block all internet access except one site

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  • MikroTik Blocking All Websites Except a Few Websites

    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 do reverse work that means we have to create a firewall rule that will block all websites and we have to create another firewall rule that will allow a group of websites through MikroTik Firewall. In this article, I will discuss how to block all websites except a few websites using MikroTik Firewall. MikroTik Firewall Rule to Block All Websites HTTP and HTTPS are responsible to view websites. HTTP works on TCP port 80 and HTTPS works on TCP port 443. So, to block all websites, we have to drop all requests on TCP port 80 and 443 trough MikroTik Firewall. The following steps will show how to drop all requests on TCP port 80 and 443 in MikroTik Firewall. [...]

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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 OpenVPN Configuration on TCP Port 443 with Windows OS |   April 6, 2020

    MikroTik OpenVPN is an amazing VPN solution. IT provides a secure and encrypted VPN tunnel across public network. Unlike PPTP and L2TP VPN Services which are poorly designed and can easily be blocked, OpenVPN can highly be customized and even can be run on so popular TCP Port 443. So, OpenVPN cannot easily be blocked. OpenVPN uses SSL/TLS Certificates. So, OpenVPN Tunnel is a trusted tunnel to send and receive data across public network. OpenVPN is a site to site [...]

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    MikroTik Site to Site OpenVPN Server Setup (RouterOS Client) |   April 9, 2018

    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. MikroTik OpenVPN Server provides a secure and encrypted tunnel across public network for transporting IP traffic using PPP. OpenVPN Server uses SSL Certificates. So, OpenVPN Tunnel is a trusted tunnel to send and receive data [...]

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    MikroTik OpenVPN Setup with Windows Client |   April 2, 2018

    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. MikroTik OpenVPN Server provides a secure and encrypted tunnel across public network for transporting IP traffic using PPP. OpenVPN uses SSL Certificates. So, OpenVPN Tunnel is a trusted tunnel to send and receive data across [...]

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    Mikrotik Router Basic Configuration Using Winbox |   August 24, 2015

    MikroTik is one of the most popular routers. MikroTik Router has a lot of networking services that help to build a stable and smooth network so easily. It is said that any ISP Company or any Enterprise Office cannot go a single day without MikroTik Router. So, system administrators who are not using MikroTik Router yet, they will soon start using MikroTik Router, I think. As a system administrator, I am also using MikroTik Router about 5 years in my network [...]

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    FreeRADIUS Installation and Basic Configuration on CentOS 7 |   November 28, 2018

    FreeRADIUS is a modular, high performance and highly customizable open source RADIUS server. Anyone can use FreeRADIUS without any charge and can customize his RADIUS server according to his organizational requirements. In my previous article, I discussed how to install and configure user manager RADIUS server developed by MikroTik. The main disadvantage of user manager RADIUS server is ‘it is not customizable and not suitable for medium or large organization’. On the other hand, FreeRADIUS is giving facility to customize [...]

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    MikroTik Router Integration and Configuration on GNS3 |   September 19, 2018

    GNS3 is a network simulator software used by hundreds of thousands of network engineers worldwide to emulate, configure, test and troubleshoot virtual and real networks. GNS3 can talk a large number of network vendors including MikroTik. MikroTik introduces Cloud Hosted Router (a RouterOS version) that is used to run as virtual machine and a virtual machine can easily be integrated with GNS3. So, network administrators who are fond of MikroTik Router can now configure, test and troubleshoot their MikroTik network [...]

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    OpenVPN Configuration over Port 443 on Ubuntu Linux |   June 20, 2022

    OpenVPN provides a secure and encrypted VPN tunnel across public network. Unlike PPTP and L2TP VPN Services which can be blocked, OpenVPN can highly be customized and even can be run over so popular TCP Port 443. So, OpenVPN cannot easily be blocked. OpenVPN uses SSL/TLS Certificates. So, OpenVPN Tunnel is a trusted tunnel to send and receive data across public network. OpenVPN Server can easily install on Ubuntu Server. Installing OpenVPN Server on Ubuntu Server, we can connect Windows, [...]

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    How to Assign Static IP Address in Windows OS |   September 16, 2015

    Communication between one computer to another computer or server is established with IP addresses. Without IP address no communication is possible in computer network. An Internet Protocol (IP) Address is a numerical value or label assigned to each electronic device (e.g., computer, smartphone and printer) which uses Internet Protocol for communication. IP can be assigned both dynamically and statically on a IP devices. Dynamic IP is assigned by a DHCP server. If a DHCP server is present in a network, [...]

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