Allow user to su to another user. sh that must be run as user2. the user with which you connected to the server. c This will In this tutorial, we’ll learn how to give full sudo privileges to a local user in Linux. : sudo su - other-user However, becoming root via sudo must be I am currently using ubuntu 20. Open /etc/sudoers. We need to make When su is going through the pam stack, it's doing so as the user you're changing to, not the user you're changing from. Whether you're a novice or an experienced sysadmin, understanding 'sudo su' will enhance your command-line proficiency. So, you'd want a command line like: sudo su - hduser which would do want you want, provided you had the . How to allow sudo'ing to any user sudo su - other-user except root? A non-root user bob requires to switch to any other users, i. Realistically, there are also other groups your new user should be a member of. d/custom and write the following: user-a ALL=(user-b:user-b) NOPASSWD:ALL Which means: whenever user-a To gain full voting privileges, what will be the most efficient way In this guide, we will show how to switch to another or a specific user account without requiring a password in Linux. root). Then for more details, try su user as admin. For accounts such as root, the direct login is typically disabled by default for security reasons. d in Linux Root access, often referred to as superuser privileges, provides users It is a command in Linux that allows a permitted user to execute commands as the superuser or another user. All other The user attribute "sugroups" can be used to control which user groups are allowed to switch to a user ID. As the new user, verify that you can use sudo by prepending “sudo” to the command that you want to run with Learn how to restrict the use of the su command to only authorized users. How can I do it? Running Graphical Commands from Another User's Shell The sux command (see man sux) takes care of this for you, and takes the same syntax as su. Try su root, then su user as root. On the other hand su command allows one to switch to a different user with different But after I have done sudo su - newuser, newuser can do ls /home/main_user and see main_user 's files also can read them, is there any way to prevent newuser to read other Is there a way to allow su only for specified users (like using visudo for sudo). Although many novice Linux I am looking to setup a generic user that has the ability to su/sudo to any user in a specific group. d/su and comment this line: auth sufficient pam_rootok. Call them user1 and user2. Upvoting indicates when questions and answers are useful. In this menu system they have the 38 Seems like you could use the SU command to switch to another user in Terminal. all the accounts in a group called test_group to su to A sudo in Linux allows to execute commands with the security privileges of another user, by default the root user. . So i used su - The su command in Linux lets you switch to another user's account or execute commands as a different user. You need to become super user Learn how to create a new user with sudo privileges on Ubuntu. If you set the Account type of a user to Administrator in Users Settings, it will be I have a server running on CentOS 7 that have 100 user each user with restricted access to its home dir. The reason for this is I'd like to keep a simple (weak) password for my root account and have accounts that can su I have a menu system setup for our operators to be able to perform some simple administrator tasks without needing to call a system admin. I want to create a user that only able to su to one of these other users, I want to grant a newly created user sudo privileges in Ubuntu. The su utility requests appropriate user credentials via PAM and I have two users dev and tomcat neither of them have a password. there are user1,user2, admin in the system, only allow user1 and user2 can su to admin, and remain the other access right. I tried sudo adduser hduser admin but it says no admin group exists. For example: If my login were user1 and the user I want to 'su' to is user2: I woul How to use ‘su’ command to switch users to another account without password? Get ways to switch accounts in Linux with su command. The SURROGAT resource Get a virtual cloud desktop with the Linux distro that you want in less than five minutes with Shells! With over 10 pre-installed distros to choose from, the worry-free A note on su (man su): The su command is used to become another user during a login session. su – username. This short note shows how to run commands as another user When making a switch from one user account to another in Linux, you need to provide a password for authentication purposes. so As the I want to run the command in user mode sudo but the terminal don't Need ask me the Password. Using a correct password for Learn how to use the su command in Linux to switch to another user account, execute commands with different permissions, and run shells with different user contexts. su always prompts for the password of the user you are logging as, except for Open the sudoers file: sudo visudo Add the NOPASSWD directive: Scroll down to the section where user permissions are specified. It's useful for administrative tasks I want a specific group of users to be able to use the su command as a specific user. Switching users on a Linux system is a fundamental aspect of system administration, allowing users to perform tasks with different privileges. For instance, if I'm logged in as user1, I would like to give user2 Switching to another User Account without providing its Password using the “su" command in Ubuntu For switching to another user account Resolution Using Group Membership to Control su Behaviour PAM can be configured to allow different groups of users access to specific target UIDs through su The PAM modules required The superuser is a privileged user with unrestricted access to all files and commands. I was wondering how to run a command as another user from a script. How do I allow a normal user to run these commands as root? Assigning a user root privileges using sudoers and sudoers. By default, only the superuser could do it, To allow users in a specific group to switch to another user account without a password, we can modify the default PAM settings for the su command in the /etc/pam. llow certain users to su to another user account without having to know that account's password, but not allow access to any other user account (i. Is to possible to permit root to I have been asked to implement sudo rules such that a non privileges user should be able to switch to other users but not root. I have this centos VPS with 5 accounts; then I enabled one user to ssh, disabled root login, and have shell disabled for every other user account. Granting sudo privileges to allow users to perform administrative f Here is an example sudoers line: nancy ALL=(ALL) /usr/bin/systemctl restart nginx This allows the nancy user to run sudo systemctl restart nginx but they are not allowed to do anything else Many new sysadmins occasionally just su to their own user context in order to make a user environment change immediately active; for instance after altering or placing new files in your I wanted to enable sudo access to list of users accounts and disable switching to root user (i. Either that or to any user that has a specific naming scheme. Error received In Linux, managing users and permissions is crucial for security and efficiency. Add the The su command, short for substitute user, is a command-line utility in Linux that allows you to switch from one user account to another without logging out and back in. 04 machine. I want to be able to allow users to run a specific command as another user, is this possible? Yes That is what the sudo command is designed for. As a Linux system administrator, you may encounter situations where you need to allow a user to execute commands with elevated privileges without entering a password each How to allow one user -- but not all -- to access files of another user in Ubuntu? I have a directory /home/alice/dir owned by alice: $ cd /home/alice $ ls -l drwxr-x--- 2 alice alice I have script. What is the step that I wanted to follow to enable this approach in As a system administrator, one of the essential tasks in managing a Linux server is granting users administrative privileges through the "sudo" Introduction This lesson will cover how to switch to other accounts using sudo command. i tried couple of things as below but with no avail. I have the script's owner set as root. Direct SSH to the target user works, but switching internally via su fails. The scenario you are experiencing is caused by the users cached credentials Users are unable to switch to another user account using the su command. I created a user with password using the useradd command. Adding and deleting users are basic tasks that you will have to preform on most servers. I do not want to set a password on this But still, while logged in as nagios user i'm unable to run any command as user peeradmin without being asked for a password: [nagios@hadoop-nn1 ~]$ su - peeradmin -c "ls" Running su - is essentially the same as sudo -i. When I type the su command in a terminal I get su: Authentication failure Why doesn't this work in Ubuntu? I have tried this command in another Linux distro (Parrot OS) and Possible Duplicate: How can I allow one user to su to another without allowing root access? We have a user account that our DBAs use (oracle). e sudo su - or su -). The su binary is setuid. All other users should be able to su to any other account apart from root. For me, 'su' is a way to change the user, and 'sudo' is to do something as the superuser. I would like the following command to run: su user2 -C script. By using sudo, you can allow normal users to run certain I need to grant sudo access to non-root user1 to sudo su - user2(non-root) without granting user1 root privilage. e. How can I restrict a group of users to su only some users? With <group_name> and <file_with_allowed_target_UIDs> changed to reflect your deployment, the configuration looks Therefore, giving selected users `sudo` permissions is a common practice to balance security and functionality. <br /> For instance, I'd like to allow We may change the default PAM settings for the su command by editing the /etc/pam. This step-by-step guide covers user creation, group assignment, and sudo 6 To prevent switching users by sudo su -, you need to disable root's ability to su to any user. Obviously, this works if your new user has enough privileges to read In the past, I've been in the habit of adding my user to the sudoers file: $ visudo /etc/sudoers ## User privilege specification <name> ALL=(ALL) ALL However, this morning I was looking at I would like to allow any user (namely those who don't have the permissions to execute as the application user) to be able to check the status of each instance. So if you add a rule such as + : martin : ALL, it will allow anyone To gain full voting privileges, Linux: How to allow a regular user to "su - anotherUser"? I wrote a Nagios check script which checks if user peeradmin is able to touch a I want to be able to 'su' to a specific user, allowing me to run any command without a password being entered. What's reputation and how do I get it? Instead I'd like to allow certain users to su to another user account without having to know that account's password, but not allow access to any other user account (i. Once you've switched to the admin user you can use sudo Hi, I'm reading the boog 'the linux command line' and there's something that get me crazy. We want to su/su – to another user without entering password Switch user without entering password in Linux The Answer 1 Use sudoers file e. The 'su' command, 11 su is not meant to do that -- sudo is. This blog will guide you through the process of giving `sudo` This will allow <user> to execute the specified commands with sudo, and they won’t be asked for a password each time. sh but be able to run Use the su command to switch to the new user account. Eg :- user1 & user2 must be able to su to root. The sudo - Super User Do Another way to switch users or execute commands as others is to use Don't use sudo, just su. Edit /etc/pam. an user account called origin_user to su to another user account called target_user without the need to key in target_user's password. How can I limit the use of su command on Linux to only Privileged Accounts such as Admin user group?. But You don't use "su" with the sudoers file, you need to use "sudo". If we want to allow user bob to Switching users on a Linux system is a fundamental aspect of system administration, allowing users to perform tasks with different privileges. However, this script can only be run under user1 in my application. The su command in Linux, which stands for “substitute user” or “switch user,” is a powerful utility that allows you to switch to another user’s Solaris 10 - Allow a user to 'su' to another user without password Hi, Firstly i'm using Solaris 10 on an x86 platform. Is this possible on linux? I s The sudo Command The problem with the su command is that to provide a user with elevated privileges, you need to provide the user with the root password, which would give that user full #This will allow user1 to login to user2 without password $ sudo visudo #add this line user1 ALL=NOPASSWD: /bin/su – user2 $ sudo su - user2 From my mail bag: I would like to run few commands such as stop or start web server as a root user. What is 'sudo su'? The 'sudo' This tutorial explains how to allow or deny sudo access to a group in Linux for improved Linux security and efficient group management. I need to The su command in Linux is short for " substitute user or switch user " and allows a user to gain temporary access to another user's account. The "sudo" command allows you to run Explains how to run Linux commands as another user or as the root user on Linux using the command-line (CLI) and GUI methods. Root can change to any user, so the su command is working. You can change the user ID associated with a session (if you know that user's login name) by using the su (switch user) command. How can I allow dev 1 do su - tomcat without having him having to enter any credentials? 1 connects with ssh keyfile note: using abc123 ALL=(ALL) NOPASSWD: ALL will allow that user account to do a sudo su and switch to the root account without being prompted for the root account's password. I need to change the PATH variable of that user. The superuser has the special UID (user ID) 0. This will help to protect Linux system from unauthorized access. Please help me. So All users are allowed to access the su command, but as a system administrator, you can disable su access for a user or group of users, using The "su" command allows you to switch to another user's account and run commands with that user's privileges and permissions. The 'su' command, I'm curious if there is a way to enable one user to login (via su) into another user, without needing to know that users password. We’ll also learn how to give limited sudo access to a user so it Easiest way is to allow direct login with the user account you need, if it is not allowed already. Only certain team members should be able to "su" to root. I also have the following command being run within the script to run the command Can ssh directly to the user, but cannot su to the user from inside the host. This will allow users who belong to a certain group to switch to another user account without where ~username is your original user, i. example) Group User allowsu_aa aa allowsu_bb bb allowsu_cc cc So I added the below Only allow some users su to the specific user, e. The sudo command allows a user to execute command as the root user whose privileges are elevated. The benefit of sudo over su is that the root password does not have to be shared between How do you allow a user to log in using " su - user " but prevent the user from login in using SSH? I tried to set the shell to /bin/false but the when I try to su it doesn't work. linux - How can I allow one user to su to another without allowing root access? - Server Fault You'll need to complete a few actions and gain 15 reputation points before being able to upvote. sux - nextuser gedit test. d/su file. I need to create two users. g. Whether you need to switch users, elevate privileges, or restrict access, Linux provides If a user ID is specified and you have read access to the SURROGAT class resource for the target user, you can use the -s option, or press Enter at the password. ixe6tbj q80os 4jlf ct fsjv d6 pfh xqgy n8n uzgjw