Difference between revisions of "ssh failing with debug message "no mutual signature algorithm""
(Created page with "==problem== ssh from a newer client to an older server with rsa keys is failing and asking for a password via the "keyboard-interactive" method. ==versions== server openssh ve...") |
Revision as of 17:22, 29 November 2023
Contents |
problem
ssh from a newer client to an older server with rsa keys is failing and asking for a password via the "keyboard-interactive" method.
versions
server openssh version: 6.7_p1 client openssh version: 9.2p1-2
error
when running the ssh command with "-vvv", the following debug message snippet appears...
debug3: authmethod_is_enabled publickey debug1: Next authentication method: publickey debug1: Offering public key: /home/jsmith/.ssh/id_rsa.pub RSA SHA256:+untiuu11l/g3ziD0sdffrUHL+JsyasdfYdsXL/OJE explicit debug1: send_pubkey_test: no mutual signature algorithm debug2: we did not send a packet, disable method debug3: authmethod_lookup keyboard-interactive debug3: remaining preferred: password debug3: authmethod_is_enabled keyboard-interactive debug1: Next authentication method: keyboard-interactive
solution
add line...
PubkeyAcceptedKeyTypes +ssh-rsa
to file: ~/.ssh/config
