What is a DMZ? (Demilitarized Zone) 

This is what schools are supposed to be: Good old-fashioned simple animations with commentaries crystal clearly breaking down complex concepts and emulating them into real-world practices. No bs, just what it is, how it works, and what it brings about. I dont mind writing essays, but I do mind writing essays for professors to assess who cant clarify the simple difference between Ipv4 vs Ipv6. Boy i was 5mins in the lecture and started googling and got everything I needed from this channel...

when you've been in IT for 10 years and heard these words thrown around and by this point you're afraid to ask.. these videos are gold!

I am now almost at the end of my Study as an it technician, I must honestly say that this guy is simply the best at explaining things to beginners, there is no one better. He explains everything as simply and clearly as possible so that even beginners are not confused. Sometimes I have the feeling with him that my grandma who has nothing to do with it could understand him. Keep up your great job!

when you're trying to look up a documentary on the Korean war and you stumble upon this

This video is amazing!! During my Network + studies, they talk a lot about NOT using Demilitary zones on corporate networks and i don't understand why?? This video explains it's uses and why it's beneficial. Also, NOBODY has every explained(except this video, smiles) how the DMZ is utilized in a home router setup. The XBOX example is very pertinant and is a great example of how to use that feature at home.

Please give this man an oscar or Noble. I have cleared all my doubts of DMZ. From here i can master. Thank you sir

I teach IT at the high school level. Your videos are one of my greatest resources. Our students take the CompTIA IT Fundamentals exam their first year and the Microsoft Networking Fundamentals their second year. I can not thank you enough for your help.

3:41 Love the toxic skulls spitting out from the first firewall. Great video as usual!

How are his explanations so easy and crisp! He even put in a explanation and quick guide for a home DMZ! You are just amazing!

Hands down one of the best presentation I have ever seen. I've been in school for 5 years haven't came close to this great of a video like this. Animation was on point, Summarizing on point, and give me extra content such as connect it to gaming console. I'm actually going to try this out. Thank you a million, you've help me tremendously, sir. Happy holidays, and New Year. :)

Wow, so simple, super informative at the same time, usually I don't bother to comment anywhere, but today I just reached the point where I felt the need to do so, I'm really enjoying all your videos, and I think you are the best learning source on the globe , thanks for your valuable contribution and the priceless effort. keep up the good work ❤️

I've been watching A+ videos to study and DMZs popped up and nobody explained it well, but this video is incredible! you actually explained it perfectly, thank you

whenever im stuck on a concept, i come to your videos. Thanks

That home router animation was so captivating!

I started watching him yesterday and i understand everything he teaches. Well explained 👌🏾 Good job bro. Keep it up

Nice! Been switching my brother over to 5 GHz on our secondary router Sunday and noticed this option. Was wondering what that was (besides parent's initials!) Decided to look it up later and was surprised to find it in my feed yesterday from you! Caught me off guard! Didn't even have to search for it! This amazing timing tends to happen a lot! Especially with TechQuickie! Nice job, really helped! Saved me time too!

I always come back to this video when I try to remember of explain an DMZ. This was so clear, concise and easy to understand.

I started following your videos a few weeks ago. Even if I don't speak english very well but I can understand your tutorials and it helps me a lot. Respect and Thank you

Those who like to play fighting games on PS4 or 5, I used to struggle to find opponents but when I put my Playstation in the DMZ on my router, I get matches instantly. It's a game changer. My main game is Tekken 7 and this helped a lot. No more waiting 5 minutes for a match.

Such a simple way to describe and advance computer security aspects. Thank you

I highly recommed this outstanding video to everyone who is familiar with networks, since i bet that 99% of them including me won't know the DMZ term in router 😁

This has got to be the best channel to learn networking. I never leave here without understanding the topic!

This videos zipped hundreads hours of study. Thank you.

Studying for my A+ , this is by far the easiest video I have seen yet. Awesome job

Now I have a new 2nd place to go for IT.. Professor Messer and this guy.. wow.. great explanations on how things work.

this is the best channel for understanding IT concepts! :)

Most clear explanation of a DMZ I've ever heard, thank you very much!

Everytimes I watched your video, I never skipped ads... I learned and liked all your videos.

Another way to visualize a DMZ is to think about a fast food restaurant. The DMZ is the area where customers can come and order food, but they do not have access to the back rooms where management sits. The first firewall to access the DMZ would be the door to get into the restaurant and the second firewall would be the door to get to the area where the management sits.

4:33 thanks for giving me one good reason on why we should have a game console at home

I agree I honestly am learning more on these videos than I am with the school content. Thank you.

Dude! Thank you so much! You have no idea how hard it has been just to get a basic summary on what this is!

You can do more in 10 minutes than what 20K tuition does in 4 years. Keep the videos coming, I learn every single time when I watch.

And now, I know what DMZ means as it pertains to our network at work. I've just been nodding my head when it's been discussed and figured I would learn at some point. Today was that day.

This is the 2nd video of yours I have watched, and I am very impressed! You explain things in a very clear and understanding way with a very good visual video along with it. And you explain at a speed that I can keep up with. I've tried watching other videos and I usually end up just as confused as when I started. Thank you for your help!!

It amuses me how you keep things clear and simple.

One of the most underated IT channel on youtube. Subscribed!

Very clear and easy to understand. Thank you! Also really enjoyed the animation on the router at about 3:50.

I never understood what DMZ is, until now! Thank you.

Great video, especially the graphics. I can't help thinking of something I was taught in school; "a picture says more than a thousand words", especially on complex subjects.

I'm an IT guy, and this is an excellent YT-channel.

This is the best explanation about DMZ I have ever seen. And I've seen a LOT (mostly bad). And your animations are amazing! Thank you for your videos.

honestly i love how you explain things...

I used dmz on my ps4 for long time but never truly knew the reason for the settings, your videos explaining things that children can understand it. Thanks and subscribed.

Nice video, thanks for respecting our time by making it short.

Your vids are the absolute best on the subject matter you cover. Concise, well presented and very useful in helping me understand these concepts and topics. Thank you!!!

very useful and easy to understand. I have heard DMZ a lot but can not understand clearly, and why we have to use DMZ area in network to secure

DUDE, your videos are so easy to understand.

The security professionals I know scoff at the term "DMZ" to describe any configuration other than the two-firewall arrangement starting at 3:25. An aspect of operating a DMZ that you didn't mention is that each system running in the DMZ should run an image copied from a server in the protected area, and that image should have strong reference hash associated with it. A monitor should recompute the hash for each system periodically and compare it with its reference hash. Any malware that might find its way into the DMZ will be detected by the monitor, and can be immediately replaced by its reference image in the protected area. As more people work from home in the post-pandemic era, the demand for increased security will escalate. Many or most employers require their home workers to use an employer-provided system for company work. That system should NEVER be on the same private network as the other devices in the home - especially if any of those devices is accessible from outside. The proper configuration of a home network might be a good candidate for its own video. The security professionals I work with recommend one firewall at the connection to the outside, and another firewall for the devices from each employer (a home with two remote workers would therefore have at least three firewalls). The result is a private network segment for each employer, with shared resources on another private network. Any cloud-facing device is configured in the (real) DMZ.

I cant thank you enough Mr.PowerCert, I have learned so much from your channel !

The best IT videos ever

I wasted 6 minutes learning something I already knew.. Now that's dedication.

I was wondering when you were going to add the second firewall in front of the web and email servers. Then bam you put it in, good job and a great video for those just starting out in networking. Thumbs up.

2:20 is the aha moment for me, appreciate the effort placed into the explanation flow and animations!

This has been one of the most clear and helpful videos in my IT studies

Best explanations ever on DMZ, especially for Home Router part was awesome!

Finally I understand what a DMZ is !! Thank you so much PowerCert.

In just 6 Mins 13 Secs it explained so clearly. Thanks.

Your tutorials are the BEST here on RU-vid!!!

Someone buy this man a damn coffee!! Kudos sir!!!

"In the real world, a DMZ is an area where the military is forbidden" - Not quite if you've been to the North-South Korean border DMZ

making all my questions from years now ANSWERED! Huge gratitude!

Great, simple, and nice explanation. Thanks! I will use this video to explain my classmates the DMZ.

DMZ in the real world: no more weapons DMZ in the computing world: no more firewalls Great video thank you

god, these visuals are so good...makes it SO easy to understand

i havent seen such well explained videos

Thankyou. I am on chapter 19 of my Comptia Net+ Book by Mike Meyers, and this video helped to explain this plainly!

6 min and all clear. thank you

It's good that you included home router DMZ working as well !!!

Very clear explanation of what DMZ is. Thank you for this you are awesome!

Honestly, the best explanations hands down.

Please add new topics videos. Your classes are truly amazing.

clear explanation of a DMZ ever meet! thank you sooooo much

Your explanation is clear cut. Love that. Please also include practical lab snippets when necessary

I could give you a big hug right now

Amazing and clear explanation. I was reading up and down the web failing to understand that. You helped me a lot thx

I love all ur tutorials. There are well explained even a person who has no idea about networking can get some info from ur tutorials.

lol I know people that will flip listening to this! But u agree with you 100% I’ve followed n subscribed! Thanks for sharing what everyone has in mind

Simply amazing and easy to swallow. Great job PowerCert.

Dude, I Love ur All Video xD i really love it, well, i'am still High School and i wanna become sysadmin and i found ur channel and it's really helpful xD thank you so much :3 ( i need learn more :3 )

Best explanation I found on youtube

thank you for explaining it both in a company sense and home network sense!

As a kid, I wish I knew that DMZ trick for my console.

Thank you so much, i could get portforwarding to get to work but now i just know i can use a dmz👏🏻👏🏻👏🏻

Omgawd thank you! Keep up the videos! This is helping me with comptia!

Good Job. I love the way it was explained. Kudos and I have downloaded the video for future reference.

Thanks for clear IT explanation and animations.

I absolutely love this channel.

Love this explanation wish people knew how to run schools and help kids learn

what a great and clear explanation thanks a lot

Such a good explication, in the book is so much beating around the bush that the bat got green in color. THANK YOU! subscribed! Will use DMZ for faster connection on my PS3

Your way of explanation is just mind blowing.

This channel is a blessing ❤

very well explained DMZ in a simplified manner keep up the good work...

An important thing to do with the firewalls, is to use different settings and if possible, use a different brand of firewall for the DMZ. This prevents hackers from bypassing 2 firewalls with 1 method.

Yes now I can connect from work to my computer at home by changing my Router, Thank you How about a Video on Subnet Masking would be very much appreciated. Great job keep them coming.

A very good explanation! What i dont understand is what you mean by "inside" and "outside" the firewall. Most network firewalls have multiple legs/interfaces you can configure into security zones of different levels, so that you can create a zone for the dmz in your terms "inside" the firewall, without it being on the same zone or even subnet as the rest of your lan. If you are setting up a dmz with your topologi using only one firewall you will not have any control of the network activity on your dmz, as you have your dmz "outside" the firewall. I belive that the dmz should have some sort of security. Not trying to be a smarty, just trying to educate myself and others. I think your videos are really good!

I was actually taught to use two routers. The first router is the frontline firewall. This router (port 1) is connected to the WAN input of the second router. (disable wireless feature if it has it) Then a computer is connected to (port 2) of that router, set to always on and with random files that look like they mean something, if possible include malware. :-) This computer is called a "honey pot" and should be set on the first router as the DMZ host...Then router #2 is the one that supports your home network via LAN cables and or secure wireless. Now they have to fight to get past the first firewall and if they do they find the honey pot which is a deterrent from any additional searching. If they do, then they have to get through a second firewall to get to the internal network. Make sure all the firmware on the routers have the latest updates.

Thanks for the explaination. Easy to understand

Your explanations in all videos are Rocking dude just keep going