To test this out, open a new terminal session and give the login a try: ssh you are logged into your system without a problem then you have completed this tutorial perfectly. Well done! You should now be able to log into your server using the new sudo user. sshįinally, make sure to restart the SSH service: sudo service ssh restart Paste your public key in the authorized_keys file.Ĭhange permissions on the authorized_keys file: chmod 600 authorized_keysĬhange into the home directory again with cd and change permissions on the. Update the line that begins with PermitRootLogin (if you want to disallow root login): - PermitRootLogin without-password + PermitRootLogin noĬreate an authorized_keys file: nano authorized_keys Whil still logged in as the sudo user, edit the SSH configuration file: sudo nano /etc/ssh/sshd_configĪdd sudo to the line that begins with AllowGroups: Remember, even if you disallow root login, you can always assume the root user using the su command above. Now that you have a sudo user, you can add your public key to new user account and actually disallow root login for added security. See "man sudo_root" for details." How to Log In With SSH KeyĪs you recall when first logging into your server as root, you had to provide a public key in the Account Management Panel, which will be used to authenticate your login, since password authentication is disabled by default. You will see a success message indicating that you have switched to your sudo user: To run a command as administrator (user "root"), use "sudo ". To test the account, you can switch to it: su You have now succeeded in creating a sudo user. you can put in actual values or press Enter to skip and answer “Yes”.įinally, add the new user to the “sudo” group by running this command: usermod -aG sudo For the rest of the rest of the prompts, like “Full Name,” “Room Number,” etc. Open a terminal window and add a new user with the command: adduser newuser The adduser command creates a new user, plus a group and home directory for that user. Log into the system with a root user or an account with sudo privileges. Run the adduser command followed by the name of your new user: adduser įill in a secure password. Steps to Add Sudo User on Ubuntu Step 1: Create New User 1. With your own “sudo” account, you can run commands as root by appending sudo to the command: sudo įirst, log into your server as root: ssh As an alternative, you can create a personal user account and add “super user” privilege. However, the cPanel user is not strictly a “sudo” user who can invoke root privileges as needed.įor this reason, it is often recommended that you avoid using the root user for everyday tasks. Those of you familiar with managed VPS hosting with cPanel will be familiar with how the cPanel account doubles as an SSH user with appropriate access. There are some similarities and distinctions between the sudo user and the cPanel user, for traditional VPS users. Likewise, using your root user account to make changes to your system can be inconvenient when creating files that must be shared with other users or the world - like the public files of your website. Your cloud server VPS gives you instant access to the “root” user account, which holds all the power over your system, even the power to delete critical system files. Only pay for what you need with our scalable Cloud VPS Hosting.ĬentOS, Debian, or Ubuntu No Bloatware SSH and Root Access Why Create a Sudo User? Hence for that you need sudo to gain root privileges temporarily.If you don’t need cPanel, don't pay for it. usr folder is owned by root user, so only root can write there, that means create files or folder. That means the owner of that folder testuser can read-write-execute stuff there (first rwx), and group testuser can only read and execute stuff there - that's the r-x part, and final r-x part means read execute for any other groups or users. If a folder has the following permissions, drwxr-xr-x 15 testuser testuser 4096 Nov 22 12:34 testuser/ When you install some package with apt-get or dpkg there should be preinstall and postinstall scripts that come along with the package, and run automatically to set up whatever program you're getting.įolder ( in linux terminology - directory ) creation, just like file creation, depends on the permissions. That's pretty much it - apt-get will take care of everything. Installation of that is somewhat simpler sudo apt-get install openjdk-7-jre openjdk-7-jdk icedtea-7-plugin There's also open-source version of Java, Open JDK. We already have a question about that: How can I install Sun/Oracle's proprietary Java JDK 6/7/8 or JRE?.All of the necessary commands are there, and I strongly suggest you read their manual pages with man COMMAND in terminal. I'm going to address two parts of your question: java installation and folder creation.
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