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Safely execute custom script parts as sudo

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http://serverfault.com – In /usr/local/bin I've the following script called sdown /usr/local/bin$ cat sdown #!/bin/bash if [ $# -lt 1 ]; then echo "no time set" else sudo shutdown -h $1 fi Permssions are 788: -rwxr-xr-- user user sdown The point is if I run the script it's prompting for the sudo password: /usr/local/bin$ sdown 13:37 [sudo] password for user: Just to make my life even better I'd like to avoid typing in my password for shutting down the computer. I think there're to possibilities I could look for: Allowing execution of the shutdown command without prompting for sudo rights. (sudoers fil (HowTos)

dayu's picture
Submitted by dayu on 04/28/2012 – Made popular on 04/28/2012

Stories similar to Safely execute custom script parts as sudo

I've set up sudo not to prompt for password by editing the sudoers file:

myuser ALL=(ALL:ALL) NOPASSWD: ALL

And it works fine, running sudo with no password prompting. But when entering sudo -v I noticed that it prompted for password, only once.

I want to allow the execution of a mount script for everybody. I'm usually working with a domain user.

I visudoed sudoers to allow a user to run one bash script with a passwordless sudo, which works fine when logged in (also via SSH). However, when I log in via SSH using public key authentication and configure authorized_keys' command="sudo myScript", I am promped for the user password by sudo. Having the script itself use sudo on another program does however work without requiring a password.

Error in Sudo 20 weeks 5 days ago

Hi, I have installed sudo on Solaris 10 (sparc). When I try to add a user I get the following: ---------------------------------------------------------- -bash-3.00$ sudo addusr scarlet sudo sudo: /usr/local/etc/sudoers.d is owned by uid 2, should be 0 Password: ----------------------------------------------------------- I entered a password, thinking it was for the sudo user but it failed.

I would like to permit all my users to shut down  or reboot the machine so i did the following changes issuing sudo visudo:# User privilege specificationroot    ALL=(ALL) ALLsparky ALL=(ALL) ALL # Oh yeah iam a sudorer!ALL ALL=NOPASSWD: /sbin/shutdown# Allow members of group sudo to execute any command# (Note that later entries override this, so you might need to move# it further do

A PHP program I am working with (LConf) calls a script using sudo.

I have allowed the user apache to run the script and have tested with sudo -u apache /usr/local/LConf/lconf_deploy.sh.

I am being prompted for a password when lconf_deploy.sh calls /usr/bin/sudo -u icinga /usr/local/LConf/LConfExport.pl -o /etc/icinga/lconf -v, but have no problems calling lines before or after this line.

After

hi, i have a requirement where i need to sudo to another user in the shell script.suppose consider user A and B, first user A calls a shell script and then i need to sudo to user B which executes another shell script inside the earlier one. also this needs to be automated like while sudo'ing to user B it should not ask for password prompt, password should be read from some file or by any other mea

I'm sorry if I missed an answer here. But I did Google this and couldn't find a straight forward answer.

I want to enable the apache user to run commands as another user, but when I do:

echo "PASSWORD" | sudo -u another_user -S echo "X"

Inside a PHP script, I get:

[sudo] password for apache:

The apache user doesn't have a password, so I can't just output it in order to run sudo.

When I create new Ubuntu 12.10 instances, I typically bootstrap them by manually SSHing onto the machine and editing the sudoers to put a NOPASSWD on the default user (e.g., ec2-user, azureuser, etc.). Then my install scripts can sudo various commands without having to provide a password.

I don't have anything against passwords.