![]() exec tells the shell that instead of spawning off a new process when it runs a command (hence leaving the shell process running as the login user) that the shell should overwrite itself with the new process - this means that when exec ed command ends the shell is gone - in the case of a login shell that equates to disconnecting from the login.sudo -s tells sudo that instead of just running on command as another user that it should run new shell as the given user.Usermod -l newname -d /home/newname -m oldname If your on console of the pi there is a way to get around this without having to make another user (or set a pw on root):Īssuming nothing else is running with your username other then the shell on the console - no X session, no ssh login, etc: exec sudo -s Usermod command won't run if there are any processes of the to-be-changed user running on the machine when the command is run. This shouldn't really be necessary if you have a strong root password and have root access through SSH disabled. This option disables a password by changing it to a value which matches no possible encrypted value. If you want to you can effectively disable the root account by running this command as root: # passwd -lock Syntax and rendering sudo unusable for you. NOTE You should never edit the sudoers file with Vim, Emacs, etc. ![]() Or add the user directly to the sudoers file: username ALL=(ALL) ALL This can be done in two ways.Īdd the user to the wheel group using usermod and uncomment this line in the sudoers file: %wheel ALL=(ALL) ALL To allow a user to use sudo they need to be added to the sudoers file. If you prefer, you can use sudo, in a similar way to Debian users. You will be prompted for a new password for the account when it is created. adduser is probably easiest, the only required field is the name (you can skip the others by pressing enter): # adduser # passwdĪ new user can be created with the adduser or useradd commands. The password can be changed when logged in as root by running the passwd command. In addition, you should also change the root password, as leaving as default is a major security risk. Thus you should definitely be creating a new user, as spending too much time as root is dangerous. Related questionsĪ fresh Arch install ships with only the root user available. So, are my files secure once I change the password?ĭon't be too relaxed with your RPi's security though, the filesystem is not encrypted, by default, and therefore, anyone with physical access can just remove the SD card and read it using another machine. You should not change this, as it is a security risk and sudo is more secure. Should I set a password for root?ĭebian's root does not have a password and is inactive - you cannot login to it or su to root. There are more options for usermod, which can be found by running man usermod. If, like me, you want to use your own name, you want to use usermod like this: usermod -l newname -d newname -m oldname ![]() To do this, run passwd from the command line and follow the prompts. How do I change pi's password?Īt the very least, you should change the password for the pi account, as anybody with a RPi will be able to log onto yours. You will only be able to login to the pi account. And can now log in to Ubuntu server with this user account and use sudo to run administrative commands.The official Debian image ships with at least 2 users, root and pi. Through this tutorial, we have learned how to create a user with sudo privileges. Is the user have sudo access then the output of the whoami command will be “root”: root Conclusion Use sudo to run the whoami command: sudo whoami Now, Use the following command to switch to the newly created user: su - username Use the following command to add the user you created to the sudo group use the usermod command: usermod -aG sudo username Step 4 – Test sudo user account Step 3 – Add the new user to the sudo group Once the user has been added the Prompt box will appear to set and confirm the new user password. Note that:- replace username with the user name that you want to create. Use the following ssh command to login into server: ssh _ip_address Step 2 – Create a new user account on UbuntuĮxecute the following command on command line to add or create new sudo user on ubuntu: adduser username ![]()
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