This report details the design and implementation of a secure operating system and application environment for a complex corporate file storage and sharing solution. It begins with an executive summary highlighting the importance of robust security measures in modern operating systems. The report emphasizes the need for centralized and automated security management to mitigate risks. It then outlines the requirements for a secure file storage and sharing solution, including secure IT oversight, flexible storage options, integration with existing frameworks, a rich user experience, and support for next-generation workspaces. The report further describes the installation of an Ubuntu Server 18.04, detailing the steps involved in creating a virtual machine and configuring the server. Finally, it explores security hardening techniques for the Ubuntu server, such as securing shared memory, implementing SSH logins for specific users, adding a security login banner, hardening the network layer, preventing IP spoofing, and installing fail2ban. The report aims to provide a comprehensive understanding of the security considerations and practical implementations required for a secure corporate file storage environment.
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