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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    MikroTik Dual WAN PCC Load Balancing with PPPoE Server |   July 5, 2018

    Hi geek, you are here because you are finding a complete MikroTik Dual WAN PCC Load balancing and Link Redundancy solution with PPPoE Server because you have managed two ISP connections and want to provide an uninterrupted internet connection to your clients. You also want to manage your LAN clients with PPPoE Server because it provides a hassle free network administration. MikroTik PCC provides 100% reliable Load Balancing and Link Redundancy network and in my previous article I discussed how [...]

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    Ubuntu RADIUS Server Configuration with freeRADIUS |   September 3, 2022

    Ubuntu Server is one of most popular open-source Linux Server distribution. It is stable and reliable than other Linux distributions. So, enterprise level application can be hosted on Ubuntu Server. Ubuntu RADIUS Server is popularly used for remote authentication and mostly used with the freeRADIUS open source RAIDUS application. freeRADIUS is one of the most popular and powerful AAA (Authorization, Authentication and Accounting) application. Any enterprise (specially ISP company) can use freeRADIUS for AAA solution and can develop billing system. [...]

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    CentOS 7 Network Configuration Using nmtui Tool |   August 27, 2018

    After completing CentOS 7 fresh installation, the first task to a system administrator is to configure its network so that it can communicate to other network devices. In my previous article, I discussed how to install CentOS 7.5 GUI (GNOME Desktop) step by step. If you are a new CentOS 7 user and yet you have not installed CentOS 7.5 on your server machine, feel free to study my previous article and install CentOS 7.5 GNOME Desktop according to that [...]

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    CentOS 7.5 Installation with GUI and LVM Partition |   March 7, 2019

    Red Hat/CentOS Linux is a popular server operating system. Specially who work on mail server, web server, web proxy server, ftp server and file server are so familiar with the Red Hat/CentOS Linux. In my previous article, I discussed how to install CentOS 7.5 Linux step by step with the standard partition. But if you want to work on mail server, web proxy server, ftp server, file server or any other application where disk space changes frequently, the standard partitioning [...]

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    How to Backup and Restore Mozilla Firefox Bookmarks |   August 13, 2015

    Bookmark is one of the most important and useful features in Mozilla Firefox Browser. If Bookmark is lost, Firefox users become very anxiety to recover it. But Mozilla Firefox also provides a tool to backup and restore Bookmarks so easily. So don’t need to be worried. If you know the proper steps about how to take a backup of your bookmark file and how to restore that bookmark backup file again, it will be very beneficial for you. So, this [...]

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    CentOS 7 Partition Management with fdisk Utility |   February 11, 2019

    CentOS or Red Hat Linux is a popular server operating system to the system administrators. Almost all the system admins or IT guys who play with mail server, file server, proxy server and so on are so known with CentOS or Red Hat Linux and cannot go a single day without this operating system. The guys who are also wish to be a system admin should be familiar with CentOS or Red Hat operating system. In my previous article, I [...]

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    CentOS 8 Installation with Screenshots (Server with GUI) |   November 21, 2020

    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, Red Hat Linux is used as enterprise Linux. Red Hat is also known as Red Hat commercial Linux that means Red Hat is a paid service program. CentOS (Community Enterprise Operating System) is another Linux distribution that provides a free and open source, enterprise-class, community-supported server platform functionally compatible with [...]

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    HTTP vs. HTTPS: The Impact Of Using SSL Certificates |   November 29, 2021

    Google and cybersecurity experts continue to make clarion calls to web admins and website owners to switch from HTTP to HTTPS. But is there any difference between the two other than the extra “S” at the end of HTTPS? Not everyone understands the differences between HTTP and HTTPS and why the difference is so significant. In this post, we will discuss the differences between HTTP and HTTPS, the reasons why you need to switch from HTTP to HTTPS, and the [...]

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    Why ISPs Should Embrace TR-069 ACS to Stay Ahead of Competitors |   May 22, 2023

    As the telecommunications industry becomes more competitive, local ISPs need to find ways to stay ahead of larger telcos and offer services that meet the changing demands of their customers. One of the solutions to this challenge is to implement TR-069 ACS server to help streamline network management, reduce costs, and increase efficiency. In this article, we’ll explore why the TR-069 ACS server is essential for medium-sized ISPs to stay competitive in today’s market. We’ll examine the challenges these ISPs [...]

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