Security Tutorial: Disable Root SSH Access to a 1&1 Cloud Server Running Linux

Learn how to disable SSH access for the `root` account on a 1&1 Cloud Server running Linux. For security reasons, disabling root SSH access to a server is considered a "best practice" for Linux administration. Instead of connecting to a server as `root`, users will log in to a server with their own user accounts. They can then switch to `root` with the `su` command if necessary. [...]  

Add, Remove, and Manage Users on a Cloud Server Running Linux

Learn how to add and remove users on a 1&1 Cloud Server running Linux. This article also covers how to perform common user management tasks such as changing a user's password and granting a user sudo permissions. [...]  

Windows Server Security Rule 3: Patch Management is mandatory!

Now that we increased the authentication security and setup the encryption here are some important information about the patch management. Rule #3 continues our 10 rule series. [...]  

How to use Bash Tab Expansion and History Commands on Linux

Learn how to use the History and tab expansion commands which are built into the Bash shell on Linux. [...]  

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