sudo has an option called NOPASSWD that can be used to specify commands that can be run as sudo without being prompted for the password. For example, to enable user called john to restart Network Manager on an Ubuntu system as any user without being prompted for password, at the line below to sudoers file.
How do I give sudo access to a specific command?
To use this tool, you need to issue the command sudo -s and then enter your sudo password. Now enter the command visudo and the tool will open the /etc/sudoers file for editing). Save and close the file and have the user log out and log back in. They should now have a full range of sudo privileges.
How do I give a user sudo access in Linux?
Steps to Add Sudo User on Ubuntu
- Step 1: Create New User. Log into the system with a root user or an account with sudo privileges. …
- Step 2: Add User to Sudo Group. Most Linux systems, including Ubuntu, have a user group for sudo users. …
- Step 3: Verify User Belongs to Sudo Group. …
- Step 4: Verify Sudo Access.
How do I allow a user to run a specific command in Linux?
You need to use the sudo command which is use to execute a command as another user. It allows a permitted user to execute a command as the superuser or another user, as specified in the /etc/sudoers (config file that defines or list of who can run what) file.
How do I allow a user to sudo to another user?
To run a command as the root user, use sudo command . You can specify a user with -u , for example sudo -u root command is the same as sudo command . However, if you want to run a command as another user, you need to specify that with -u .
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Using sudo.
| Commands | Meaning |
|---|---|
| sudo -u user -s | Start a shell as user. |
How do I add sudo commands?
Adding sudo Users with Root Privileges on a UNIX Client
- Log on to the client computer as root.
- Open the /etc/sudoers configuration file in editable mode by using the following command: visudo.
- Add the sudo user. If you want users to perform all UNIX commands as root users, enter the following: sudouser ALL=(ALL) ALL.
How do I see sudo users in Linux?
You can also use “getent” command instead of “grep” to get the same result. As you see in the above output, “sk” and “ostechnix” are the sudo users in my system.
How do I see users in Linux?
In order to list users on Linux, you have to execute the “cat” command on the “/etc/passwd” file. When executing this command, you will be presented with the list of users currently available on your system. Alternatively, you can use the “less” or the “more” command in order to navigate within the username list.
How do I login as sudo?
When sudo asks for a password, it needs your password, this means that a root password is not needed. To run a command which requires root privileges in a terminal, simply prepend sudo in front of it. To get an interactive root shell, use sudo -i.
How do I run a program without sudo?
3 Answers. Then create a desktop shortcut to sudo /path/to/virtualbox and it should run as root without a password. when you do that, the file will run with set-uid bit, ie its owners permissions, instead of the user who runs it. You could use chmod g+s myexecfile to same end, only set group but instead of user bit.
How do I check user permissions in Linux?
How to View Check Permissions in Linux
- Locate the file you want to examine, right-click on the icon, and select Properties.
- This opens a new window initially showing Basic information about the file. …
- There, you’ll see that the permission for each file differs according to three categories: