mac_setup

I have code that transfers a file via sftp using JSch. This code works in one of our test environments but doesn't work in another environment. The environment where it doesn't work has FIPS mode enabled but I'm unsure whether or not that is contributing to the problem. In both environments, I'm able to sftp from the command line using the private key that the code is using.

There's some relevant output from JSch and from ssh but I'm not sure what else I can do at this point to move forward. SSH keys and known hosts files both seem to be set up properly.

Here's the output from my app (with IP and RSA key changed):

How do I ssh to a server that requires dual password authentication using Paramiko?

When using a particular user, it first prompts for the user password and then for another password, so my session needs to be interactive. I have done the same using pexpect module to spawn an ssh process on Linux, but since I cannot do that in Windows I need a way to do it using Paramiko.

The server is our product that is a slightly modified version of CentOS. I am writing automation code to test some functionality which requires me to ssh into the server and verify some commands. I am able to login as root user, but for the user I am interested in it asks for a second password.

This is the output from the ssh -vvv command:

Local Setup

I created a public and private SSH key via the ssh-keygen command.

I decided to setup the private key locally first, before setting it up on my repo's gitlab CI.

I setup the public key on the server (in this case, another gitlab repo, but this may change in the future and shouldn't affect the question).

I successfully communicated with the server locally via the following command (in this case I am using SSH via git, but this again may change in the future):

I tried to set up private/public key authentication on my server (CentOS). Here are the steps I made:

1. Generated a public/private keypair with puttygen
2. Copied the public key to the server and appended it with the cat command to the file /root/.ssh/authorized_keys
3. Checked suggested file ownership and permissions for .ssh (700) and .ssh/authorized_keys (600)
4. Restarted the sshd service
5. In the Putty config under Connection > SSH > Auth, selected the privat key

But when I try to connect with Putty, I get the message "Server refused our key". I am prompted for password then, and that works.

I also raised the authentication log level, here is the output for a failed attempt:

I'm having trouble setting up public key authentication for an SSH server on CentOS 6.8. What is strange is that when I login with a postgres user it goes well, but when I login with the 'barman' user which is created automatically by installing barman it always needs password.

The 'postgres' user's home directory and the barman user's home directory are in the same folder. I think the problem has nothing to do with the sshd config, tried to set the barman's home path, the .ssh path and the authorized_keys's permission all the same as postgres. But it still doesn't work . This is what I get after run ssh localhost -vvv: