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What is a Proxy Server?

Proxy server definition A proxy server is a system or router that provides a gateway between users and the internet. The purpose of a proxy is to prevent cyber attacks and control access to the internet. Proxy Analogy Imagine you want to purchase a computer, but instead, you ask someone else to do it and […]

How to Install a Proxy Server

 Here is a little introduction about the proxy we are going to use. Squid is a caching proxy for the Web supporting HTTP, HTTPS, FTP, and more. It reduces bandwidth and improves response times by caching and reusing frequently-requested web pages. Squid has extensive access controls and makes a great server accelerator. It runs on […]

How to BGP With a Service Provider

This is something you don’t typically see on the Internet. Or perhaps I wasn’t seeking hard enough. When I was learning BGP in 2013, everything in my lab was beautiful. I was able to form neighbors, advertise my networks, do some filtering, etc. But I always wondered. What about in the real world? What is […]

Basic Configuration Palo Alto Firewall

Pre-requisites: Laptop Network wires. Internet connection. Diagram: Palo Alto connections Pre-configuration: 1- Create Zones. (Inside, Outside) or (Trust, Untrust) anything you want. 2- Create a virtual router. 3- Configure an Interface Management Profile to allow ping. (Internally, Externally). 4- Configure Interfaces for (Inside, Outside). 5- Configure Static Routes for the ISP. (Dynamically or Statically). 6- […]

DNS Proxy Using Palo Alto

What is a DNS Proxy: It’s a forward proxy and acts like any other regular proxy. It sits in the middle of your network and forwards requests and replies between DNS clients and servers. Imagine you are sitting in your workstation, and you query Without a proxy, traffic will be sent to your local DNS server. […]