How a non-root user sudo to another non-root user without password?












0















As root, created a new non-root user on RHEL 7.5



appuser:x:1903:1903:appuser:/home/appuser:/bin/bash


A non-root user to be able to sudo to appuser,



sudo -u appuser



without a password,



What are the changes required on RHEL 7.5?










share|improve this question

























  • That sudo su - appuser is a horrendous security breach: you're giving full root access to the user who has permission to do that. Instead, just give the account permission to get to appuser, so they would sudo -su appuser (here, -su is two flags, -s -u). No need for the su command anywhere.

    – roaima
    Oct 29 '18 at 15:01













  • @roaima Query edited. sudo -u syslog does not work. It asks for the password for current user

    – overexchange
    Oct 29 '18 at 15:05













  • Of course it does. That's what sudo does.

    – roaima
    Oct 29 '18 at 15:28
















0















As root, created a new non-root user on RHEL 7.5



appuser:x:1903:1903:appuser:/home/appuser:/bin/bash


A non-root user to be able to sudo to appuser,



sudo -u appuser



without a password,



What are the changes required on RHEL 7.5?










share|improve this question

























  • That sudo su - appuser is a horrendous security breach: you're giving full root access to the user who has permission to do that. Instead, just give the account permission to get to appuser, so they would sudo -su appuser (here, -su is two flags, -s -u). No need for the su command anywhere.

    – roaima
    Oct 29 '18 at 15:01













  • @roaima Query edited. sudo -u syslog does not work. It asks for the password for current user

    – overexchange
    Oct 29 '18 at 15:05













  • Of course it does. That's what sudo does.

    – roaima
    Oct 29 '18 at 15:28














0












0








0








As root, created a new non-root user on RHEL 7.5



appuser:x:1903:1903:appuser:/home/appuser:/bin/bash


A non-root user to be able to sudo to appuser,



sudo -u appuser



without a password,



What are the changes required on RHEL 7.5?










share|improve this question
















As root, created a new non-root user on RHEL 7.5



appuser:x:1903:1903:appuser:/home/appuser:/bin/bash


A non-root user to be able to sudo to appuser,



sudo -u appuser



without a password,



What are the changes required on RHEL 7.5?







linux rhel sudo users






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited Oct 29 '18 at 15:06







overexchange

















asked Oct 29 '18 at 14:58









overexchangeoverexchange

360517




360517













  • That sudo su - appuser is a horrendous security breach: you're giving full root access to the user who has permission to do that. Instead, just give the account permission to get to appuser, so they would sudo -su appuser (here, -su is two flags, -s -u). No need for the su command anywhere.

    – roaima
    Oct 29 '18 at 15:01













  • @roaima Query edited. sudo -u syslog does not work. It asks for the password for current user

    – overexchange
    Oct 29 '18 at 15:05













  • Of course it does. That's what sudo does.

    – roaima
    Oct 29 '18 at 15:28



















  • That sudo su - appuser is a horrendous security breach: you're giving full root access to the user who has permission to do that. Instead, just give the account permission to get to appuser, so they would sudo -su appuser (here, -su is two flags, -s -u). No need for the su command anywhere.

    – roaima
    Oct 29 '18 at 15:01













  • @roaima Query edited. sudo -u syslog does not work. It asks for the password for current user

    – overexchange
    Oct 29 '18 at 15:05













  • Of course it does. That's what sudo does.

    – roaima
    Oct 29 '18 at 15:28

















That sudo su - appuser is a horrendous security breach: you're giving full root access to the user who has permission to do that. Instead, just give the account permission to get to appuser, so they would sudo -su appuser (here, -su is two flags, -s -u). No need for the su command anywhere.

– roaima
Oct 29 '18 at 15:01







That sudo su - appuser is a horrendous security breach: you're giving full root access to the user who has permission to do that. Instead, just give the account permission to get to appuser, so they would sudo -su appuser (here, -su is two flags, -s -u). No need for the su command anywhere.

– roaima
Oct 29 '18 at 15:01















@roaima Query edited. sudo -u syslog does not work. It asks for the password for current user

– overexchange
Oct 29 '18 at 15:05







@roaima Query edited. sudo -u syslog does not work. It asks for the password for current user

– overexchange
Oct 29 '18 at 15:05















Of course it does. That's what sudo does.

– roaima
Oct 29 '18 at 15:28





Of course it does. That's what sudo does.

– roaima
Oct 29 '18 at 15:28










1 Answer
1






active

oldest

votes


















3














You can edit the "User privilege specification" section of /etc/sudoers, adding:



non-root-user ALL = (appuser) NOPASSWD: ALL


This will allow non-root-user to run all commands as appuser. non-root-user will not be allowed to run commands as root.



Note that errors in /etc/sudoers can make a system unusable. The file should only be edited with:



$ sudo visudo


This special editor checks the sudoers file for errors before saving and refuses to save it if errors are found.






share|improve this answer


























  • But -r--r----- 1 root root 1225 Jun 12 12:04 /etc/sudoers. Do you think this is customised permision?

    – overexchange
    Oct 29 '18 at 15:50













  • E45 error on modifying the file with vi editor

    – overexchange
    Oct 29 '18 at 16:30













  • It looks like -r--r----- is the standard file mode for /etc/sudoers. Refer to my edited answer for how to edit it.

    – fra-san
    Oct 29 '18 at 17:18











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1 Answer
1






active

oldest

votes








1 Answer
1






active

oldest

votes









active

oldest

votes






active

oldest

votes









3














You can edit the "User privilege specification" section of /etc/sudoers, adding:



non-root-user ALL = (appuser) NOPASSWD: ALL


This will allow non-root-user to run all commands as appuser. non-root-user will not be allowed to run commands as root.



Note that errors in /etc/sudoers can make a system unusable. The file should only be edited with:



$ sudo visudo


This special editor checks the sudoers file for errors before saving and refuses to save it if errors are found.






share|improve this answer


























  • But -r--r----- 1 root root 1225 Jun 12 12:04 /etc/sudoers. Do you think this is customised permision?

    – overexchange
    Oct 29 '18 at 15:50













  • E45 error on modifying the file with vi editor

    – overexchange
    Oct 29 '18 at 16:30













  • It looks like -r--r----- is the standard file mode for /etc/sudoers. Refer to my edited answer for how to edit it.

    – fra-san
    Oct 29 '18 at 17:18
















3














You can edit the "User privilege specification" section of /etc/sudoers, adding:



non-root-user ALL = (appuser) NOPASSWD: ALL


This will allow non-root-user to run all commands as appuser. non-root-user will not be allowed to run commands as root.



Note that errors in /etc/sudoers can make a system unusable. The file should only be edited with:



$ sudo visudo


This special editor checks the sudoers file for errors before saving and refuses to save it if errors are found.






share|improve this answer


























  • But -r--r----- 1 root root 1225 Jun 12 12:04 /etc/sudoers. Do you think this is customised permision?

    – overexchange
    Oct 29 '18 at 15:50













  • E45 error on modifying the file with vi editor

    – overexchange
    Oct 29 '18 at 16:30













  • It looks like -r--r----- is the standard file mode for /etc/sudoers. Refer to my edited answer for how to edit it.

    – fra-san
    Oct 29 '18 at 17:18














3












3








3







You can edit the "User privilege specification" section of /etc/sudoers, adding:



non-root-user ALL = (appuser) NOPASSWD: ALL


This will allow non-root-user to run all commands as appuser. non-root-user will not be allowed to run commands as root.



Note that errors in /etc/sudoers can make a system unusable. The file should only be edited with:



$ sudo visudo


This special editor checks the sudoers file for errors before saving and refuses to save it if errors are found.






share|improve this answer















You can edit the "User privilege specification" section of /etc/sudoers, adding:



non-root-user ALL = (appuser) NOPASSWD: ALL


This will allow non-root-user to run all commands as appuser. non-root-user will not be allowed to run commands as root.



Note that errors in /etc/sudoers can make a system unusable. The file should only be edited with:



$ sudo visudo


This special editor checks the sudoers file for errors before saving and refuses to save it if errors are found.







share|improve this answer














share|improve this answer



share|improve this answer








edited Mar 3 at 20:36

























answered Oct 29 '18 at 15:27









fra-sanfra-san

1,8771620




1,8771620













  • But -r--r----- 1 root root 1225 Jun 12 12:04 /etc/sudoers. Do you think this is customised permision?

    – overexchange
    Oct 29 '18 at 15:50













  • E45 error on modifying the file with vi editor

    – overexchange
    Oct 29 '18 at 16:30













  • It looks like -r--r----- is the standard file mode for /etc/sudoers. Refer to my edited answer for how to edit it.

    – fra-san
    Oct 29 '18 at 17:18



















  • But -r--r----- 1 root root 1225 Jun 12 12:04 /etc/sudoers. Do you think this is customised permision?

    – overexchange
    Oct 29 '18 at 15:50













  • E45 error on modifying the file with vi editor

    – overexchange
    Oct 29 '18 at 16:30













  • It looks like -r--r----- is the standard file mode for /etc/sudoers. Refer to my edited answer for how to edit it.

    – fra-san
    Oct 29 '18 at 17:18

















But -r--r----- 1 root root 1225 Jun 12 12:04 /etc/sudoers. Do you think this is customised permision?

– overexchange
Oct 29 '18 at 15:50







But -r--r----- 1 root root 1225 Jun 12 12:04 /etc/sudoers. Do you think this is customised permision?

– overexchange
Oct 29 '18 at 15:50















E45 error on modifying the file with vi editor

– overexchange
Oct 29 '18 at 16:30







E45 error on modifying the file with vi editor

– overexchange
Oct 29 '18 at 16:30















It looks like -r--r----- is the standard file mode for /etc/sudoers. Refer to my edited answer for how to edit it.

– fra-san
Oct 29 '18 at 17:18





It looks like -r--r----- is the standard file mode for /etc/sudoers. Refer to my edited answer for how to edit it.

– fra-san
Oct 29 '18 at 17:18


















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