proxy server blocking by port

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  • How to Block Free Proxy Access with MikroTik Router

    Proxy Server is an alternative to VPN that breaks blocking firewall of a network. If any user uses free web proxy server with web browser, the web request is processed by the proxy server. So, blocking firewall rule is not applied on the proxy enabled PC. For this, system administrators should be careful enough to block free proxy servers along with blocking VPN access. In my previous article, I discussed how to block VPN access with MikroTik Firewall. In this article, I will discuss simple tricks to block free web proxy access with MikroTik Router. Tricks to Block Web Proxy Server The default proxy server port is 3128 but 8080 port is also popularly used for proxy request. So, if we block 3128 and 8080 ports, 80% of free web proxy server can be blocked. As the proxy port can be changed as the system admin wish, some system admins use other free ports also, even 80 port. In this case, system admin can find the IP address of the popular proxy servers by searching online and block them manually. With these two methods, it is possible to block 99% of the free web proxy access. Method 1: Blocking Free [...]

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    MikroTik Router Web Proxy Configuration |   August 28, 2016

    A Proxy Server is usually placed between users and the internet so that the proxy server can track the activities of any user. Formerly, a proxy server was mainly used for caching the static content of any web server because the internet speed was too slow. So, users would get high speed for browsing as if they were browsing a local server. But nowadays the internet bandwidth has increased. So, the proxy server is usually not used for web caching [...]

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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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    How to Bind Hotspot User to MAC and Static IP in MikroTik |   November 6, 2020

    MikroTik Hotspot is usually a user based Hotspot access controlling system. Internet access and bandwidth can easily be maintained with Hotspot user based system. But sometimes we may require more control on Hotspot system which is not possible only username based system. So, we may need to bind hotspot user to MAC and static IP address. If we can bind hotspot user to static IP address, it is easy to control Hotspot users with MikroTik Router and Firewall. So, in [...]

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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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    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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    Single IP NAT Strategy in MikroTik RouterOS 7 |   September 29, 2015

    MikroTik Router has a lot of features which help to customize network as our requirement. Sometimes, it may be our requirement that we need to allow internet access on per IP. Normally, when we apply masquerade NAT rule in our MikroTik Router, all private IPs will be masqueraded or a network block will be masqueraded. If we do normal masqurade and enable a DHCP Server in our network, we may face a lot of unauthorized access in our network. Because [...]

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    MikroTik PPPoE Server Configuration with freeRADIUS Server |   January 20, 2019

    PPPoE Service is one of the most popular services in MikroTik Router. It is specially used by the local ISP provider for the simplicity of client connection. MikroTik PPPoE Service accepts user or client authentication and authorization both MikroTik local user database and RADIUS user database. RADIUS Server provides an efficient way to manage user authentication, authorization and accounting.  FreeRADIUS is a high performance RADIUS suite that provides user authentication, authorization and accounting facility for a number of network devices [...]

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    MikroTik Hotspot with Bandwidth Limitation and Prepaid Billing System |   January 14, 2018

    Say, you are a network administrator and want to establish a network that will have user bandwidth package management facility with prepaid billing system as well as partner advertisement facility. Then, MikroTik Hotspot Server Configuration with MikroTik User Manager Radius Server will be a wise decision. Because, MikroTik User Manager Radius Server is a user authentication, authorization and accounting application that will give facility to manage user bandwidth package with prepaid billing system. On the other hand, you can easily [...]

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    MikroTik Site to Site GRE Tunnel Configuration with IPsec |   March 26, 2018

    VPN (Virtual Private Network) is a technology that provides a secure tunnel across a public network. A private network user can send and receive data to any remote private network using VPN Tunnel as if his/her network device was directly connected to that private network. MikroTik provides GRE (Generic Routing Encapsulation) tunnel that is used to create a site to site VPN tunnel. GRE tunneling protocol which can encapsulate a wide variety of protocols creating a virtual point-to-point link was [...]

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