Be aware that ssh-keygen by default uses the old RSA alchorithm. It's advised to switch to the newer ED25519. You can generate a more secure keypair with this command: _ssh-keygen -o -a 100 -t ed25519_ Here with -o we specify to ssh-keygen that we want the new key format. -a sets the number of encryption rounds to 100 to make it much harder to brute force. Finally with -t we set the format to ed25519. The default path is ~/.ssh/id_ed25519 for the key and ~/.ssh/id_ed25519.pub for the public key. Stay safe! :-)
Unless you're a "stable" distro user, openssh has been using new format for all keys since v7.8. In fact, to use old PEM format you would have to explicitly specify it with -m and -o is not a valid option anymore. Also, ed25519 uses new format only.
You can get $25 at UpCloud to test SSH features: upcloud.com/signup/?promo=alu25 0:41 Why use SSH keys 1:23 How to create SSH keys 2:14 What’s the difference between private and public keys 2:45 How to add SSH keys to a remote computer 5:18 How to disable password login and allow only the SSH key login 6:35 How to use SSH keys for password-less login 7:19 How to use SSH authentication agent and avoid typing you ssh key passphrase many times
Although I haven't watched the entire Video but: - The plus point for the video here is that I use relatively standard language, even though I'm not fluent in English. Because of my poor English, I had to use subtitles for the Video and it was translated into my language very properly and fully. - Minus point in this Video is a quick guide. This Video content is for beginners to learn about SSH. Unfortunately. *** But this is my own comment. Your video is only 8 minutes, but I have to watch it for nearly 2 hours. _ * Thanks anyway for sharing it for free. And I clicked "Like" for you. Thanks you
Where you were years ago? :D Today I know the way perfectly, but several years ago when started it took me several hours to make it work vs. seconds now. Nice and... avarge vid ;) (avarge-pro of course :D)
This tutorial is very fascinating, it helped me a lot, Thank you. I have one doubt, Can a single ssh public and private key be used for authentication on multiple agents/nodes/remote servers?
Very helpful, thank you. My biggest issue is that every time I copied my public key to the server, it would also copy my client username, and the linux machine would think that that was part of the key, so it would always lock me out! Lol
I see you copy the key to the remote server from the client side. What if you create the keys from the server side. Do you still have to add the key to the server itself since the key already created there? Or in the case I am talking about you just copy the private key to the client (Client is the one to be used afterwards for remote access. Its just that installation of keys happening from the server side). PS Upon installation keys go different directory than the one they are created? Thank you
If I have a server with key-based login only and I want access from yet another machine, how can I add the other key? I can't just use ssh-copy-id because I can't authenticate without the key from the first machine
Be aware that ssh-keygen by default uses the old RSA alchorithm. It's advised to switch to the newer ED25519. You can generate a more secure keypair with this command: _ssh-keygen -o -a 100 -t ed25519_
Here with -o we specify to ssh-keygen that we want the new key format.
-a sets the number of encryption rounds to 100 to make it much harder to brute force.
Finally with -t we set the format to ed25519.
The default path is ~/.ssh/id_ed25519 for the key and ~/.ssh/id_ed25519.pub for the public key.
Stay safe! :-)
Unless you're a "stable" distro user, openssh has been using new format for all keys since v7.8. In fact, to use old PEM format you would have to explicitly specify it with -m and -o is not a valid option anymore. Also, ed25519 uses new format only.
You can get $25 at UpCloud to test SSH features: upcloud.com/signup/?promo=alu25
0:41 Why use SSH keys
1:23 How to create SSH keys
2:14 What’s the difference between private and public keys
2:45 How to add SSH keys to a remote computer
5:18 How to disable password login and allow only the SSH key login
6:35 How to use SSH keys for password-less login
7:19 How to use SSH authentication agent and avoid typing you ssh key passphrase many times
Although I haven't watched the entire Video but:
- The plus point for the video here is that I use relatively standard language, even though I'm not fluent in English. Because of my poor English, I had to use subtitles for the Video and it was translated into my language very properly and fully.
- Minus point in this Video is a quick guide. This Video content is for beginners to learn about SSH. Unfortunately.
*** But this is my own comment. Your video is only 8 minutes, but I have to watch it for nearly 2 hours. _ * Thanks anyway for sharing it for free. And I clicked "Like" for you. Thanks you
Very straight forward and clear, explained in a short amount of time
Very clear video. I find that ssh key stuff sometimes is hard to understand for some. Your video does an excellent job in explaining all.
I also was confused by public and private keys when I read about them the first time. Everything becomes clear after you use it for some time
I was struggling to solve my ssh connection issue from last 1 week almost may e more than that and you solved it..May God Bless You ..
You teach us so much about everything related to linux thank you so much
Thank you for watching and leaving comments
Where you were years ago? :D Today I know the way perfectly, but several years ago when started it took me several hours to make it work vs. seconds now. Nice and... avarge vid ;) (avarge-pro of course :D)
Love your videos as always. I gotta try this upcloud server asap, thanks!
Thanks. Give it a try. It's pretty good.
Thank you. I have learnt a new thing today!
thank you so much this was so informative
This tutorial is very fascinating, it helped me a lot, Thank you.
I have one doubt, Can a single ssh public and private key be used for authentication on multiple agents/nodes/remote servers?
Very helpful, thank you. My biggest issue is that every time I copied my public key to the server, it would also copy my client username, and the linux machine would think that that was part of the key, so it would always lock me out! Lol
So much information in 8 mins thank you
I see you copy the key to the remote server from the client side. What if you create the keys from the server side. Do you still have to add the key to the server itself since the key already created there? Or in the case I am talking about you just copy the private key to the client (Client is the one to be used afterwards for remote access. Its just that installation of keys happening from the server side).
PS Upon installation keys go different directory than the one they are created?
Thank you
where are you supposed to create the ssh keys(both) from ? is it the client computer or remote computer
if i send the key to remote host, can remote host connect to my computer? if yes, how to do it? thankyou
Another excellent, useful video, thanks again.
My pleasure
i was struggling with this issue.Thank u so much for this wonderful video...
Great to the point Videos ! Bless You..
are you romanian? I am trying to guess your country by your accent :D
If I have a server with key-based login only and I want access from yet another machine, how can I add the other key? I can't just use ssh-copy-id because I can't authenticate without the key from the first machine
Thank you. Great video mate!
can a computer that is on a different network(connected to different wifi) use ssh to connect to my server which is on another wifi?
Hi Sir, why does HTTPS do the reverse process ? It keeps private key in the server and shares public key with browser, thanks
can someone bruteforce and find passphrase of a private key?
6:14 facing this issue😭😭😭 (permission denied publickey) please answer
thanks a lot for posting!
Work tutorial in Windows ssh?
Греат сенк виз май лав фром май хард )))
Great video! You made it much simpler, thank You :)
Thank you for watching and commenting
Thank you for your amazing videos
Thank you for watching
I need to put my public adress or local ip adress
Thank you so Much :)
Thank you, so well explained. It solved my problem. :)
thank you so much
Thankyou
Thanks for the comment
Чувствуется славянин по акценту :-)
And thank you! )
Thank you too :)
thankyouuu
Good it work
Great ~> You teach very clear instructions. Thank You :-)
Hi