Passwordless ssh still asks for password when running as subprocess

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I had setup passwordless ssh (keygen) to access my remote workspace from my personal laptop. On the remote server, I do use an account with a password to connect. Setting up public/private key authentication allowed me to connect without having to type this password.



The Python script I am running uses subprocess.Popen() to ssh into this remote workspace again. However, it is not a passwordless ssh during this. I have checked my permissions and have tried to delete and recreate the keys, yet this still happens.



Below is the relevant piece of Python code.



subprocess.Popen(['ssh', machine_addr, 'cd ' + workspace +
'; python dispynode.py --serve 1 --clean --dest_path_prefix dispytmp_' + str(i)])




ssh python




share|improve this question





















  • What do you mean when you say passwordless? The account you are trying to log in is really passwordless? Are you using ip based authentication? Are you using public/private key authentication?
    – andcoz
    Jun 14 at 15:23











  • I have clarified what I meant by passwordless. I am using key authentication.
    – jg925
    Jun 14 at 15:25






  • 1




    Is your key passphrase protected? Is the password ssh asks the remote host password or the key passphrase?
    – andcoz
    Jun 14 at 15:41











  • Before I set up the keys, I used a password to access the server.
    – jg925
    Jun 14 at 16:05






  • 1




    Are you using ssh-agent on the client to manage the SSH keys? If so, are you executing the Python script in an environment where the SSH_AUTH_SOCK environment variable is available? Are you executing your Python script as yourself or as another user?
    – Kusalananda
    Jun 14 at 16:09















up vote
1
down vote

favorite












I had setup passwordless ssh (keygen) to access my remote workspace from my personal laptop. On the remote server, I do use an account with a password to connect. Setting up public/private key authentication allowed me to connect without having to type this password.



The Python script I am running uses subprocess.Popen() to ssh into this remote workspace again. However, it is not a passwordless ssh during this. I have checked my permissions and have tried to delete and recreate the keys, yet this still happens.



Below is the relevant piece of Python code.



subprocess.Popen(['ssh', machine_addr, 'cd ' + workspace +
'; python dispynode.py --serve 1 --clean --dest_path_prefix dispytmp_' + str(i)])




ssh python




share|improve this question





















  • What do you mean when you say passwordless? The account you are trying to log in is really passwordless? Are you using ip based authentication? Are you using public/private key authentication?
    – andcoz
    Jun 14 at 15:23











  • I have clarified what I meant by passwordless. I am using key authentication.
    – jg925
    Jun 14 at 15:25






  • 1




    Is your key passphrase protected? Is the password ssh asks the remote host password or the key passphrase?
    – andcoz
    Jun 14 at 15:41











  • Before I set up the keys, I used a password to access the server.
    – jg925
    Jun 14 at 16:05






  • 1




    Are you using ssh-agent on the client to manage the SSH keys? If so, are you executing the Python script in an environment where the SSH_AUTH_SOCK environment variable is available? Are you executing your Python script as yourself or as another user?
    – Kusalananda
    Jun 14 at 16:09













up vote
1
down vote

favorite









up vote
1
down vote

favorite











I had setup passwordless ssh (keygen) to access my remote workspace from my personal laptop. On the remote server, I do use an account with a password to connect. Setting up public/private key authentication allowed me to connect without having to type this password.



The Python script I am running uses subprocess.Popen() to ssh into this remote workspace again. However, it is not a passwordless ssh during this. I have checked my permissions and have tried to delete and recreate the keys, yet this still happens.



Below is the relevant piece of Python code.



subprocess.Popen(['ssh', machine_addr, 'cd ' + workspace +
'; python dispynode.py --serve 1 --clean --dest_path_prefix dispytmp_' + str(i)])




ssh python




share|improve this question













I had setup passwordless ssh (keygen) to access my remote workspace from my personal laptop. On the remote server, I do use an account with a password to connect. Setting up public/private key authentication allowed me to connect without having to type this password.



The Python script I am running uses subprocess.Popen() to ssh into this remote workspace again. However, it is not a passwordless ssh during this. I have checked my permissions and have tried to delete and recreate the keys, yet this still happens.



Below is the relevant piece of Python code.



subprocess.Popen(['ssh', machine_addr, 'cd ' + workspace +
'; python dispynode.py --serve 1 --clean --dest_path_prefix dispytmp_' + str(i)])





ssh python





share|improve this question












share|improve this question




share|improve this question








edited Jun 14 at 16:02
























asked Jun 14 at 15:14









jg925

62




62











  • What do you mean when you say passwordless? The account you are trying to log in is really passwordless? Are you using ip based authentication? Are you using public/private key authentication?
    – andcoz
    Jun 14 at 15:23











  • I have clarified what I meant by passwordless. I am using key authentication.
    – jg925
    Jun 14 at 15:25






  • 1




    Is your key passphrase protected? Is the password ssh asks the remote host password or the key passphrase?
    – andcoz
    Jun 14 at 15:41











  • Before I set up the keys, I used a password to access the server.
    – jg925
    Jun 14 at 16:05






  • 1




    Are you using ssh-agent on the client to manage the SSH keys? If so, are you executing the Python script in an environment where the SSH_AUTH_SOCK environment variable is available? Are you executing your Python script as yourself or as another user?
    – Kusalananda
    Jun 14 at 16:09

















  • What do you mean when you say passwordless? The account you are trying to log in is really passwordless? Are you using ip based authentication? Are you using public/private key authentication?
    – andcoz
    Jun 14 at 15:23











  • I have clarified what I meant by passwordless. I am using key authentication.
    – jg925
    Jun 14 at 15:25






  • 1




    Is your key passphrase protected? Is the password ssh asks the remote host password or the key passphrase?
    – andcoz
    Jun 14 at 15:41











  • Before I set up the keys, I used a password to access the server.
    – jg925
    Jun 14 at 16:05






  • 1




    Are you using ssh-agent on the client to manage the SSH keys? If so, are you executing the Python script in an environment where the SSH_AUTH_SOCK environment variable is available? Are you executing your Python script as yourself or as another user?
    – Kusalananda
    Jun 14 at 16:09
















What do you mean when you say passwordless? The account you are trying to log in is really passwordless? Are you using ip based authentication? Are you using public/private key authentication?
– andcoz
Jun 14 at 15:23





What do you mean when you say passwordless? The account you are trying to log in is really passwordless? Are you using ip based authentication? Are you using public/private key authentication?
– andcoz
Jun 14 at 15:23













I have clarified what I meant by passwordless. I am using key authentication.
– jg925
Jun 14 at 15:25




I have clarified what I meant by passwordless. I am using key authentication.
– jg925
Jun 14 at 15:25




1




1




Is your key passphrase protected? Is the password ssh asks the remote host password or the key passphrase?
– andcoz
Jun 14 at 15:41





Is your key passphrase protected? Is the password ssh asks the remote host password or the key passphrase?
– andcoz
Jun 14 at 15:41













Before I set up the keys, I used a password to access the server.
– jg925
Jun 14 at 16:05




Before I set up the keys, I used a password to access the server.
– jg925
Jun 14 at 16:05




1




1




Are you using ssh-agent on the client to manage the SSH keys? If so, are you executing the Python script in an environment where the SSH_AUTH_SOCK environment variable is available? Are you executing your Python script as yourself or as another user?
– Kusalananda
Jun 14 at 16:09





Are you using ssh-agent on the client to manage the SSH keys? If so, are you executing the Python script in an environment where the SSH_AUTH_SOCK environment variable is available? Are you executing your Python script as yourself or as another user?
– Kusalananda
Jun 14 at 16:09
















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