The other day I was working on adding some of the Redhat servers in to production for monitoring. I also got the SNMP community string from the team who is managing the monitoring tools as well. I was so confident that I even informed them that I would configure the SNMP on the server in another 5 mins :). Do … Read More
How to connect your VM to the VPN?
In some of my last blogs, I wrote about how you can install Virtual machines on different hypervisors such as KVM, VMware, VirtualBox, and so on. I use the windows machine as a daily driver Virtual Machine on my Ubuntu machine, having the choice of both operating systems at the same time is great. Can you use a VPN on … Read More
Static IP configuration in Ubuntu using GUI
If you’re using Ubuntu Dekstop on your laptop or a desktop, and one day you decided to change the IP address of your machine from automatic (DHCP) to static configuration. how do you achieve that? In this blog lets discover, How to configure the Static IP in Ubuntu using GUI for both wired and wireless networks. And I am using … Read More
Useful KVM commands
In the last few blogs, I covered how you can install Windows operating systems in a KVM host, be it Centos/Redhat KVM or Ubuntu. 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 … Read More
Nuage NSG bootstrapping – Activation of NSG at the branch – Part 7
Even though we have virtual Nuage NSG, let’s think for a second that we have got a brand new NSG’s at our branch locations and we are going to deploy them as Branch 1 and two like below. 🙂 Creation of NSG in an Enterprise. Different methods of bootstrapping Nuage NSG. What is Auto-bootstrapping NSG bootstrapping using auto bootstrap. Nuage … Read More
How to create Bridge and Vlan’s in Linux – Nuage SD-WAN lab Part – 2
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
Nokia Nuage SD-WAN Lab- Nuage VSD installation steps – Part 3
In my previous blog, I covered the underlay network setup for Nuage in KVM. In this blog, I am going to cover the Nuage VSD installation lab guide and on the next part of the blog, we would go through the installation of the nuage components one by one. What is Nuage VSD (Virtual Service Directory) Nuage VSD or Nokia … Read More
Nuage SD-WAN Controller (VSC) deployment – Part 4
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
Install windows 10 on Ubuntu KVM
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. Since I get a … Read More
4 Easy steps to download the windows 10 ISO image.
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 15.5
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.
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.
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 install ubuntu VM on KVM?
I have a CentOS machine but there are times I would wanted to switch from CentOS to Ubuntu, how do I do that ? You can have a dual boot with both the Centos and the Ubuntu but if you wanted to switch from Centos to Ubuntu then you would have to shut down the Centos and during the boot … Read More
First Hop Redundancy Protocol – HSRP, GLBP and VRRP
Let me start off by showing some real life scenarios here, and then we would understand where do we use HSRP, GLBP and VRRP and its differences then we would 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 … Read More
10 Easy steps to install CentOS 7/8 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
How does DHCP work in the network
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
Creation of Nuage SD-WAN gateway (NSG) in VSD – Part 6
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
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
Enable SSH and basic network tools in Ubuntu
There are few features that are not available out of the box in Ubuntu. One among 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’ And for me, being from the network background I really needed … Read More
5 easy Steps to change the display resolution in Linux
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
How to transfer files from Ubuntu to Windows?
I recently installed Ubuntu on my VMWare workstation pro, and I realized that I need to transfer some files from my windows host machine to the Ubuntu Guest OS and vice versa. There are many ways you could transfer files from linux to windows . Lets look at the simple and easiest ways to transfer files between windows and Ubuntu. … Read More
Step by Step guide to install Nuage SD-WAN lab in KVM – Part 1
You are here because you wanted to learn about Nuage SD-WAN and its lab setup. For me, I don’t like to read more of theory when it comes to learning new technologies. I would instead do a lab first and make some mistakes and learn from them. By the time I finish the lab, I would know more about the … Read More
How I have setup my GNS3 | 10 Easy steps.
I have some of my friends and colleagues who are struggling to get their GNS3 up and running with no issues. After you got everything working and the next day when you come back some error pops up. You are again back to square one trying to figure everything out from the scratch. Best way to configure GNS3 on your … Read More
Configure Cisco router as DNS servers in GNS3 – Step by step
There are many ways you could configure a DNS server. If you are a network engineer and wanted to build a private DNS server for a small office, you would rather set up a router as a DNS server than configuring a Linux or a Windows machine for the same purpose, right ? In this lab, we are going to … Read More
9 Reasons why you should use a VPN
Countries around the world are going above and beyond to protect their citizens from internet threats. One example is that in some countries, which has made it impossible for its citizens to access social media sites. And in some of the western countries, they are using the internet to invade its citizens’ privacy, it only makes sense to protect yourself … Read More
How to configure Netplan network – examples
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
What is an ASN in BGP?- All you need to know about AS numbers
We all have configured Routing protocols and heard about the term ASN/AS numbers (Autonomous system number). However, when it comes to BGP, have you ever wondered what ASN really is and how you can get one?In this blog, let’s answer what ASN is in the BGP routing protocol, and it’s differences and types. A BGP public ASN or AS number … Read More
8 Easy steps to configure Linux (Centos, Rhel, Ubuntu) as NTP servers
If you have a Linux machine (Ubuntu, Centos, Redhat) running in your environment and you would want to configure them as an NTP server it is pretty easy. In our last blog, we took a look at what is NTP and how to configure the public and private NTP servers. In this blog, we are going to configure the Linux … Read More
4 easy step to install CentOS on KVM
CentOS is one of my favorite Linux distros, I have been using them for quite a while for my labs as well as in POC’s. If I have to do some testing in the Redhat production servers I would prefer to use Centos as an alternate as both are identical and configuration looks the same and Centos doesn’t require a … Read More
- Page 1 of 2
- 1
- 2
