Public IP vs. Private IP and Port Forwarding (Explained by Example)

In this video we will explain how you can author a web application, host it on your laptop then expose it through the internet via port forwarding. We will explain the difference between private ip in Local Area network and Public IP, we will explain how routers have two IP addresses public and private IP.
We will also do a live edit on my router configuration to do a port forwarding of port 8080 to my local laptop and even access that through my phone.
-Hussein
Stay Awesome!
Hussein

[@keithscull8288]

This is what we need! Most sources explain concepts like this with a Networking context and so as developers not only does it not click, but we have no idea what relevance it has to the applications we develop. You explain conceptually and even make a point to show an example with a real world app while omitting "unnecessary" networking terms. And if we wanted to expand to lower level networking aspects we have a better chance with that now as well ..

[@philomath6190]

You explained it better than my college instructor.

[@szilardfineascovasa6144]

This channel is a treasure trove. Finally getting to understand misc. stuff I just heard thrown around by network or sys-admins. Thanks, Hussein. And the humor makes everything even better!

[@andresbonelli]

By far the most pristine explanation on this topic. And at last someone with enough balls to show the public IP on a tutorial because when you blur things out on a tutorial it gets confusing, for someone who still doesnt fully understand the topic!!

[@sukiyang3474]

It's like you have the magic powering of explaining things in the most understandable way.

[@brianjosephblake]

This is EXCELLENT content and very well explained. Thank you, Hussein!

[@kallolchakrabarti8210]

I dont have any knowledge. Surprisingly, I understood the lecture. You are a genius bro. God bless.

[@ryarod]

There is an online multiplayer game that is now in the hands of the fans to resurrect. In order to do that I need to be able to hold public ip addresses and port my routers. This video marks the first I've seen in my quest to roll up my sleeves, get to work, and bring Primal Carnage back! I look forward to learning the content this video's title alludes to, among much else.

[@AsrarSheikh_IN]

One of the greatest explanation video on KZbin 👍👍👍

[@gouravkhator]

After so many years, I have got the full idea of default gateway and public ip

[@atibyte]

The best explanation on port forwarding, thank you.

[@norah5073]

I love your way of how you explain the point. Thank you so much for your efforts and time

[@stevelamparas]

Well explained in just 9 40 minutes. Good job

[@sayan883]

Great Content Hussein.Pease continue the good work.!!

[@namahshrestha3226]

This guy needs to have more subs. Totally worth the watch.

[@rshaikh05]

excellent. crystal clear now. jazakAllahu khair Hussein.

[@harshitgangwar4500]

Awesome video man. I am so grateful I found your channel.

[@hamzanasir1590]

You are great SIR. Keep making videos on software engineering 👍👍👍

[@SuperFakeMinecraftChannel]

I didn't really search for this, but thanks for the guide, now I learned something new. This was really helpful and understandable!

[@hnasr]

Thank you Willox! I am happy the video is informing

[@alih.3128]

Thanks champ 😘 الله يوفقك اخ حسين، فخورين فيك

[@coluccicreations5845]

Your explanation was excellent I understand now THANK YOU !!!

[@helioradial]

simple and well said for everyone to understand !!! thank you Hussein :D :)

[@Alex-ir5ph]

Awesome explaining, thank u!

[@praveenreddy5211]

Thank you wonderful session with example. its very helpful for host my website through public

[@Thugga_Thugga]

Thank you so much man! Keep doing excellent.

[@humayunnaveedkhan1281]

Thank you so much my brother Hussein.. Best explanation

[@sazon8009]

a thank is not enough bro, i love the way you teach it so easy to understand, it you make it easy to understand

[@Bloome_BlueFolf]

Simple and clear. Well made.

[@sravanikatasani.630]

Thank you for this amazing content!!

[@vuhaiang2077]

love your videos so much, big fan from Viet Nam

[@hnasr]

Glad you enjoy the content and all love to my subs from Vietnam 🇻🇳

[@mebachanews3450]

Life saver! Thank you sir!

[@sukhpreetlotey1172]

Thanks for clearly explaining it.

[@kamaleshpramanik7645]

This is awesome ... Thank you very much Sir.

[@giiovaani]

Here we have a REAL teacher !!!

[@no_one3249]

Thank you so much for the explanation~!

[@programmingwithshahriar9939]

Beautifully explained! Keep up the amazing work..

[@mazighus]

Clear and easy thank's Bro i give you a big like 👌

[@bryanssj3949]

Great!! Finally I can play Need for Speed 3 Hot pursuit whit my friends :D greetings from Chile

[@gigachad6844]

Awesome explanation.

[@user-nc6ho6dj3i]

Thank you so much, the way your sharing very funny and easy to follow, keep it up :)

[@f.i4215]

Ive done this and checked port foward checker, it says its closed and it shows me my ;public IP again! any help?

[@fergusproctor2710]

Thank you! Very helpful

[@antoninperonnet6138]

I think there was only one concept missing: the loopback interface of the router. On some routers when you request the router's public ip it will not respond: you need a loopback.

[@rudykammermeier8227]

Excellent explanation!

[@andylib]

This is tutorial is gold! Thanks

[@Trstn12]

Thank you for this

[@theSDE2]

Very well explained sir.

[@MrStranG-MrStranG]

Tq so much... It really helps me... Thanks Again

[@indietuts]

Wow, This what I was looking for?

[@usernamewatcher]

Well done! Useful! Thanks! ))

[@aleaguiarl]

Fantastic explanation

[@aryanbhosale9254]

Thanks very useful for Arduino projects that need websockets

[@abidsaleem7526]

Great video. Thanks :)

[@alirezai1434]

mashallah brother nice job

[@Parth.Deshpande]

amazing explanation

[@MohamedElhusseinPlus]

Thanks; nice and simple

[@ianchong7422]

so simple and thanks for sharing.

[@vvnnable]

you are a life saver bro

[@phantomswordorpoo]

I tried it, allowed my port through windows firewall , set up port forwarding through router but still its not working

[@JuanchoPM]

Such a master... Subbed and liked

[@1217castor]

Exactly what I am looking for

[@adhishmalviya426]

Are mere ladke jaan he tu meri 🔥

[@ignaciotorocoronado985]

Hussein. Here goes a few courses on college and im not even joking.

[@user-rg1jp2us4o]

Thank you so much for this simple explanation. Its down to earth and makes sense. You have earned my sub.

[@shijuvarkeythomas406]

how we can make two different location computer IP in local IP range ?

[@jayanthbondi4251]

Excellent video !!

[@mrjohnbull]

good day sir, i want to first commend you for the justice you did to the video on port forwarding. neatly explained. thank you very much sir. may God almighty whom i server bless and give you more grace, knowledge and greater wisdom. i was really educated by the simplicity of your teaching. please sir, i need a favour from you, what is the name of the router you used for the above video and how can i get it, i live in Nigeria. once more thanks sir.

[@godofkings4366]

thank you verry much . so i want to make sure . so we need open port and public ip address for entering private lan . is it correct .

[@programmingjoint3034]

you are the best

[@rickhorvath]

How might I do this without adding the port 8080? Ultimately using a domain name which points to my public IP and then to the web server I have on my LAN? Thanks in advance.

[@Airborn14]

How do I change my IP address from private to public? I have the Netgear 4G LTE modem LM1200, so I can run a node online using my raspberry Pi 3 B+ running through a Deeper network Mini device

[@sul3y]

Thanks Hussein

[@lanncerigs262]

Thank you for the video! It helps me as an aspiring backend engineer :) Anyway, I have a question. Sorry if it is a dumb question but, why can't you access the application using the public IP even if you are connected to the WiFi? I really appreciate if anyone can answer this question.

[@oscarozorio1005]

That's because that IP it's from the router so it doesn't have the app lets say, the app is running on the machine with the private IP and we stuck at the router who doesn't know where's the app

[@robertdowney1823]

🥺 thnk you!!

[@kazrie5795]

hello mate..how to port forwarding for games on steam..i’m trying so many times doing setup to run dedicated server..but it’s won’t work..maybe i’m doing wrong…i don’t understand about wan/router..where should i put the number for port 27015(steam game)..

[@minhthinhhuynhle9103]

I enjoyed this video. I enjoyed your voice. I give you a thumb up - like :)) (y)

[@chum8520]

great explanation!!

[@hnasr]

Heshan Dissanayake thanks

[@IamBrocco]

i love your way of speaking, it makes me proud of being an arab!!! keep your good content up!

[@jongjong9455]

Can you make a demonstration about trueconf using this concept. Connecting client to the server using internet.. Thanks.

[@tronghieu60s]

Thank you very much.

[@mohamedzarzar-s4t]

It is so helpful

[@pantherwolfbioz13]

But what if there are 2 applications running on port 8080? How to port forward that time? Will the router fail?

[@mohamedeladl6273]

very nice!

[@burakuren5188]

YOU ARE AMAZİNG DUDE !!!

[@yamenvoice]

Just PERFECT

[@samyakjain720]

you nailed it

[@nathanbenton2051]

I have a VM (running via VirtualBox on my local) configured with a bridge network on my local machine. On my host machine (or local environment), I secured copied (via terminal command scp) a file to the VM via 192.168.1.#. did that event ever go to the router or did all the networking on that particular request remain entirely within my local machine?

[@hnasr]

Fantastic question and beyond my knowledge to be honest. But I will make a guess. If you bridged your VM that means it is now part of the same network your physical machine is on, that also means it is going to get a unique IP address usually from the router DHCP and a unique mac address. So my answer is yes that command does go through your router and your physical machine will answer the ARP request for both the VM and itself Hope that helps but keep those challenging questions coming!

[@slonbeskonechen8310]

Great thanks!

[@boydchongo2556]

wow thanks man

[@monireol]

Thanks

[@8ack2Lobby]

I have a CGNAT so I can't open ports with my router :( any workaround

[@thegame8538]

I am trying to find a place to buy SSH Tunnel no-login servers. Have any ideas?

[@yayatoure47]

جزاء الله خيرًا

[@ferasawwad71]

Sir, I do not mean that, I mean are there other ways to communicate with any site, do you use the API or Google code .. Do you have an explanation of how to use the code for communications

[@AdrienAranda]

Hello! I did all the steps and my friend can connect to my private port so it works, but I tried to test it on my own with my very same computer like you did and it's not working. It says connection refused. Why is that?

[@youneskechache1804]

Thanks for the explanation simple and easy to understand, i would to ask a couple of questions if anyone could help me. Can i use 2 routers for the same home network (same service provider same bill) ? If yes does that mean the 2 different routers have 2 ip adresses or will it be just 1 ip adress on the 2 routers (the one provided by the network company)?

[@oscarozorio1005]

I guess it'll be only 1 public IP but 2 different IP's for the default gateway IP address

[@user-fp9ve9ux1h]

so great ..... many likes :)

[@hemsagarpatel8992]

Hi Sir i have tomcat running at 8080 on a windows pc ,,, i did port forwarding for this windowsPCIP and 8080 port ,and its not working from 4g net of my phone ,,,,what i need to do extra,,,,thanks

[@damlurker]

Hi Sir

[@sbasjinfnly9186]

15xs but I got it thanku so much loved it

[@hnasr]

Sbasjin Finley thank uuuuu

[@Adamson_zero]

I can't access my server from local network, using public IP address. However, I can access it from the internet using public IP address, And I can also access it from local network, using private IP address. Any idea? Thanks