disconnected: no supported authentication methods available (server sent: publickey, gssapi-with-mic)

disconnected: no supported authentication methods available (server sent: publickey, gssapi-with-mic)

putty no supported authentication methods available sent: publickey
server sent: publickey,gssapi-keyex,gssapi-with-mic
scp permission denied (publickey,gssapi-keyex,gssapi-with-mic)
raspberry pi no supported authentication methods
an error occurred while adding the port forward no more authentication methods available
server sent: publickey,keyboard-interactive
no supported authentication methods available azure
putty gssapi-keyex

I don't know what is happening.

I have been able to connect to the server for a couple of days without problems and suddendly I got a frozen window using putty. After that, each time I try to connect, I receive this message:

disconnected: no supported authentication methods available (server sent: publickey, gssapi-with-mic)

I am using putty and puttyagent for private key. I already have uploaded the public key to the server and I was able to connect half an hour ago.

How can I check why it is failing? I haven't change the user or password or anything.


I had the same issue after creating a Centos 7 vm using Vagrant. In the sshd_config file it said "PasswordAuthentication no". Changing that to "PasswordAuthentication yes" and a restart of sshd solved it for me.

disconnected: no supported authentication methods available , message was: "PuTTY Fatal Error" - "No supported authentication methods available (server sent: public key,gssapi-keyex,gssapi-with-mic)". No supported authentication methods available Error: Disconnected: No supported authentication methods available (server sent: publickey,gssapi-keyex,gssapi-with-mic)


Well...

In the end, I had to delete all my keys, upload them again and wait a half an hour more or less. I don't know what happened but now it works again.

AWS ec2 instance "no supported authentication methods available , AWS ec2 instance "no supported authentication methods available(server sent: publickey,gssapi-keyex,gssapi-with-mic)". Welcome to LinuxQuestions.org, a friendly and active Linux Community. You are currently viewing LQ as a guest. By joining our community you will have the ability to post topics, receive our newsletter, use the advanced search, subscribe to threads and access many other special features.


Copy the content in your pem file and create another pem file and paste the content. Sounds lame... but it works !!

SOLVED, Disconnected: No supported authentication method available (server sent: publickey, gssapi-keyex, gssapi-with-mic) and when i connect on  disconnected: no supported authentication methods available (server sent: publickey, gssapi-with-mic) I am using putty and puttyagent for private key. I already have uploaded the public key to the server and I was able to connect half an hour ago.


No supported authentication methods available (server sent , Disconnected: No supported authentication methods available (server sent: publickey,gssapi-keyex,gssapi-with-mic) Receiving error When  Disconnected: No supported authentication methods available (server sent: publickey,gssapi-keyex,gssapi-with-mic) I feel like it might be a permissions issue for the kronos use accessing the authorized_keys.


I had the same issue while connecting to openshift Labs. Stopped working for a new server. I had to Upload public key to OPENTLC again and it worked with the Putty

In PuTTY, under Category on the left, navigate to Connection → SSH → Auth.

On the right under Authentication parameters, click Browse and locate the private key saved from PuttyGen

No Supported Authentication methods available(Server sent , Disconnected: No Supported Authentication methods available(Server sent: publickey,gssapi-keyex,gssapi-with-mic). Actually It happened  For transferring .iso file from Windows(base pc) platform to Linux Virtual Machine( VMware workstation) , i tried to use winscp but am unable to connect , when i try to connect it shows "Disconnected: No supported authentication methods available" .


SSH Public Key, When I connect using putty or WinSCP, I get an error saying No supported authentication methods available (server sent public key). Error: Disconnected: No supported authentication methods available (server sent: publickey,gssapi-keyex,gssapi-with-mic) Error: Could not connect to server I think this is a result from the same problem.


Putty error: No supported authentication methods available (server , with the newly created user putty returns back with a error saying: “No supported authentication methods available (server sent: publickey)” FATAL ERROR: Disconnected: No supported authentication methods available (server sent: publickey) 0 Authentication is not working from PuTTY command line on ngrok


How to Solve “Disconnected: No supported authentication methods , How to Solve “Disconnected: No supported authentication methods available (​server sent: publickey)” with Ubuntu AWS EC2. Omar Merghany.