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What is a Firewall?

Tech

This is an animated video explaining what a network firewall is. A firewall is a system that is designed to prevent unauthorized access from entering a private network by filtering the information that comes in from the internet. A firewall blocks unwanted traffic and permits wanted traffic. My monitor (Purchased this on 11-9-25) that I use and recommend: https://amzn.to/4oCYS4o My keyboard https://amzn.to/3XJlSDb My mouse https://amzn.to/4pqvQpj Browse the internet in privacy. ►Get the VPN that I use (affiliate). https://nordvpn.com/powercert Save 65% on a 2-year plan + 4 months free

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emmanuelle_maillot
emmanuelle_maillot 4 weeks, 1 day ago

thank you Powecert, i needed this for my homework, i study stuff related to well, computers and stuff, thank you, it's so easy to understand you and it's so helpful, the visual information is so well made and if i want to research more about it, i can have this as a guide

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rosaaltamirano467 4 months ago

That attack at the end was personal

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daniel_wali 4 months, 4 weeks ago

Great work I am a Cloud Computing student. I appreciate your work. In 6 Minute you gave a lot of information in a proper words. ❤

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vasudhamalhotra949 5 months ago

Super helpful video! We're coming out with a micro-segmentation enforcer that will help enforce firewall rules 🤫

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meganseraph65 10 months ago

I had no idea what a firewall was but thank you. now I get it....

melanie.campbell
melanie.campbell 10 months, 3 weeks ago

You are the best teacher.May Allah give you long life.

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danielleadams340 11 months, 2 weeks ago

I love how at the end of all these videos everything breaks and catches fire and explodes

micheal.turner
micheal.turner 1 year ago

Thanks for the video, really helpful! Just wanted to add that firewalls usually check rules from top to bottom, and the first match decides what happens. So if a block rule comes before an allow rule, the traffic will still be blocked. Might be useful for others to know!

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gabrieltempest28 1 year, 2 months ago

Best IT learning organisation ❤

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andrew_martin 1 year, 3 months ago

Makes easy to understand thank you

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robin_eaton 1 year, 4 months ago

That ending was hilarious

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lucieadam19 1 year, 4 months ago

Thank you for this video. Definitely helped me understand the concept of firewalls

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cheyenne_brown 1 year, 4 months ago

Those Host based firewalls was trembling watching the intrusion go down

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sherrybaker792 1 year, 4 months ago

Boss, I'm from India....Just awesome bro how u explained it with detailed animation♥️♥️♥️👍👍 and I'm watching it on 23rd January 2025 at 7:30 AM.... Love from🇮🇳

luisquesada524
luisquesada524 1 year, 5 months ago

watching this in 2025 and believe me its still useful and to the point u guyz nailed it!

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laurencebailly256 1 year, 5 months ago

im so glad i found your channel i gotta explain/discuss firewall tommorrow as an report and this helped me 🦅

joshuachen282
joshuachen282 1 year, 10 months ago

Interviewer : What university did you graduate? Me : Youtube university!

anel.valdez
anel.valdez 1 year, 10 months ago

its like you interviewed my brain on how it likes to learn and made an entire youtube channel out of it! having visuals even if its just the concept is so valuable to me thanks PowerCert Animated VIdeos.

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erick_pimenta 2 years, 1 month ago

Seriously!😢 I don't know how to thank you 😢❤, I nearly give up in IT because I wasn't getting an image of what ever I read and being taught by my lectures, I came across your video around 1am in Ghana, it 2: 50 now, and the impactation is like I joined the channel long time ago ❤😭. God bless you and your team

micheal_santiago
micheal_santiago 2 years, 4 months ago

the virus going to the computer like diarrhea 💀💀