In this tutorial, t2.micro instance is selected as it is free-tier eligible. In the next screen choose the instance type. Select Ubuntu Server 18.04 LTS (HVM), SSD Volume Type. Here you get to choose the OS for the virtual machine and also the other hardware. Log into the AWS EC2 Management Console, and click on the button Launch Instance Step 2 - Choosing the OS and HardwareĬlicking on the option from Step 1 takes to the below page. Step 1 - Launch an AWS EC2 Virtual Machine The steps will work for all flavours of Linux, and also for Mac.įor Windows, the steps are almost the same, the only difference being you need to use PuTTY for SHH connection (rather than command line on Linux systems). After an year, the instance is charged hourly depending upon the type of instance. Under the Amazon Free-Tier, you can use an EC2 instance for a year, free of cost.
Connection to the instance from your system. Great, that is all about how to allow/deny specific users to login via SSH on Ubuntu 18.04 system.In this article step-by-step process is discussed to setup LAMP stack in AWS EC2. Remember to reload SSH whenever you make any changes. To deny a group of users, say the administrator group whose members are admin and mibey, you would add the following line to SSHd configuration file. If you try to login as any of the above users, you will get permission denied. Similarly, to deny a specific user from logging in via SSH, you simply use the DenyUsers or DenyGroups option with a list of users or groups to deny access respectively. Deny Specific Users to Login via SSH on Ubuntu 18.04. If you try to login as a user who is not a member of the administrators group, you will get permission denied. This will allow only the members of the administrators group login getent group administrators To allow a specific group of users to login, you would add the following line to SSHd configuration file AllowGroups administrators If you check authentication logs, it states clearly Mar 27 19:46:07 u18svr sshd: User mibey from 192.168.0.101 not allowed because not listed in AllowUsers Now, if you try to login as any other user apart from the two allowed above, you should get permission denied.
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