The Top 15 Network Protocols and Ports Explained // FTP, SSH, DNS, DHCP, HTTP, SMTP, TCP/IP

If you are learning networking, these are the top protocols and port numbers you will NEED to know. Good for the CCNA, Net+, Sec+, CEH, Pentest+, or that pesky interview you need to ace.

Download the pcap here and follow right along:

== More On-Demand Training from Chris ==

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== Private Wireshark Training ==

[KaySwiss]

Can't wait to watch this video in full after work today!! Some of the best cyber security/networking content on YouTube!

[yeayea]

0:48 FTP
4:25 SSH
5:56 Telnet
9:01 SMTP
12:24 DNS
14:18 DHCP

[KellenBegin]

thank you for your great content. not just explaining but showing examples with wireshark!

[nathanprisbrey]

I love the tests that you gave as you introduced each different protocol -- very entertaining!

[Shalom_Mike]

Thank you, Chris! Ever since I watched you on David Bombal's channel, I have become a fan of your teaching style. I am a Systems Engineer and you have greatly helped my understanding of the network side.

[louisvarre]

Incredible lecture! I’ve been studying this information for months and having trouble retaining it, until now. Thanks!

[benjamindeporte]

Great content - simple to understand, but yet lots of good information !

[nicktucker]

pretty easy, straightforward stuff; learned all this in the 90s and thankfully have retained most of it. Thank you for the review. Memorizing really obscure stuff like HSRP using port udp 1985 was fun too.

[krunokartus]

Tnx for the lecture. Just stumbled to it and find your style really calm and clear

[misero]

Not gonna lie. Totally underrated video. Definitely going to recommend this to the study group I'm running.
Keep up the good work

[cwmcnutt]

This is such a badass channel! Always great explanations and real world examples and with a pcap file attached! Thank you Chris for always providing great FREE training.

[zoeyweller]

Chris, you're the man! Thank you so much for sharing all of you knowledge, I continue to learn so much from you and I am so grateful!

[tahersadeghi]

Like all of your videos, smooth and pleasant. Thank you Chris.

[vitali]

Thank you so much Chris.Very informative video!!!Great explanation, love it!!!

[poscal]

it's been a week since i'm gathering through your video, those video are so helpful for my understanding of the network. Thank you for the time that you spent creating and editing those video.

sincerely

[errolsimmonds]

Hey Chris, thank you so much for your amazing videos.

[kbrnzte]

Thnaks Chris you explain very well. Best regards from France

[manadeldia]

You are doing a great service teaching us all this in a neat and easy way. Thank you.

[majiddehbi]

that was realy informative thx dear chris good bless u

[neadlead]

love the video chris, can I ask if u can do a deepdive into dns so we see the headers and the flags and how they are used in ddos and dns recursive flood, thanks for sharing