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How To Install Pfsense On KVM?

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 open source and free too. Unless you are opting for support from netgate. Can I install pfSense on Ubuntu? Pfsense is an open-source firewall based on …

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How to Setup IPsec Tunnel between Paloalto and PFsense?

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 …

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How To Configure Palo Alto Site To Site VPN Using IPsec?

You have got the brand new Paloalto firewall installed, and you wanted to know how you can set up an IPsec tunnel between branches using the Paloalto firewall. If I were to configure an IPSec tunnel for the first time, I would configure them in my lab before I configure it in the production. That …

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How DHCP Works ?- DHCP DORA Process With Packet Capture.

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 …

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PfSense IPsec Site to Site VPN Setup – Step by Step.

If you wanted to connect two sites over the internet, the very popular method is to use the IPsec site to site VPN. By default, the IP alone doesn’t provide security, so we need to wrap the IP packet with IPsec to encrypt the traffic inside the IP. Once the IPsec connection is established between …

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How does the Address Resolution Protocol ARP work?

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 …

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

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 …

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How To Install And Configure SNMP on Ubuntu?

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 …

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What Is VXLAN? The Difference Between Overlay And Underlay

When I first heard about VXLAN I asked my colleague, what is VXLAN? And his answer was it is the same as VLAN but with X in the middle :).It is such a protocol that is difficult to comprehend for many. Table of content: What is Vxlan used for? What is the difference between VLAN …

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How to Install Palo Alto in GNS3?

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. In this blog, we will deploy the Paloalto firewall in gns3 with management IP and one public-facing interface connecting to the internet. The Palo alto firewall works perfectly …

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How To Install Checkpoint Firewall In Gns3?

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 …

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Palo Alto Firewall Lab Setup-Allow Inside Users To The Internet

When I started my Paloalto firewall journey, it wasn’t easy. I am from a network routing and switching background, and initially, when I had a chance to work with Palo alto firewall, I was a little hesitant. Eventually, I set up the Palo alto firewall lab and started to practice. Slowly I began to get …

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6 Easy Steps To Configure SNMP on Redhat Linux or CentOS

The other day I was working on adding some of the Redhat servers into production for monitoring. I also got the SNMP community string from the team that is managing the monitoring tools as well. I was very confident that I even informed them that I would configure the SNMP on the server in another …

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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 …

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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. …

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How to configure HSRP/GLBP/VRRP?

The Redundancy protocol is very common in any enterprise network that you look at it. When it comes to providing layer3 redundancy there are multiple protocols available for you to choose from, each provides its own advantages and disadvantages. Based on your requirement, there are redundancy protocols such as HSRP, GLBP, and VRRP, let’s look …

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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 …

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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 …

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What is NTP? Configure Routers as the NTP server

What do you think is the best way for Network hosts to update its clock automatically?The answer to that is to use an NTP server, in this article lets find out what is NTP and its stratum values, and we would also configure Cisco and Comware routers as the NTP public and private servers. Read …

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Best Way To Stream VLC videos On Your Network

The VLC media player is great if you wanted to watch videos on your computer, tablet, or even on your smartphone. And the best part about this media software is that it not only play videos locally it also helps you stream videos over the network, meaning you can make your local machine as a …

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Easy way to connect GNS3 to the Internet on Windows host

The gns3 has evolved from just a simulator for Cisco IOS to a multivendor environment.You can simulate the physical network virtually in gns3 and it works great! Wouldn’t be cool if we can get the host internet access shared to the gns3 that way the devices in gns3 can access the internet and you can …

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What is Border Gateway Protocol (BGP)? All you need to know about BGP.

Most of the network professionals whom I know are very good at configuring and fine-tuning the internal routing protocols, and when I ask them about configuring BGP, they are like, ‘you know what, I am not so confident with it maybe I think I have to read a bit more about it before I spin …

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