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 Hotspot Auto Login by MAC Address | July 1, 2020
Hotspot is an awesome service in MikroTik Router. MikroTik Hotspot is popularly used in ISP, Hotel, Airport, Coffee Shop, Enterprise office and many other organizations. By default MikroTik Hotspot uses HTTP CHAP login method where user must provide username and password to get internet service. Sometimes we may face that some users are not eager to provide username and password to get internet service or we cannot ask some users to put username and password to get internet due to [...]
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MikroTik Blocking All Websites Except a Few Websites | May 7, 2019
A few days ago, someone asked me how to block all websites except one with MikroTik Firewall. For this, I have decided to discuss about blocking all websites except someone’s whitelist. Unlike firewall devices, MikroTik Firewall by default allows all websites. So, if you need to block any website, you have to create a firewall rule that will block the specific website. Now if we want to block all websites and want to allow a few websites, we have to [...]
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MikroTik Winbox 4: New, Fast and Simple RouterOS GUI | September 16, 2024
MikroTik Winbox 4 is a new era of MikroTik network management. Winbox 4 is a new, fast and simple RouterOS GUI. Winbox 4 has a modern and intuitive Graphical User Interface which is preferred and loved by the MikroTik network engineer to manage RouterOS. MikroTik Winbox 4 is now available for download and can be download for Windows, Linux and macOS. Winbox 4 has new features which was absent in previous Winbox version. In this article, we will see how [...]
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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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Computer Network Topology Outline | September 12, 2017
The first thing that has to study about a network is its physical shape or design layout. It will be extremely important when a wiring scheme and design are selected for a new network installation. Actually Network Topology refers to physical shape or design layout of a network. Network topology determines how different nodes in a network are connected and how these nodes communicate to each other. Types of Computer Network Topology Network really has two shapes or two types [...]
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MikroTik Site to Site SSTP VPN Setup with RouterOS Client | May 14, 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 UserMan RADIUS Server Customers, Users and Routers | November 13, 2017
MikroTik User Manager RADIUS Server is a centralized user authentication and accounting application that gives the ISP Company or network administrator ability to manage MikroTik RouterOS user, PPP user and Hotspot user so smoothly. There are two methods to install MikroTik User Manager RADIUS Server in your network. You can install User Manager Package either on a physical RouterOS or on a dedicated Server Machine or on a Personal Computer where RouterOS is running. How to install and configure User [...]
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MikroTik Configuration with PPPoE WAN Connection | July 18, 2018
MikroTik Router is a popular routing device to any network administrator because of having a lot of network features availability. MikroTik PPPoE Client is a special feature that is used to connect any PPPoE Server. If your ISP provides PPPoE connection, MikroTik Router is able to connect that PPPoE Server using PPPoE Client. In my previous article, I discussed how to configure MikroTik Router with static WAN connection and in this article I will show how to configure MikroTik Router [...]
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Upgrading MikroTik RouterOS and Firmware using Winbox | September 9, 2018
MikroTik RouterOS is in constant development and new features or bug fixes are frequently available, sometimes even monthly. So, it is always recommend upgrading your MikroTik RouterOS to a latest and stable version before beginning any configuration. Sometimes you may find that your production router is required to be upgraded to a new version based on some logical reasons such as: A new feature is available to a new update and you need to implement that new feature. New version [...]
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