifudheen SidheeqKVM, Linux, Ubuntu, Virtualization3 Comments

I love Ubuntu, especially when I wanted to work with python programming, But I also love windows 10 because of its GUI and the vast variety of software support. In the last blog, I covered how you can install windows 10 on Centos/Redhat KVM. But in this tutorial I going to cover the Debian derivative Ubuntu. And the steps mentioned … Read More

4 Easy steps to download the windows 10 ISO image.

Saifudheen SidheeqVirtualization1 Comment

Many people asked me lately where can they get the windows 10 iso image, and in this blog I am going to show you how you can downloads windows 10 iso image directly from Microsoft. Note : Though you can download the image for free, you will have to use your own license key later on. Prerequisite Good internet connection. … Read More

How To Install Windows 10 In VMware Workstation?

Saifudheen SidheeqVirtualizationLeave a Comment

When you wanted to test something in your machine its better to use a virtual environment. you can play around with the machine and even if you mess up something with the virtual machine, you can still restore them. Since the VM environment and the physical host environment is separate, whatever you do on the VM environment stays at the … Read More

How to find ILO License key already installed – 10 easy Steps.

Saifudheen SidheeqServer2 Comments

Have you ever thought you would wanted to take a backup of the ilo license key and you are unable to find the key using neither ILO CLI console nor ILO GUI ? and Ended up seeing the key like below with just 4 characters of the license shown ? Activation Key xxxxx-xxxxx-xxxxx-xxxxx-ABCDE Then you are not alone, many people … Read More

Setup Hpe comware or MSR in gns3 and Telnet to Putty.

Saifudheen SidheeqNetworkingLeave a Comment

Most of the network engineers whom I know have worked with mainly Cisco gears and not Hpe Comeware devices, Including myself 🙂 And my transition wouldnt been easier if there was no GNS3. To get familiar with the Comware devices, what I have done is.. I have downloaded and installed Hpe VSR to my gns3. After that it was just … Read More

How to configure HSRP/GLBP/VRRP?

Saifudheen SidheeqNetworkingLeave a Comment

Let me start off by showing some real-life scenarios, and then we can understand where do we use HSRP, GLBP, and VRRP and their differences then we will fix the network. Instead of showing some labs right away. So let’s begin. We have Customer A , they are using a simple network topology as below. A router that is connected … Read More

10 Easy steps to install CentOS 7/8 on VMware workstation

Saifudheen SidheeqLinux, Virtualization1 Comment

centos 8 installation on vmware workstation

I have covered few blog posts in the past about installing VM’s such as Centos, Ubuntu, Windows on different hypervisors. However, installation of CentOS 8 on vmware workstation was totally different story. When the CentOS 8 came out I thought let me spin up the CentOS 8 on my VMware workstation. Guess what ?, The installation didn’t succeed. during the … Read More

Creation of Nuage SD-WAN gateway (NSG) in VSD – Part 6

Saifudheen SidheeqNuage-SDN, SDN2 Comments

How you install the traditional network devices?A skilled technician would go on to the site to deploy the router and connect cables on them and make sure everything is working.But how to implement SD-WAN gateway? You cannot install SD-WAN gateway in our case NSG (Network Service Gateway) just like that. You would have to do a process called NSG bootstrapping … Read More

Nuage Proxy server deployment – SDWAN lab -Part 5

Saifudheen SidheeqNuage-SDN, SDNLeave a Comment

nauge proxy server diagram

Yes, we are almost there to get everything up and run.! I am building this lab for you guys and at the same time, writing this post, that way I hope everything would be accurate. In this lab, we are going to install the Nuage proxy server, also known as nuage utility VM, so let’s get started. Why Nuage SD-WAN … Read More

How do I enable SSH on Ubuntu?

Saifudheen SidheeqLinux, UbuntuLeave a Comment

install ssh and basic network utilities in ubuntu

There are few features that are not available out of the box in Ubuntu. One such feature is SSH. If you ever install Ubuntu on your machine and expect the ssh to work by default, it doesn’t. You would get an error message that says ‘The remote system refused the connection’ Also if you try to open winscp on your local machine and … Read More

5 easy Steps to change the display resolution in Linux

Saifudheen SidheeqLinuxLeave a Comment

When you install Redhat Linux enterprise or a CentOS on a server, by default, it takes the display resolution as 800 x 600 or 1024 x 768. Also, when you go to display settings and try to modify the display resolution, you would be disappointed to see that there are no options available to increase the display resolution either from … Read More