I have some weird issues regarding SSH access. I just reinstalled a brand new Mac with macOS Mojave.
After configuring my SSH keys, I can connect to both of my Linux servers (Ubuntu 18.04 LTS and Ubuntu 16.04). Connection via terminal without password runs without any problems however, when I try to use other software to connect, the connection fails.
My pub key is added to the Ubuntu authorized_keys, user matches etc. I still have my previous laptop, running Mojave and SSH without any problem.
I tried setting up an SSH connection with robo3T, commanderOne and cyberduck. All of these fail while terminal succeeds.
Don't know where to search for this problem?
UPDATE
After a long search, I copied private and public keys from my previous laptop, which seems to be a solution to the problem. I'm still curious about why terminal connection works and third party apps don't.