![]() ![]() ![]() Passwd: all authentication tokens updated successfully. If you simply set the password for the user, you should be allowed to login. You will not have to use sudo to login as the account.Īlthough this is possible and you can have an account without a password, it is not advised. Now any user should be able to use su and login as the user test in my example. So what you should be able to do is the following to have a user without a password, simply create an account then delete the password. Once you run passwd for this account, it will change the user's password and allow the user to be able to login. That's because in the /etc/shadow file, the password field is !!, as you can see in the example. Here is an example on CentOS 6.5, which should be the same as Scientific Linux. In this configuration file all commands can be run buy given users and groups.By default on enterprise GNU/Linux and its derivatives, the adduser command creates a user which is disabled until you explicitly specify a password for that user. Currently the server still asks for password when a command has uses sudo. Some of the commands are manually typed, others are shell scripts that I execute. Im currently using private/public key mechanism to remote execute commands on the server. and then we provide the commands the user can run. I have some services on which I need to run now and then, or even at system startup. We first specify the user name or group name we want to apply rules. # See sudoers(5) for more information on "#include" directives: # Allow members of group sudo to execute any command # Members of the admin group may gain root privileges And finally add the rule for the commands which are allowed without password: test ALL (ALL) NOPASSWD: PASSWORDLESS. All specified rules are applied during sudo usage. First create a command alias for the commands which can be used without password: CmndAlias PASSWORDLESS /bin/ls /root, /bin/whatever. 2 Answers Sorted by: 0 In your sudoers file: user ALL (root) NOPASSWD: /usr/bin/vim /opt/my-application/some-file This line only will be allow the specific command to run. Sudoers file is the database which is used by sudo command. In this example we will run ls / command with user account ismail. But we can also specify the username explicitly with -u option. If we run sudo command without specifying username explicitly the current user account will be used. Except for jupyter/docker-stacks-foundation, a container launched from any Jupyter Docker Stacks image runs a Jupyter Server with a JupyterLab frontend.The container does so by executing a start-notebook.sh script. ![]() $ sudo cat /etc/shadow Run Command With Sudo Specify User Normal user can not have right to print password hashes. ![]() Now we will run cat /etc/shadow command which will list users password hashes. If the passwordless sudo usage is allowed the command will run with root privileges. If the given user have right to run command with sudo the password will be asked. Question Initially, my only change to the sudoers file ( /etc/sudoers) was one line, a user specification that should have enabled nicholsonjf to run all commands with sudo without having to enter a password (see the line that starts with nicholsonjf): This file MUST be edited with the 'visudo' command as root. Sudo command will accept given command and look to the sudoers file. Replace rubaiat with your username to stop Linux from asking the sudo password ever again. Sudoers also used to limit the commands the user can run. Once you've opened the sudoers list, go to the bottom of the file and add the following line. where: is you username :D (saumun89, i.e.) is the user you want to change to. Sudoers file provides the users who can run sudo command. If you want to use sudo su - user without a password, you should (if you have the privileges) do the following on you sudoers file: ALL NOPASSWD: /bin/su - .etc/sudoers file is used for configuration of sudo . Linux sudo command is used to give root privileges to the normal users. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |