Security in Go - Building a Port Scanner

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Security in Go - Building a Port Scanner

Рет қаралды 14,809

4 жыл бұрын

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Пікірлер: 21

@khashe 4 жыл бұрын

Really appreciate these Go tutorials. Good Go content is hard to come by.

@re43p3raod3 2 жыл бұрын

i tired making a good port scanner in rust since im building an AI and was going o add a thing where you can say a target and port scan it but sadly there wasnt any good tutorials for it so your channel and vid cam up. i followed along and i have to say amazing work man, this saved me probobly a good week trying to find a good tutorial! keep doing what your doing man

@JohnLeTerron 4 жыл бұрын

This was great. Have to try this with goroutines to do the checks asynchronously

@colinmsmall 4 жыл бұрын

Thanks for making these

@BabaDee08 4 жыл бұрын

This is Awesome. Thanks man.

@vishwavasudevan6848 4 жыл бұрын

Keep rocking buddy

@xrosspi 4 жыл бұрын

Hey, great video! I've just got a note about the bit at the end. I don't think the UDP part of this code will provide useful results - with TCP, the connection is successful when you send a packet and get an acknowledgement in response; with UDP, the connection is considered successful if you just send the packet (regardless of if anyone actually receives it). Notice that the UDP scan results report all ports as open.

@Tutorialedge 4 жыл бұрын

Thanks! Yeah I was going based on the 5 most commonly used port scanning methods, one of which is UDP. I believe tools like nmap actually send custom UDP packets to each of these ports in order to elicit a response from them which gives them more information which can be used in a pentest. I'm thinking about going more in-depth with this and starting to add more advanced features like this, but it will be built up gradually as I'm still at the beginning of my journey learning about pen-testing!

@JoakimBB 4 жыл бұрын

Black hat go?;) I subbed btw!

@rcoder9507 3 жыл бұрын

performance can be improved using go routines

@CinemaRaps 2 жыл бұрын

Hi, what IDE are you using in this tutorial?

@benalpha2297 2 жыл бұрын

Hello bro! How can I get the body (JSON, plain text,...) of a request from the packets I've got?

@rokettayfas9711 4 жыл бұрын

Hey, What is that font?

@williamwatkins6669 2 жыл бұрын

Why are all the udp opened?

@joelpjphnson2347 Жыл бұрын

All tcp are closed

@joelpjphnson2347 Жыл бұрын

All tcp closed all udp opened

@ygjt76v0----- 3 жыл бұрын

Github repo doesnt work /gone

@codeconcept 10 ай бұрын

Great tutorial thanks :) I tried adding goroutines: the scan becomes almost immediate. func InitialScan(hostname string) []ScanResult { var results []ScanResult wg := sync.WaitGroup{} for i := 1; i < 1024; i++ { wg.Add(1) go func(port int) { fmt.Printf("Go routine created for port %v ", port) results = append(results, ScanPort("tcp", hostname, port)) results = append(results, ScanPort("udp", hostname, port)) fmt.Printf("Go routine %v done ", port) wg.Done() }(i) } wg.Wait() return results } Way faster but the results are displayed in a random order :)