![hack router port 53 tcp hack router port 53 tcp](https://pedrolovecomputers.files.wordpress.com/2016/02/n5.png)
Here is an example of ports in action: suppose that on your computer you are running an FTP (File Transfer Protocol) server, a program whose functions include “listening” for requests from remote computers – called “clients” - to deliver (serve) to them specified files that are stored on your computer. Closing unnecessary ports deprives attackers of such useful intelligence, and minimizes the “attack surface” of your system – that is, the number of points at which an attacker might find a vulnerability.
#Hack router port 53 tcp software#
Knowing what software you are running enables a hacker to choose his best weapons for an attack on your system. That knowledge can be exploited by hackers who have vast knowledge of vulnerabilities in specific versions of popular programs. Ideally, an external entity should not even be able to detect a port’s existence, and that sort of “stealth” status is achievable.Īlso, through an open port an external entity can discern what software you are running that uses the port, right down to that software’s version number. It behooves us to keep ports closed when we are not using them. (Don't look for physical ports on your router the ports we're talking about here are implemented in software.) An open port allows such two-way communication, and a closed port does not.Īny open port is a potential security vulnerability, just as any open window or door on your home would be. Simplified for our purposes, a port is a place in your network’s secured perimeter through which programs running on your network can communicate with the outside world, and vice versa. “What is a port?” is a good place to start. So let's batten 'em down again! And when I say hatches, I mean ports. Why do I mention this? You might think you've already battened down your router hatches, but you may still be exposed to attacks.
![hack router port 53 tcp hack router port 53 tcp](https://www.techrepublic.com/a/hub/i/2019/10/24/4207444c-9624-4c5d-b8a9-93596d704dc9/portsa.jpg)
One bit I always remember is this sequence: "Batten down the hatches!" - "I did batten them down!" - "Well, batten them down again! We'll teach those hatches!" I grew up watching Bugs Bunny and other "Looney Tunes" cartoons.