Symptoms
When trying to connect to BIG-IP via SSH, the connection fails with an error:
Unable to negotiate with <IP> port 22: no matching host key type found. Their offer: rsa-sha2-512,rsa-sha2-256,ssh-dss,ecdsa-sha2-nistp256,ssh-ed25519
This issue is observed only in non FIPS mode.
Impact
The ssh-rsa as a host key algorithm fails to connect to BIG-IP in non FIPS mode.
Conditions
-- SSH connection
-- The algorithm is set to ssh-rsa
-- The BIG-IP system is not operating in FIPS mode
Fix Information
Enabling ssh-rsa as host-key algorithm, in Non-FIPS mode for ssh connections.
