Hi, I am having issues with using SSH keys (ed25519) on my Guacamole 1.6.0 server running on Docker. I have checked the following:
- It is using the correct ssh keys - Passphrase is correct (verified using ssh-keygen -y) - Using the right user Logs: [guacd_compose] 2026-05-25T19:01:07.547187311Z guacd[1]: INFO: Connection "$f971f604-03c2-477d-b00f-e9c7f8df2349" removed.[guacd_compose] 2026-05-25T19:01:38.846134013Z guacd[1]: INFO: Creating new client for protocol "ssh" [guacd_compose] 2026-05-25T19:01:38.847979163Z guacd[1]: INFO: Connection ID is "$5b546959-3b10-47ab-9f84-97141bc7d87f" [guacd_compose] 2026-05-25T19:01:38.858537241Z guacd[222]: INFO: Recording of session will be saved to "/record/recording.2". [guacd_compose] 2026-05-25T19:01:38.858591578Z guacd[222]: INFO: User "@0f2d5c10-7811-410f-af57-bcf41323e008" joined connection "$5b546959-3b10-47ab-9f84-97141bc7d87f" (1 users now present) [guacd_compose] 2026-05-25T19:01:40.771384905Z guacd[222]: INFO: Auth key successfully imported. [guacd_compose] 2026-05-25T19:01:40.935631256Z guacd[222]: WARNING: No known host keys provided, host identity will not be verified. [guacd_compose] 2026-05-25T19:01:41.705948861Z guacd[222]: ERROR: Public key authentication failed: Invalid signature for supplied public key, or bad username/public key combination [guacd_compose] 2026-05-25T19:01:41.710938818Z guacd[222]: INFO: User "@0f2d5c10-7811-410f-af57-bcf41323e008" disconnected (0 users remain) [guacd_compose] 2026-05-25T19:01:41.710963457Z guacd[222]: INFO: Last user of connection "$5b546959-3b10-47ab-9f84-97141bc7d87f" disconnected [guacd_compose] 2026-05-25T19:01:41.866447051Z guacd[1]: INFO: Connection "$5b546959-3b10-47ab-9f84-97141bc7d87f" removed.
signature.asc
Description: OpenPGP digital signature
