Sudo -s without password prompt Post: 302751519

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Top Forums UNIX for Dummies Questions & Answers Sudo -s without password prompt Post 302751519 by RudiC on Friday 4th of January 2013 05:15:17 AM

01-04-2013

Registered User

There's no silver bullet for your problem. If compliant to your site's policy, you could disable the authentication requirement (cf. man sudoers):

Quote:

Authentication and Logging
The sudoers security policy requires that most users authenticate themselves before they can use sudo. A password is not required if the invoking user is root, if the
target user is the same as the invoking user, or if the policy has disabled authentication for the user or command.

You could use the -A option (cf. man sudo):

Quote:

sudo accepts the following command line options:

-A Normally, if sudo requires a password, it will read it from the user's terminal. If the -A (askpass) option is specified, a (possibly graphical) helper
program is executed to read the user's password and output the password to the standard output.

You finally could remove the reason why you need to switch to user B - adapt e.g. permissions of commands and files. Again, if compliant.

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LEARN ABOUT DEBIAN

mtail

MTAIL(1)							   User Commands							  MTAIL(1)

NAME

       mtail - tail variant designed for web developers monitoring logfiles

SYNOPSIS

       mtail [options]	<file>...

DESCRIPTION

       MonkeyTail  allows  a  user to tail multiple files on both local and remote hosts and clearly marks inactivity by putting 5 newlines in the
       output whenever a pause in output over 3 seconds is detected.

       MonkeyTail is implemented a fairly simple wrapper script around standard tail, ssh, and sudo.

OPTIONS

       -q     Quiet mode

       --quiet
	      "    "

       -n     Output the last N lines of each file before tailing (defaults to 0)

       <file>...
	      Files to tail.

	      These can specified in the following ways:

       @<groupname>
	      - expands the group (from .mtailrc) to a list of

	      files to tail

       <filename>
	      - tails a local file.

       +<filename>		- attempts to sudo and tail a local file (will
	      prompt for pwd if required).

       <remotehost>:<filename>
	      - attempts to invoke tail via ssh on a remote

	      host.

       +<remotehost>:<filename> - attempts to invoke sudo tail via ssh on a
	      remote host (will prompt for pwd if required).

SEE ALSO

       mtailrc(5), tail(1)

AUTHOR

       Martyn Smith <martyn@dollyfish.net.nz>

mtail								     May 2008								  MTAIL(1)

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