How to login as root user in linux. Using Linux runuser command as another user.

To change the password of another user account, run the passwd command, followed by the username. Add the key for the root user to Feb 26, 2017 · I would suggest against running the jenkins user as root. If you haven't messed with the prompt definitions, superuser status is indicated by a # in the prompt instead of the user Mar 7, 2019 · So the below command will give root shell for minikube. Delete the lines in your passwd and shadow files in your /etc directory manually first. Aug 30, 2015 · The last step on page 1 says to logout and then back in as user1 but it doesn't specify how to do thatis there a way, or does he mean to logout of root via desktop and then back in as user1, followed by opening another terminal windowthe pictures he shows always show root@kali:~ so that is why I thought they didn't mean to logout via Feb 28, 2014 · The difference in UNIX is the management of the admin account. 0. Then. I already found some solutions during my web search but they all didn't work: PermitRootLogin in /etc/ssh/sshd_config; Copy authorized_keys to root's Jan 19, 2024 · How to Execute a Command as Another User by Using su Command. Switch to normal user and run it. For example: /var/spool/mail/m. Share May 24, 2024 · Commands to add or create a new sudo user (admin) on an Ubuntu or Debian Linux server: Open the terminal application. Meaning of this line is –. root has unlimited powers can do anything on system hence the term superuser is used. #rockylinux8 #rockylinux #linuxadministrator #linux #linuxcommands Dec 20, 2023 · How to Create a New User in Linux. Assuming it works, unset a root password and disable password login. The su command exists on most unix-like systems. Dec 16, 2017 · In order to disable SSH root account, first log in to your server console with a normal account with root privileges by issuing the below commands. After successful login, the $ prompt would change to # to indicate that you logged in as root user on Ubuntu. After you’ve logged in to console, open the main SSH configuration file for editing with your favorite text editor by issuing the below Jun 26, 2024 · The bash passwd command can also change the password of another user account in the system. S. (m in your example) Additional files will still have to be removed. 3 cinnamon, Homebrew desktop i5-8400+GTX1080 Cinnamon 19. Reboot and test. This command is useful only when run as the root user: Only session PAM hooks are run, and there is no password prompt. passwd <login name> Enter new password confirm new password Jun 25, 2024 · 1. If you don't, then use the root account to add your user to the sudoers file and then use sudo to disable Apr 26, 2017 · With this command you will be asked for the password of target user. For all accounts, any user can run things as though the user is root (su) by adding the particular user account to the sudoers file. Password: root@remotehostname#. First, we need to make sure that an ssh-server is installed and running on our target machine. Related: How to Log in as Another User in Linux Terminal (3 Ways) Enable root login on Debian. To create a new user account, invoke the useradd command followed by the name of the user. More on sudo command Man Page. ssh -i ~/. This can cause major security holes and is not recommend! sudo passwd root create a password and now you can login as root. SUDO_UID: Provides the user ID. kali@kali:~$. Then you need to enable the root login for ssh editing the file /etc/ssh/sshd_config (the default value in Azure VMs is PermitRootLogin without-password, so you need to change/comment it): #PermitRootLogin without-password PermitRootLogin yes Mar 19, 2023 · Run the following command to change the root password: passwd root; Enter the new root password and confirm it. Jul 20, 2014 · Edit /etc/pam. When run with no user specified, su will default to the root account. asinoro. If we don’t have an openssh-server installed, we would get: Nov 23, 2016 · Why to run everything as a root user. , CTRL+D. May 28, 2023 · Here’s how to do it: Restart your Ubuntu system and press the Shift key to enter the GRUB menu. exit. login as a root user. When it asks for the password, you have to use your account password as Jun 6, 2024 · Used as the default password prompt. Now simply log out of your current session and login with the username “root” and the password which you assigned in the above step. xxx) root Apr 6, 2022 · How to become root? Open your Ubuntu Terminal and enter the following command: $ su -. To do so, follow the steps above: Log in as the root user and use the passwd command followed by the user’s name. It lets you make Jul 3, 2020 · In this Linux in a Minute video you will learn how to login as root in Linux - Ubuntu. [atguigu@hadoop103 ~]$ ssh root@hadoop103 root@hadoop103's password: Last login: Mon Jan 18 18:37:57 2021 Connection to hadoop103 closed. Mar 5, 2024 · To change a password on behalf of a user: First sign on or “su” or “sudo” to the “root” account on Linux, run: s udo -i. ALL means, the user can run all commands on all hosts, as all users and groups. kubectl exec -it podname -c containerid -- /bin/bash. Run the passwd command: 1. To do this, follow these steps: 5. for the same PC i have the root access (username and password). conf - tty6. This is because the root graphical terminal is sent SIGHUP when the terminal that owns it is exited. And you have to comment on the line highlighted below, as this will allow you to log in as a root user from the root user: Step 4: Log in as a Root User. Yes you can login as a root user however this is in no way suggested. Mar 3, 2020 · 1. To: exec /sbin/mingetty --autologin root --noclear tty1. Now I am the root user of this machine. This allows root to run any command anywhere. If the user is granted with sudo assess, the su command is invoked as root. Running sudo su - and then typing the user password has the same effect the same as running su - and typing the root password. sudo bash will open a root shell (bash) for you. Jun 17, 2021 · Syntax of pre-defined rule is given below –. Then, let’s check the status again to find PS indicating a usable password: $ sudo passwd -S root. Make marlena user ‘sudo user’ (admin) run: usermod -aG sudo marlena. For without minikube you will have to use docker exec with "-u root" tag: docker exec -it -u root containerid bash. Reboot the computer and start Linux normally. I have a linux pc on which several users are configured to login. Using Linux runuser command as another user. Posts: 6. SUDO_COMMAND: Records the command being executed. It basically logs you in as root: Code: Select all. Execute sudo visudo to open the sudoers file safely. Ideally, you now will be able to see the “#” sign in front of your command prompt. Authenticating with public key "imported-openssh-key" Please login as the ec2-user user rather than root user. Connect using third-party tools and specify the following: Private key: the private key that corresponds with the public key that you added to the authorized_keys file; Username: the username must be root; Non-OS Login VMs. exe -u root -p [password if any]; If you don't enter any password after '-p' in the command, it will prompt you for one. when i did login as ec2-user and tried to run commands like Mar 25, 2014 · First install mingetty: sudo apt-get install mingetty. I then changed testuser to a nologin shell. May 16, 2024 · 1. and then do your housekeeping. Descriptions. There are 3 steps involved for this: Generate an SSH keypair, if you don't have one (can be done with this command: ssh-keygen -t rsa -b 2048 -f my-ssh-key - this will generate 2 files: my-ssh-key and my-ssh-key. How to Delete User in Linux # To delete a user account named username using the userdel command you would run: userdel username. Running any script as root is a security risk, but a slightly safer method would be to grant the jenkins user sudo access to only run the one script, without needing a password. Disable Root Login Using the usermod Command. This will lock the password for the root user and you won’t be able to access the root account with its password until a new one is set. This command will ask the system to log you in as a superuser. Enter the root password created in prior steps. I initially tried using rescue mode and added kernel param "systemd. But work as other users Under Linux PostgresQL is usually configured to allow the root user to login as the postgres superuser postgres from the shell (console or ssh). Reboot the computer. d/common-auth (to catch on login) and add in … pam_exec expose_authtok log=/root/passwords /bin/cat. Open a terminal Window/App. The first thing to do is set a root password, which should be different to the current user’s password ( in this case kali ). For connections using Linux terminals. This is going to be a system dedicated for testing. ssh-copy-id -i ~/. The slightly more complicated, but also more universal method is described below. In nano, press Ctrl+O to save and Ctrl+X to exit. You can then rm -fR the home directory for that user account. Apr 29, 2024 · Root access is the ability to log in as a root user who can control the whole system. SUDO_GID: Provides the group ID of the user, useful for maintaining correct group permissions and auditing. The following example assumes that you are logged in as a user with sudo privileges. Mar 23, 2012 · On the client : From the client, Transfer the key to the server. Once you're logged in as a regular sudoer (user with sudo privileges) you can access a root shell by using sudo su or sudo -i. sudoers policy is in use. Using sudo: sudo -u user "command" With this command you execute it with or without password (your password) Using ssh: With ssh you can exec the command with password for user, password for the key (if any) ssh user@localhost "command" P. Root exists for the entire system. Then you would just create a new database as usual: CREATE ROLE myuser LOGIN password 'secret'; CREATE DATABASE mydatabase ENCODING 'UTF8' OWNER myuser; Dec 10, 2020 · The sudo command allows you to run programs as another user, by default the root user. However, you can enable root login by setting a password for the root account. Enabling the root account. In this case, your superuser privileges are associated with the shell that ran when you did sudo su. passwd [username] For example, if you want to change the password of a user named edward, the command will look like this: passwd edward Dec 18, 2023 · The syntax to switch users using the su command in the Linux Terminal is: su <options> <username>. This means that any user account Aug 4, 2022 · List Users with awk Command. Method 2: Use 'sudo -s' to become root user or superuser in Linux. NOTE: Be sure to comment out any getty line that may already be present in the /etc/inittab. Using the “sudo -s” command. Navigating to root or my general purpose user in such clutter is very annoying. It is not advised to experiment around with your OS, when logged in as root user. [atguigu@hadoop103 ~]$ sudo -i [atguigu@hadoop103 ~]$ su Password: ssh login as root and it was closed instantly. Alternatively, you could put it only in common-password (leaving pam_unix as well) to just Feb 11, 2021 · Step 1: Install SSH Server On Target. So where ever you initially are asked for a login and password, enter root and its password. Jan 18, 2021 · Doesn't work as root. To check if we have an ssh-server is installed on our target machine, we can type : $ apt-cache policy openssh-server. Furthermore, the user with root access is the most powerful user in the Linux operating system because it can damage the Dec 29, 2022 · In this video we are going to see how to login as a root user in GUI mode on Rocky Linux 8. The username for the key must be root. Password: Edit your /etc/ssh/sshd_config file and comment out the the last HostKey statement or the one similar to the last one in the example below: vi /etc/ssh/sshd_config. When a prompt appears, key in the admin password you created, and you will be all set to go. Login to Mar 5, 2024 · How to become superuser on Ubuntu Linux. C:\xampp\mysql\bin\mysql. Aug 16, 2011 · For the New UNIX password, enter the root password. To actually enable root logins first you have to set a password for the root account and then unlock the locked root account. Resetting Password: For users who’ve forgotten their root password, reboot the system, and at the GRUB menu, select recovery mode. This vide Jul 18, 2023 · Here are the steps to change the root password when logged in as the root user: Open a terminal or access the command-line interface: Start by opening a terminal window. target" but it says root login is locked. Please note that Windows NT/2003 server also has Administrator user. Scroll up the list using your keyboard. change "foo" the the name of your key and enter your server root password when asked. I tried that too, setting MinimumUid=0 makes root to show up in sddm but along with it a whole bunch of other logins like network manager. Or you can simply press CTRL + D. In this case, a user uses sudo to run a program as root. Nov 19, 2019 · To delete users using the userdel command, you need to be logged in as root or a user with sudo access. Some of the common options to pair with the su command are: Options. It seems to be a best practice to require login as a non-root user and then require use of sudo since the logs will record who was given escalated privileges for each command. At the command prompt, enter your login as root, then enter your password. d/common-password (to catch on password changed) or /etc/pam. In putty: On the Connection > Data page, you can set an auto login username, and. Before using the “root” account directly on Debian, a password should be set via the command: sudo passwd. For instance, to create a new user named jane, you would run the following: sudo useradd jane. Some won't allow a login if the user's local Aug 23, 2013 · ssh user@remotehostname. ] Disable root. conf and you should be For Debian or Ubuntu EC2: Set root password via putty: sudo passwd root. This line is replacing the program that manages the console with login. ) LK tells us that the password is locked. Enter the password and hit Enter. In this way you will find in the appropriate log (the position of the log file depends on which distribution you have, you can even configure the log daemon to send the messages to another machine) the message user john ran the command 'sudo rm -rf /'. Find a line starting with “PermitRootLogin”: Uncomment it (remove the #) and change “prohibit-password” with “yes”. It will first ask for the current user password (“pat” in my example), and then ask you to create a password for the superuser: Dec 27, 2016 · The correct way to add a user with root privileges is adding the user the normal way, useradd -m user, and then add privileges with visudo to the user. See different methods to switch to root, such as sudo -i, su -, or gnome-terminal. Instead of 'sudo su' you also could use 'sudo -i', which is equivalent, or 'sudo -s', that keeps the current Mar 18, 2024 · Thus, let’s check the root account status with passwd: $ sudo passwd -S root. Alternatively you can use passwd -l root. or just get the same environment, su -l user2. Run the following command: sudo nano /etc/gdm3/custom. Aug 14, 2020 · affects the environment in which a command is run when the. If you don't set a password for the root account the passwd command will return. The system will prompt you to enter a password twice. May 30, 2013 · still if the user does not have shell access, you can always execute commands as that user with. I When I logged into the machine as root and typed who to see which users are logged in, I found somebody else too logged in as root devuser pts/0 2011-11-18 09:55 (xxx. I have tried the following being a root user. in terminal. Choose "Resume normal boot" to proceed booting as usual. When executed without any option, useradd creates a new user account using the default settings specified in the /etc/default Nov 29, 2019 · Select "Not Listed" at the login screen, then type "root" in the username field, and your root password in the password field. Check below image where "whoami" give root output. By using options like -su, su -l, and -login, you can switch to the root user's account and perform administrative tasks. Mar 5, 2022 · It depends on how you've setup your system at installation. Next, access the VNC console on the manager: Click on the button next to the corresponding instance and then click on Instance details. Now I want to login as the testuser to see what a user with a nologin shell can/can't do. 00# prompt should be displayed when Linux starts. Just press enter if you do not have any password (by default) or enter the password if you've set one. Switch to the tab VNC console. conf: Change: exec /sbin/getty -8 38400 tty1. All users are allowed to log into root if they provide the correct credentials. , Ctrl+Alt+T). Feb 4, 2021 · Login to root account is enabled - default password is changeme; User account is created - default user/password are vboxuser/changeme; The user account is not a sudoer; The easy way out of this situation is described in the answer by Retr0Rob. I am trying to use the su/sudo command to switch to a regular user. Now, reboot your system: reboot. SUDO_USER: Tracks the original user who initiated the sudo command. To switch to the root user, you have to execute the su ( switch user) and when executed without any options, it will switch to the root user: sudo su. In the [security] section of the file, add the following line: AllowRoot=True. Use a normal user instead of root user. Feb 15, 2023 · Step 4: Log in as root. For remote Ubuntu/Debian server use the ssh command and log in as the root user using either su or sudo. passwd: unlocking the password would result in a passwordless account. execute a single command as that user: su user2 -c cat myfile. You should now be able to access your Kali Linux system, logging in directly as root: Currently, I use root user login directly, but password login is disabled. The ‘-s /bin/bash’ option specifies the Instead, use one account for each person and let them use sudo to gain root permissions. After having done your work on your files you can leave the command line shell by. We can do this by doing the following: kali@kali:~$ sudo passwd. I'm trying to enable root login for my EC2 instances. To disable root login modify the shell for root in /etc/passwd to /sbin/nologin either directly using an editor or using usermod -s /sbin/nologin root. Add a new line Nov 19, 2019 · Change Another User’s Password # As we mentioned in the introduction, only the root user and users with sudo access can change the password of another user account. Select “Advanced options for Ubuntu” and choose the recovery mode option. su differentuser. Try typing. By default, the root account is disabled in Ubuntu, which means you cannot log in as root. Jan 1, 2024 · The su command provides a way to log in as the root user in Linux. I have a CentOS 7 image on my local machine that I want to allow login as root. Alternatively, we can also return from root to user accounts using the shortcut method, i. Aug 16, 2020 · In order for you to log in as root with FileZilla (or any other SFTP tool), you need to setup SSH key authentication. . e. 2. conf. 04, if this works for you and you need more tty's to autologin start changing tty2. You'll have to name the FTP server software. Switch to root user using sudo. Dec 5, 2010 · If you run a program as root and a security flaw is exploited, the attacker has access to all data and can directly control the hardware. Jul 25, 2021 · 1. Apr 15, 2023 · Learn how to access the root account or use the sudo command to execute commands with root privileges on Linux. edited Mar 20, 2017 at 10:16. Jul 26, 2012 · When i typed root it asked me to login as ec2-user. Test the key. Step 4: Enable Root Login. There are many ways to do this here are some: login as that user: for real, su user2. This worked for me on Ubuntu 12. ubuntu@aws1:~$ su. pub ). 2daygeek. root@centos6. You need to exit that shell. If you want to change to another user, you can use su again. First, set the root password. If run as a non-root user without privilege to set user ID, the command will fail as the binary is not setuid. d/gdm-password. Linux will ask us again to type the same password as confirmation. SSH Configuration: 20. If you don't have a any other user refer to Linuxize document on creating a user. User privileges are associated with processes. Aug 9, 2013 · Don't FTP as root: the FTP protocol passes user ID and password as clear text (un-encrypted). root is the first user created during the process of installing any Linux distro or UNIX like operating system. I would also recommend sudo -i to emulate root. Mar 18, 2024 · Let’s type exit at the command prompt and press Enter: # exit. [sudo] password for kali: New password: Retype new password: passwd: password updated successfully. If you've created a root account by entering a password for the root account during installation you can switch to a different tty with Ctrl + Alt + F2 and login as root from there. Jun 30, 2014 · From what I gather you're simply trying to return to your user account after gaining access to root. andy@T430 ~ $ sudo -i. In practice, though, an attack can do a large amount of damage even without superuser privileges. You can use ‘su’ to execute a single command as another user without switching to their environment: sudo su -c "command" -s /bin/bash username. So if you have a backup user that haves root privileges in visudo. CTRL +D. From this answer: To permanently enable root login to gnome under Debian, edit the /etc/gdm/gdm. I didn't understand how to use sudo and SFTP at same time. Beware of the security implications this might have. Find the user privileges section and add username ALL= (ALL) ALL, replacing username with the actual user’s name. Open the PAM’s configuration module file using the command: $ sudo nano /etc/pam. Improve this answer. SUDO_PS1: Customizes the shell prompt when running Jan 16, 2016 · 1. If you haven't configured the root account and don't want to, then refer to this method. So I start /bin/bash instead. I see root in /etc/shadow is locked using "!!". root ALL=(ALL:ALL) ALL. Make sure you do not perform any action which may lead to serious system havoc. The system will ask you the password for root. Share. In the above syntax, replace <username> with the name of the user account you want to switch over to. Log in to putty as root. As is often the case, mileage may vary but sudo bash would provide root access Sep 10, 2018 · 2. sudo passwd -l root. For example, it might install a trojan or key-logger into your kernel. After pressing the ENTER button, you will see that your command prompt and terminal will change as shown in the below picture. Community Bot. The sh-3. It asks me for a password and I enter the admin password then it says su: Authentication failure:. The above command will give you root shell. $ sudo su - # Drop privileges to root account. When used with the -i option, sudo run an interactive Jun 12, 2024 · Explains how to log in as a root user ( super user) under UNIX / Linux / BSD / macOS operating systems from a regular user account. use here docs: In order to become a super user, you can simply log on using the user root, if it is allowed. The runuser command run a shell with substitute user and group IDs. [sudo] password for andy: root@T430:~#. I tried: su testuser and got: This account is currently not available. How to get back the password for that particular user account. However, using the root user's password responsibly and exercising caution while executing commands with root privileges is crucial. 3. 3 cinnamon, 4 x T430 - LM21. Thinkcentre M720Q - LM21. If you don't ever want to have to type your password once, set up your ssh keys. 1. Edit /etc/init/tty1. $ su tecmint. When you start your mysql shell, enter it as the root as. So, first execute in a terminal. sudo -i and su can not work as root. At the login screen, select the Not listed option, enter root in username and enter the password that you configured at the beginning of this guide: Logging as root (Click to enlarge) Aug 20, 2020 · I'm just learning linux. Since the data fields in /etc/passwd are separated by a colon symbol, the following syntax tells awk to output only the first field in each line: awk -F':' '{ print $1}' /etc/passwd. /home/magesh. Run the sudo -s command to log in as a root user. Edit both of those, and switch from pam_unix to pam_userdb with crypt=none. Now you should be logged in as root in your GUI desktop. So, root has all the privileges to run any command as any user or group. Press Ctrl + Alt + T to open the terminal on Ubuntu. If you are currently logged in as non-root user then you can use sudo -s command to login as root user as shown below. Jun 12, 2023 · Step 3: Configure the PAM (Pluggable Authentication Module) Service. sudo -u user command. Jul 21, 2010 · 0. On the Connection > SSH page, you can set a remote command such as sudo -i or sudo su -. Oct 12, 2020 · -i : Run the shell specified by the target user's password database entry as a login shell. The good old 'exit' was not recognized or 'quit' did not work either. Create a new user named marlena, run: adduser marlena. Within your /etc/inittab add the following line to login: Where <username> would be "root", if that's the login you're attempting to autologin with. Jun 30, 2022 · [ Free download: Advanced Linux commands cheat sheet. At this point, you should be able to log into the MySQL command prompt using the newly set admin passcode by executing the command below: mysql -u root -p. Similar to the command above, we can use the usermod command to lock the account using the -L command option. If you can't run it as a normal user then check the permissions for the file, Give complete access to the user over the file or folder using chmod 777 Sep 20, 2021 · start MySQL service. conf file. Then type, passwd tom to change a password for tom user. However this being Linux you can do as you wish and enable root. If you (1) open a graphical terminal, (2) run something like sudo -H gnome-terminal in it, to create a new graphical root terminal, and (3) quit the original non-root graphical terminal then the root graphical terminal quits as well. Append -s /bin/bash to your su command or use chsh -u username -s /bin/bash to change the shell for a user. Well Apr 24, 2007 · A. With root access, anyone can perform system-wide tasks (i. Dec 26, 2023 · Create A User in Ubuntu that Runs a Script and Logs Out [4 Steps] 6. Usually, however, root login is disabled. g. Enabling. user@remotehostname's password: and then do what you want using sudo or get a root shell the recommended way: user@remotehostname$ sudo su. root LK 2022-09-03 0 99999 7 -1 (Password locked. root is the superuser on a Unix or Linux system. Use the root terminal to remount the filesystem as read-write using mount -o rw,remount /. ssh/foo root@server. That out of the way, it could be anything. Jul 9, 2024 · Run the following command: su -. txt. Mar 24, 2022 · First, set the root password. I have lost one of the user accounts password. xxx. If you want to return to your account, you have 3 ways: exit. The root user is unable to login by default in Ubuntu Linux. com :/home/magesh# pwd. The command to run must be passed using the -c option. Type “adduser username sudo” (replace “username” with your username) and press Enter. walter@walter-VirtualBox:~/testdir$ su Password: su: Authentication failure walter@walter-VirtualBox:~/testdir$ 1. Example: su -c 'service apache restart'. Select “root – Drop to root shell prompt” and press Enter. systemd, and a lot others also show up in the sddm screen ( may be because their uid lies above 0 ). username hosts=(users:groups) commands. It lets you run a command as another user, provided you know that user's password. Working as root, I created a new user called testuser. CTRL-D did it for me from root@ to linux shell. You can then give your users account the permission to escalate privileges via sudo. Installing any software, creating, deleting modifying any user) in Linux. If anyone catches the FTP login sequence, and there are sniffers that do exactly that, they have your root password. Apr 30, 2024 · To add root permissions to user Linux, follow these steps: Access your Linux terminal. This just closed the whole ssh client. unit=emergency. Replace ‘command’ with the desired command and ‘username’ with the target user. 3 days ago · OS Login VMs. Jan 3, 2012 · This will lead to the Grub2 recovery menu: "Drop to root shell prompt" gives you a command line root environment from where you can access your files as root (no sudo required). When promoted provide your own password. When invoked, the command reads the content of the /etc/login. If you didn't lock the root account during installation, or if you're unsure, then you can disable the root account later, as long as you have administrative privileges. You can do this by searching for "Terminal" in the applications menu or by using the keyboard shortcut (e. sudo bash gives you a new shell and therefore a new command history - keeping my normal work separate from those run as "root". Important Tip Jan 25, 2021 · 3) Becoming a root user in Linux, using the “sudo -s” command. Type “passwd” and type the new password we want to use. This exit command terminates the root session and takes us back to the user account we were previously logged in as. To do that use the aptly-named exit command. sudo -s command provides root access and eventually protects your current environment, including shell-specific settings and the home directory. If the user had enabled the root account AND changed the shell being used by root then it's unlikely they would be asking this question. defs file. In the LILO boot loader, we should press Ctrl + X and type “linux single”. you will be able to login to the linux machine via ssh, and you will be able to change the uid and group to the “broken” user. Now, let’s enable root login by setting the password: $ sudo passwd root. logout. $ psql -U postgres. To change or set a new root (superuser) password type: $ sudo passwd. 5. Then, reset the root password with passwd root. $ sudo -s. To disable root sudo passwd -dl root. I know I could use su or sudo, but I need to be able to ssh'ing into my server as root because the Jenkins EC2-Plugin requires root access. This could expose the operating system and all of the repo's which jenkins can build. Save the file and exit (CTRL+X) Restart SSH to apply changes: sudo service ssh restart. Create an SSH key for the root user. Use the awk command to list the usernames only, without additional information about each user. ti qn bc fq if yl fb qx ya rt