[Linux-disciples] Sudo prompts remotely

[Chung-chieh Shan]

On 2005-10-27T14:00:12-0400, Stephen R Laniel wrote:
> Hmm: Try running a command line
> 
> ssh hostname sudo ls \~
> 
> It'll prompt you for the sudo password on the other end.
> When you start typing your password, it'll appear on the
> screen in the clear. Is there any way to keep that password
> off the screen?
> 
> More generally, this is the problem I'm trying to solve:
> http://laniels.org/weblog/tech/free_software/running_commands_remotely.html
> 
> I want to ensure that no matter what script is being invoked
> remotely, the sudo password will never appear on my screen.

Perhaps you want to pass the following switch to ssh.

     -t      Force pseudo-tty allocation.  This can be used to execute arbi‐
             trary screen-based programs on a remote machine, which can be
             very useful, e.g., when implementing menu services.  Multiple -t
             options force tty allocation, even if ssh has no local tty.

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