System user without login and password but only allow sudo for one user












0














I'm currently trying to set up a system user on my Ubuntu 18.04.1 LTS server to run a specific service from its home directory and be used with sudo -u USER to execute a command sometimes.



I've created the user with this command:



sudo useradd -d /opt/USER -m -r -s /usr/sbin/nologin USER


And passwd -S USER shows this:



USER L 12/30/2018 -1 -1 -1 -1


First of all, I don't understand why the password is L (locked) instead of not set at all (NP). Not that it matters, I think, since I don't want to login as that user anyway.



Now, I want to be able to run a command as that user, but only me.
I can use sudo -u USER echo Test without issues, but anyone can run that command. Restricting access to sudo to only my account is currently not possible.
How can I restrict sudo to only myself with that user?










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  • Try adding that user to the sudoers group so only both of you can sudo!
    – George Udosen
    Dec 30 '18 at 12:37










  • And I don't think everyone can do sudo -u!
    – George Udosen
    Dec 30 '18 at 12:50
















0














I'm currently trying to set up a system user on my Ubuntu 18.04.1 LTS server to run a specific service from its home directory and be used with sudo -u USER to execute a command sometimes.



I've created the user with this command:



sudo useradd -d /opt/USER -m -r -s /usr/sbin/nologin USER


And passwd -S USER shows this:



USER L 12/30/2018 -1 -1 -1 -1


First of all, I don't understand why the password is L (locked) instead of not set at all (NP). Not that it matters, I think, since I don't want to login as that user anyway.



Now, I want to be able to run a command as that user, but only me.
I can use sudo -u USER echo Test without issues, but anyone can run that command. Restricting access to sudo to only my account is currently not possible.
How can I restrict sudo to only myself with that user?










share|improve this question







New contributor




Foxmulder2 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.




















  • Try adding that user to the sudoers group so only both of you can sudo!
    – George Udosen
    Dec 30 '18 at 12:37










  • And I don't think everyone can do sudo -u!
    – George Udosen
    Dec 30 '18 at 12:50














0












0








0


1





I'm currently trying to set up a system user on my Ubuntu 18.04.1 LTS server to run a specific service from its home directory and be used with sudo -u USER to execute a command sometimes.



I've created the user with this command:



sudo useradd -d /opt/USER -m -r -s /usr/sbin/nologin USER


And passwd -S USER shows this:



USER L 12/30/2018 -1 -1 -1 -1


First of all, I don't understand why the password is L (locked) instead of not set at all (NP). Not that it matters, I think, since I don't want to login as that user anyway.



Now, I want to be able to run a command as that user, but only me.
I can use sudo -u USER echo Test without issues, but anyone can run that command. Restricting access to sudo to only my account is currently not possible.
How can I restrict sudo to only myself with that user?










share|improve this question







New contributor




Foxmulder2 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.











I'm currently trying to set up a system user on my Ubuntu 18.04.1 LTS server to run a specific service from its home directory and be used with sudo -u USER to execute a command sometimes.



I've created the user with this command:



sudo useradd -d /opt/USER -m -r -s /usr/sbin/nologin USER


And passwd -S USER shows this:



USER L 12/30/2018 -1 -1 -1 -1


First of all, I don't understand why the password is L (locked) instead of not set at all (NP). Not that it matters, I think, since I don't want to login as that user anyway.



Now, I want to be able to run a command as that user, but only me.
I can use sudo -u USER echo Test without issues, but anyone can run that command. Restricting access to sudo to only my account is currently not possible.
How can I restrict sudo to only myself with that user?







command-line permissions login sudo password






share|improve this question







New contributor




Foxmulder2 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.











share|improve this question







New contributor




Foxmulder2 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.









share|improve this question




share|improve this question






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asked Dec 30 '18 at 12:29









Foxmulder2

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New contributor





Foxmulder2 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.






Foxmulder2 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.












  • Try adding that user to the sudoers group so only both of you can sudo!
    – George Udosen
    Dec 30 '18 at 12:37










  • And I don't think everyone can do sudo -u!
    – George Udosen
    Dec 30 '18 at 12:50


















  • Try adding that user to the sudoers group so only both of you can sudo!
    – George Udosen
    Dec 30 '18 at 12:37










  • And I don't think everyone can do sudo -u!
    – George Udosen
    Dec 30 '18 at 12:50
















Try adding that user to the sudoers group so only both of you can sudo!
– George Udosen
Dec 30 '18 at 12:37




Try adding that user to the sudoers group so only both of you can sudo!
– George Udosen
Dec 30 '18 at 12:37












And I don't think everyone can do sudo -u!
– George Udosen
Dec 30 '18 at 12:50




And I don't think everyone can do sudo -u!
– George Udosen
Dec 30 '18 at 12:50










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