Nice video. Instead of using the host a and host b text files, to distinguish between the two machines, you can run the hostname commands on each machine. Thanks for the great video!
Hi Tony, thanks for the amazing tutorial. It really helps especially for me as a beginner. I have a quick question about the password. What if you don't have the server password and I only have a private key. Can you use the private key to log in instead of the password directly? My user name and IP connect me to the server but it was asking for the password. When I tried to paste the private key it won't allow me it says invalid. Is it possible to use a private key instead without login in using your password?
Missleading title. You actually DO SSH to a server with password. Not possible to transfer your key to the server without having to first establish a password connection?
Really hope this reaches you, but will it still prompt for a password every time its changed? If the password use isn't disabled and expires and changes will they still have to receive it and enter it again?
Hola Tony. I do deeply appreciate your clear explanation about this important topic, but could you please let me know how we can connect to the remote server while the firewall in on, and we are not allowed to use port 22?
you can change what port ssh used. if you are trying to run ssh without opening a port, any incoming data requires an open port however, this is true every application that accesses the internet.
ServerA (ubuntu 12) and ServerB (Ubuntu 22) I had already done same process but still not able to takes 'password less' ssh access from ServerA of Server B. After reading lot of tutorials I read /var/log/auth.log on serverB where I was getting error "userauth_pubkey: key type ssh-rsa not in PubkeyAcceptedAlgorithms [preauth]" Solution: I have entered parameter "PubkeyAcceptedAlgorithms +ssh-rsa" in ServerB's /etc/ssh/sshd_config file. Its working fine now.
@@israiqbal1414 I'm sure you've figured this out by now but I'm leaving this answer if anyone else get stuck on this. In the video he already knew the password and by your question it looked like you didn't know the password for your server. Well in this case one can use private key with the following command " ssh -i your-private-key user@ip "
this doesn't work, i'm trying it from a macbook (not a ubuntu or freebsd machine) using term can you try it and see if you can get it to work from a mac laptop as the host I think it requires editing the SSHD conf file on the mac - please try and see if you can get it working without using ubuntu - there probably will be different steps needed...
The sshd config file is only relevant on the server that you are sshing into. The "d" in sshd is for daemon and is referring to the background process that waits for incomming ssh connections. When you say that it doesn't work, what error message do you get?
Nice video and informative. I am trying to to an rsync from my VM server over to my NAS. With root, I do not get prompted for a password. with any other user, I get prompted to enter a password. I tried the same for just doing ssh. Even if I have multiple keys in the authorized_keys file. What am I missing, thanks.
Thank you. (Read until the end) I have 2 old computers in my house + 1 raspberry pi + 1 main computer. I use sshfs to create a network between them so I can have some sort of "mesh NAS", but it was very tedious to put the 12 keys each time I tuned on any device. One little problem. Any pc can now connect to any other PC without password, except for PC N°4. I need to input a password for (PC1) -> (PC4), (PC2) -> (PC4) and (PC3) -> (PC4). Any idea why?
Suggestion if the server still let you in with password after the above settings. In my sshd_config file there is a line `Include /etc/ssh/sshd_config.d/\*.conf` And inside this folder there were another .conf file with one line: `PasswordAuthentication yes` So, I had to modify the other configuration file as well.
Hi Tony, in case of doing a script in geany how would you write a script that allows an individual person to communicate via ssh (sshpass) and execute nmap scans and geoip/whois queries?
Hey I was not able to find the ssh file. Am I supposed to download OpenSSH or does it only show once I have SSH'd to a destination. A bit confused and I'm sort of a noob
If you don't have the password then you don't own the user of the remote machine. Of course you can't access it it would be a huge security flaw. And this isn't useless at all if you need to automatize file transfert with scripts.
@@TonyTeachesTech I was using VSC on windows to connect to my pi but was having trouble with generating SSH keys. Ultimately I realized the keys were not being put into the .ssh folder, and after I moved them I was able to follow your steps with ease!
Hi Tony, I tried this from a Mac to PC, but after I input the password (as 4:23 in this video), I got some error codes, and I still need password to ssh. Is there anything I missed?
Nice video. Instead of using the host a and host b text files, to distinguish between the two machines, you can run the hostname commands on each machine. Thanks for the great video!
Congratulations on 7k
Thank you so much 😀
simplifies and to the point. well put together and delivered. Nice.
Crystal-clear explanation! 👏👏
Exactly what I was looking for! Thanks!
Tony, why didn't you need to edit the sshd_config file to uncomment and change lines to no?
It still keeps prompting me for a password.
Nice! only had to watch 1 video to understand SSH keys :)
Hi Tony, thanks for the amazing tutorial. It really helps especially for me as a beginner. I have a quick question about the password. What if you don't have the server password and I only have a private key. Can you use the private key to log in instead of the password directly? My user name and IP connect me to the server but it was asking for the password. When I tried to paste the private key it won't allow me it says invalid. Is it possible to use a private key instead without login in using your password?
If that's the case, you can access the server like this:
ssh -i your-private-key user@ip
Your instructions are very clear. Thanks, dude. God bless you.
Glad to help
what about password-less connection from linux to windows
Thanks! It really helps!
Thank you, great presentation (techniques and info)
what does your ssh config look like? i'm still getting asked for a password even though i have a key. password does not work.
good presentation, to the point and simple enough
Glad you think so!
Very helpful video, many thanks!
Missleading title. You actually DO SSH to a server with password. Not possible to transfer your key to the server without having to first establish a password connection?
Yes I suppose you're right since you initially need the password for setup
top of the tops
this is so helpful , thank you for sharing!!!
Really hope this reaches you, but will it still prompt for a password every time its changed? If the password use isn't disabled and expires and changes will they still have to receive it and enter it again?
Thank you! If we are connecting to different servers do we generate different public keys for each server or the same one is used over and over?
You can use the same public key for multiple servers
very useful !! thanks !!
You're welcome!
Hola Tony. I do deeply appreciate your clear explanation about this important topic, but could you please let me know how we can connect to the remote server while the firewall in on, and we are not allowed to use port 22?
you can change what port ssh used. if you are trying to run ssh without opening a port, any incoming data requires an open port however, this is true every application that accesses the internet.
password is needed in all cases
ServerA (ubuntu 12) and ServerB (Ubuntu 22)
I had already done same process but still not able to takes 'password less' ssh access from ServerA of Server B. After reading lot of tutorials I read /var/log/auth.log on serverB where I was getting error "userauth_pubkey: key type ssh-rsa not in PubkeyAcceptedAlgorithms [preauth]"
Solution: I have entered parameter "PubkeyAcceptedAlgorithms +ssh-rsa" in ServerB's /etc/ssh/sshd_config file. Its working fine now.
Thanks Tony!
You bet!
How can I do that with a server local windows and virtual server Ubuntu on VMware workstation ?
Hi there! At 2:09 you "pasted your password in and entered" but what if we do not know the password? What should we do instead?
also at 4:25 you "copied the password" but from where? I am sorry I am a beginner :"))
@@israiqbal1414 I'm sure you've figured this out by now but I'm leaving this answer if anyone else get stuck on this. In the video he already knew the password and by your question it looked like you didn't know the password for your server. Well in this case one can use private key with the following command "
ssh -i your-private-key user@ip "
this doesn't work, i'm trying it from a macbook (not a ubuntu or freebsd machine) using term
can you try it and see if you can get it to work from a mac laptop as the host
I think it requires editing the SSHD conf file on the mac - please try and see if you can get it working without using ubuntu - there probably will be different steps needed...
The sshd config file is only relevant on the server that you are sshing into. The "d" in sshd is for daemon and is referring to the background process that waits for incomming ssh connections.
When you say that it doesn't work, what error message do you get?
its still asking for my root password
On password what did you paste, I didn't get this part actually.
Assuming you already have ssh access to a server, that's your user password
When copying the pub key, you entered a password. Where did you get it assuming you don't know it for the remote server
If you don't know the remote server password then maybe you shouldn't have access to it...
Nice video and informative. I am trying to to an rsync from my VM server over to my NAS. With root, I do not get prompted for a password. with any other user, I get prompted to enter a password. I tried the same for just doing ssh. Even if I have multiple keys in the authorized_keys file. What am I missing, thanks.
thank you Tony!
My pleasure!
Thank you. (Read until the end)
I have 2 old computers in my house + 1 raspberry pi + 1 main computer.
I use sshfs to create a network between them so I can have some sort of "mesh NAS", but it was very tedious to put the 12 keys each time I tuned on any device.
One little problem. Any pc can now connect to any other PC without password, except for PC N°4. I need to input a password for (PC1) -> (PC4), (PC2) -> (PC4) and (PC3) -> (PC4).
Any idea why?
Sorry Luis, I don't know why. I would need time on your network to determine
at 4:25 , what exactly did you copy and entered exactly?
I just got the host key, no username,no password,What should I do now
I AM MAD. Nothing of this works.. on a fresh ubuntu22 VPS install.
All 20 tutorials say /show the same thing. Nothing works.
Hi, I just wanna ask how did you know your root@ip's password?
Suggestion if the server still let you in with password after the above settings.
In my sshd_config file there is a line `Include /etc/ssh/sshd_config.d/\*.conf`
And inside this folder there were another .conf file with one line: `PasswordAuthentication yes`
So, I had to modify the other configuration file as well.
Thank you my friend!
No problem
I have do the same thing many times but it is still asking me for the password...
Hi Tony, in case of doing a script in geany how would you write a script that allows an individual person to communicate via ssh (sshpass) and execute nmap scans and geoip/whois queries?
does the public key need to be the same for the client and server machine to allow passwordless connection?
You only need to place the client's public key on the server to enable passwordless SSH authentication.
great man, thanks
You're welcome!
Hey I was not able to find the ssh file. Am I supposed to download OpenSSH or does it only show once I have SSH'd to a destination. A bit confused and I'm sort of a noob
Perhaps if ssh isn’t installed, then you might need to install it but this typically comes preinstalled on most systems
Thank You!
I need to do that but from a windows machine to an ubuntu machine, its been hours and I jus cannot solve it.
short and easy to follow thx
You're welcome!
to copy the pub key to another server u still need the password...
May I know I share the pub key to another host to logon the server with no password for another users?
How can you share this key if you don't have a password, or if you do have a password there is no reason to do so
If you don't have the password then you don't own the user of the remote machine. Of course you can't access it it would be a huge security flaw.
And this isn't useless at all if you need to automatize file transfert with scripts.
I am getting a mkdir cannot create .ssh directory already exist error?
Any tips on setting up passwordless SSH into a raspberry pi from windows (Visual Studio Code specifically)
If using Win 10 or above, the same steps should apply. Or are you using putty?
@@TonyTeachesTech I was using VSC on windows to connect to my pi but was having trouble with generating SSH keys. Ultimately I realized the keys were not being put into the .ssh folder, and after I moved them I was able to follow your steps with ease!
great content
error publickey denied
1: public ip(given)
2: azure virtual machine
any suggestion?
Try to do a reload-ssh
Still asks me a password
super!
Hi Tony, I tried this from a Mac to PC, but after I input the password (as 4:23 in this video), I got some error codes, and I still need password to ssh. Is there anything I missed?
could it be the path problem?
Thanks a lot
thanks man
thank you
thanks bro
Thanks, you save my life and time jiahahah 🙏
👁👁
I sore you enter a password
HEll yeah
Aajj
:)
This is only for people who are too lazy to type the password right?
It's a more secure way to connect via SSH
Thank you!
You're welcome