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Accessing server with public/private key authentication failed

risocync
Helo, this is my first thread and want to ask for help if anyone here has the same case This is the case: Last week I can normally access my server using bitvise SSH client with password authentication method, but today I want to harden ssh with public key method which I can't configure correctly OR there must be misconfiguration with my public key setup, either at server side or client side. (Yes, I figured out that I don't know how to setup public/private key method from cpanel server with bitvise SSH client) This is the error log from bitvise 14:36:22.109 Connection established. 14:36:22.321 Server version: SSH-2.0-OpenSSH_5.3 14:36:22.321 First key exchange started. Cryptographic provider: Windows CNG (x86) with additions 14:36:22.779 Received host key from the server. Algorithm: RSA, size: 2048 bits, SHA-256 fingerprint: 1xdysnwZXHpQQlIndtt5bVILooSGvziowjc2gqs3ZX0. 14:36:22.808 First key exchange completed using diffie-hellman-group14-sha1 (group 14, 2048-bit). Session encryption: aes256-ctr, integrity: hmac-sha2-256, compression: none. 14:36:23.020 Attempting publickey authentication. Testing client key 'Profile 1' for acceptance. 14:36:23.226 Authentication failed. The key has been rejected. Remaining authentication methods: 'publickey,gssapi-keyex,gssapi-with-mic'. This is what I want to achieve I want to gain access into my server using bitvise SSH client, with public/private key method instead of password authentication What I have done before asking I have read a lot of tutorial on how to use public/private key method (which maybe I don't really get it right) I have generate the key on both size, and try to connect to the server I have whitelist my ip address I have changed the bitvise SSH client to putty, and got no difference Any kind of response or how to solve this case will be very appreciated Thank you

Comments

4 comments

Date Votes
  • cPanelLauren
    Hello @risocync You mentioned you read some tutorials but were you able to check out the documentation here: Manage root's SSH Keys - Version 82 Documentation - cPanel Documentation It should provide the exact steps you need to do this. Then for the portion which will require Bitvise you should be able to get the information you need here: Public keys in SSH | Bitvise
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  • risocync
    Hello @risocync You mentioned you read some tutorials but were you able to check out the documentation here:

    Helo
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  • cPanelLauren
    Hi @risocync I wonder if the issue may have just been that SSH needed to be restarted, which would make sense after an update if the service had been updated. That's about all I can speculate though without more information, none the less I am glad to hear that it is now working.
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  • risocync
    Hi @risocync I wonder if the issue may have just been that SSH needed to be restarted, which would make sense after an update if the service had been updated. That's about all I can speculate though without more information, none the less I am glad to hear that it is now working.

    Yes, I thought about it too, but before I decided to ask to cpanel forum, I did several basic troubleshoot like sshd service restarted, reboot the server, changing SSH port, checking permission settings on public key file, checking firewall, whitelisting ip, change network connection (from my end) and got no good result But in the end it solved, and I need to learn more from now on.
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