School Of Basics | What is SSH | How SSH works 

So humbled to read your message Sveta

So happy to know it

true this one helped me a lot

Most welcome!

Glad it helped Scott

Glad it helped Dayanand

JP Let's delve into the intricacies of SSH key-based authentication. It's great that you're exploring this topic, and I'll clarify the processes for you. 1. SSH Key Pair Generation: - Client: The client generates an SSH key pair consisting of a public key and a private key. - Public Key: The public key is shared with the server. - Private Key: The private key remains securely on the client machine. 2. Server Configuration: - The server stores the client's public key in a special file (usually `~/.ssh/authorized_keys`). - The server marks the public key as approved for authentication. 3. Authentication Process: - When the client connects to the server: - The server sends a random string to the client. - The client encrypts this random string using its private key. - The client sends the encrypted string back to the server. - The server decrypts the received string using the public key. - If successful, the server authenticates the client. Now, let's address the difference you noticed: - Your Description: - The client decrypts the random string using its private key. - The client then sends back information to the server. - The server authenticates based on this information. - Video Description (as per your observation): - The client encrypts the random string using its private key. - The server decrypts the received string using the client's public key. - If successful, the server authenticates the client. Both processes are viable and achieve the same goal: secure authentication using SSH keys. The video's approach emphasizes the client's role in encrypting the message, while your description highlights the client's role in decrypting it. These are two sides of the same cryptographic coin In summary, both methods are correct, and they don't have different names. The key pair ensures secure communication, and the specific steps may vary slightly in how they're described Keep exploring, and feel free to ask more questions as you learn..

Most welcome Arun

Most welcome Sundar

Most welcome Rachit

Excellent Hari

You are most welcome

Humbled to know this Nandhini

Glad it was helpful Jaikishan

You're welcome!

Thanks for watching Sandeep

Most welcome Madhavan

So nice of you

Sure Radhika, I will plan a session

Most welcome

Most welcome Lucky

Glad it was helpful!

Most welcome Santosh

You are very welcome Jimmel

You are most welcome Pooja

Glad it was helpful Ragesh

Thanks, will do!

I will do

Most welcome Saifuddin

Glad it was helpful

Most welcome

Most welcome Saurabh

Thanks for watching Odunayo

Most welcome Elavenil

Glad it was helpful!

Always welcome

Thanks Rajeesh

Thanks a lot

Thanks a ton Ganesh

You are most welcome Ayush

Will be coming next week Dinesh

Glad it was helpful!

Hi Manoj, I will need to check details

Thanks Sophiya

Most welcome

Most welcome Ahmed

You're welcome John

Most welcome Biswa

Most welcome Yogesh

Sure Ravi, Keep learning

Most welcome Srikanth

You are most welcome Kamalesh

Most welcome Nachiket

Most welcome 😊

Glad it was helpful!

You are welcome

Most welcome Eugene

Hi Singaravelan, there is cryptographic fingerprint that is used to uniquely identify the keys.

You are most welcome

I will plan for that Ram

@@RaghavPal thanks Raghav

Hi Arun, will check on this

@@RaghavPal hi sir did you got any information?

Thanks and welcome Neha

Hi Sarthak Both these mechanisms are performed during the initial setup phase of an SSH session, and are not repeated in every message exchange. However, they are in place throughout the duration of the SSH session to ensure message integrity and prevent packet loss due to interleaving.

Thanks Dhevan

Glad it was helpful Kedar

default is port 22, but this can change

Hi Ebrahim, the person needs to have the authentic private key. Also it is recommended to secure your private key with password, so just in case someone gets access to you private key, he will still need to provide password to use it.

@@RaghavPal Got it! Many thanks for your reply 💜

Most welcome Arun

Not yet, will need to check online

@@RaghavPal Thanks Raghav

Hi Czar, yes so without encryption it will be a step easier for hackers, I am going a plan a security testing Q&A soon. that will help

@@RaghavPal thanks man

Thanks for watching Karteesh

Sure, I will do

Thanks for watching Tulasi

Glad it was helpful Chaitanya

You are welcome Tanveer

Thanks Vamsi

Thanks

Thanks and welcome Manish

I will try to add a detailed session Aditi

Hi Priya, will need to check your setup

@@RaghavPal Please suggest a way to check setup??

I will do Peddi

Will check on this Suhasini

@@RaghavPal thank you raghav

Thanks for watching

Hi Abhay, pls check this too - automationstepbystep.com/2020/07/23/a-story-of-ssh-secure-shell/

@@RaghavPal Thank you sir, do we have more link that shows actually how authentication takes place.

will need to search more online

you need to make a correction. encryption happens using the public key and decryption happens using the private key

Thanks, will do Abdul

Yes, pls check here - automationstepbystep.com/

thanks Tarun

Thanks Toshit

Thanks and welcome Devendra

Thank you 🙂

Thanks for the visit

Hi Abdulla, this has good explanation of this concept www.ssh.com/academy/ssh/public-key-authentication sectigo.com/resource-library/what-is-an-ssh-key

Hi Abdulla, this has good explanation of this concept sectigo.com/resource-library/what-is-an-ssh-key www.ssh.com/academy/ssh/public-key-authentication

Then u are fucked 🤣 To be serious, a private key is way more secure than a password and cannot be brute forced. U can also add a layer of security with a passphrase for your private key. So if someone stole your private key, he won't be able to use it in another machine.

Thanks Sai

Most welcome Poorna

Thanks for watching Prakash

Hi, I have not used ZOC, Can find more here - en.wikipedia.org/wiki/Comparison_of_SSH_clients www.slant.co/versus/499/5495/~putty_vs_zoc-terminal

Hi Kartik, I touched the basics in this video. Will plan for a more detailed session too

Most welcome Nikhil