I have an Ubuntu 16.04 and a debian machine, both connected through a network. On my Ubuntu machine there is service running, which needs to reboot the debian computer when starting the service. The service is invoked by sudo service debian_client start and is doing a bunch of commands like ssh [email protected] reboot on the debian machine. The problem is, I need to type in the password once for every ssh command, which is very annoying.
I tried then to go to ~/.ssh on the Ubuntu machine and did
ssh-keygen -t rsa
ssh-copy-id [email protected]
After that I logged in via ssh [email protected] which works without typing a password. But when invoking the ssh command through the service, I still have to type password. Does anybody know why and how to resolve this issue, I can't find help online for that specific problem?
Interesting part, I changed the script to ssh -v [email protected] and compared the output of the script with the output if I do that via bash. The difference is that the script always looks for keys in /root, like the output shows:
...
debug1: Next authentication method: publickey
debug1: Trying private key: /root/.ssh/id_rsa
debug1: Trying private key: /root/.ssh/id_dsa
debug1: Trying private key: /root/.ssh/id_ecdsa
debug1: Trying private key: /root/.ssh/id_ed25519
debug1: Next authentication method: password
If I do it myself via bash, the output reads:
debug1: Next authentication method: publickey
debug1: Offering RSA public key: user@ubuntucomputer
debug1: Server accepts key: pkalg ssh-rsa blen 279
debug1: Authentication succeeded (publickey).
and I am logged in without any password typed. Can anybody help, why is my service looking for the key at /root/? Thank you very much.
My guess is that:
debug1: Offering RSA public key: user@ubuntucomputer)Possible quick way to make password less authentication working is:
cd ~; sudo cp -R .ssh /root/