graphical network simulator

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  • GNS3 Installation and Configuration Step by Step in Windows

    GNS3 (Graphical Network Simulator) is one of the most popular network simulator software used by hundreds of thousands of network engineers worldwide to emulate, configure, test and troubleshoot virtual and real networks. GNS3 supports a large number of vendors such as MikroTik, Cisco, Juniper, Windows, Linux and many other vendors. GNS3 can be installed on Windows, Linux and MAC Operating System. In this article, I will show how to download and install GNS3 application in Windows Operating System. I will also show how to configure a basic network in GNS3 that will communicate with the real networks. GNS3 Download for Windows Operating System GNS3 is completely free and open source software. So, it can be downloaded from its official website without any charge. In GNS3 official website, the installation file is found for major three operating platforms (Windows, Linux and MAC). The following steps will show how to download GNS3 installation file (.exe) for Windows Operating System. Go to GNS3 official website (gns3.com) from your favorite web browser. You must Sign Up and Login before any download. So, Sign Up and Login with your personal information. Now click on DOWNLOAD menu item. GNS3 current version (now it is 2.1.9) information [...]

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    NGINX and PHP-FPM: A High-Performance Web Hosting Duo |   September 26, 2024

    When it comes to hosting high-performance websites or web applications, Nginx and PHP-FPM are often paired together due to their complementary capabilities. NGINX is a highly efficient web server which works seamlessly with PHP-FPM. PHP-FPM is a FastCGI Process Manager for PHP that is used to deliver fast, reliable, and scalable solutions for dynamic content. What is Nginx? Nginx (pronounced as “engine-ex”) is a lightweight, high-performance web server that is widely used for serving static content, load balancing and reverse [...]

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    DNS Server Configuration on CentOS 7 (Caching DNS with BIND) |   June 24, 2019

    DNS (Domain Name System) Server is an essential part to any computer network. Today web communication cannot imagine without DNS Server. DNS is a client server protocol where DNS Client requests for the domain name resolution and DNS Server response on it. Every network should have a DNS Server because local DNS Server improves network performance by caching DNS information and serving DNS request locally. DNS Server can be configured either Windows or Linux operating system. In this article, I [...]

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    Ubuntu Server 20.04 Installation with LVM |   May 28, 2021

    Linux is a free and open source operating system developed by Linus Torvalds on September 17, 1991. It is mainly used as server environment. A lot of Linux distributions are present today. Among them, Ubuntu is one of the best stable Linux distributions. Ubuntu has both Desktop and Server distribution. Ubuntu Server is a high performance and stable enterprise Linux distribution and it can be easily used in production. Ubuntu Server has both community-support and well documentation. So, IT guys can use Ubuntu [...]

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    MikroTik SSTP VPN Server Configuration with Windows 10 |   April 27, 2020

    VPN (Virtual Private Network) technology provides a secure and encrypted tunnel across a public network. So, a private network user can send and receive data to any remote private network through VPN tunnel as if his/her network device was directly connected to that private network. Secure Socket Tunneling Protocol (SSTP) transports PPP tunnel over TLS channel. SSTP uses TLS channel over TCP port 443. So, SSTP VPN can virtually pass through all firewalls and proxy servers. Because of using TLS [...]

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    MikroTik Hotspot Free Trial Internet Setup |   August 14, 2020

    MikroTik Hotspot is an awesome Hotspot internet solution. It has a lot of features to customize any Hotspot service. Sometimes we may require providing free trial internet in a Hotspot service. MikroTik Hotspot provides easy solution to provide free trial internet to the new user before going to paid version. In my previous article I discussed how to configure MikroTik Hotspot using Winbox. In this article I will discuss how to configure free trial internet in MikroTik Hotspot Server. Free [...]

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    Turn Computer into Wi-Fi Hotspot |   September 17, 2015

    Internet Connection Sharing is an awesome feature in windows operating system. Using this feature, you can turn your computer which has wireless network card integrated into Wi-Fi hotspot and share your internet connection with your friends or family members. Generally, each laptop has a wireless network card integrated by default. So, if you are a laptop user, you can turn your laptop into Wi-Fi hotspot so easily. If you are a Desktop user, you can also turn your desktop as [...]

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    FreeRADIUS User Group Management with MySQL |   January 3, 2019

    FreeRADIUS is a high performance RADIUS Server. A number of network devices can be used with freeRADIUS Server as a RADIUS Client including MikroTik Router. As a modular RADIUS suite, freeRADIUS accepts MySQL module to query user authentication and authorization and to store accounting data. In my previous article, I discussed how to install and configure FreeRADIUS MySQL module. I also discussed how to authenticate MikroTik Login with freeRADIUS MySQL user. In this article, we will talk about how to [...]

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    Smart Camp WiFi Management with MikroTik and GalaxyRAD API |   March 31, 2026

    In today’s digital-first world, reliable internet access is essential—even in environments like worker camps, training camps, educational programs, and large events. However, managing WiFi in such dynamic setups can be complex. That’s where GalaxyRAD API-powered applications step in—delivering a fully automated, scalable, and intelligent Camp WiFi Management Solution with MikroTik Hotspot. 🌐 Why Camp WiFi Needs a Smart Solution Traditional Hotspot WiFi systems fail in camp environments due to: Frequent user onboarding & offboarding from camp to camp Limited bandwidth [...]

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    Enable F8 Menu to Enter Safe Mode in Windows 8 & 10 |   August 27, 2015

    Windows is the most popular operating system in the world. No computer user can go a single day without windows operating system. As windows is a popular operating system, it has a lot of viruses also. But windows provides various tools for removing these viruses. For removing any unwanted program, windows safe mode is a best option. A popular way to open windows safe mode is windows Advanced Boot Options. Advanced Boot Options provides different run levels for windows users so [...]

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