askpass_util

NAME

SYNOPSIS

AVAILABILITY

DESCRIPTION

This to avoid interactive password prompting.

The more advanced/secure method for this is using the public- / private-key mechanism, where the private key is stored on the source system and the related public key is stored on the target system where you want to log-in without providing a password.

However, in both cases it is needed to protect the private key file or file where the plain password is saved from unwanted access.

OPTIONS

 

print %ASKPASS_PASSWORD% environment variable to stdout.

ENVIRONMENT

%SSH_ASKPASS%

full path to the askpass_util.exe.

%SSH_ASKPASS_REQUIRE%

set to force to tell ssh, scp and sftp to use the askpass_util.exe to get the password.
 

%ASKPASS_PASSWORD%

plain text password to pass to ssh, scp and sf.

Of course special care is needed on if, where and how to store the plain text password.

EXIT STATUS

0

always.

FILES

EXAMPLES

1) pass password to scp

  set "SSH_ASKPASS=%WA2L_INSTALLDIR%\lib\askpass_util.exe"
  set "SSH_ASKPASS_REQUIRE=force"

  set "ASKPASS_PASSWORD=S3creT"

  scp -p file.txt acme-007:"H:\tmp\transfer"
  scp -p file.txt acme-008:"H:\tmp\input"
  scp -p file.txt acme-009:"H:\tmp\archive"

2) pass password to scp interactively setting the environment variable

  set "SSH_ASKPASS=%WA2L_INSTALLDIR%\lib\askpass_util.exe"
  set "SSH_ASKPASS_REQUIRE=force"

  call "%WA2L_INSTALLDIR%\lib\setv" -p "Password: " -m ASKPASS_PASSWORD

  scp -p file.txt acme-007:"H:\tmp\transfer"
  scp -p file.txt acme-008:"H:\tmp\input"
  scp -p file.txt acme-009:"H:\tmp\archive"

SEE ALSO

NOTES

BUGS

AUTHOR

COPYRIGHT

This is free software; see WA2LSimpleBackup/man/COPYING for copying conditions. There is ABSOLUTELY NO WARRANTY; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.