Guide to Security for Linux Systems

Are you an IT professional in the corporate environment enthusiastic about becoming an expert at Linux Security? This free online cybersecurity certification will introduce you to the principles and steps you will need to ensure that your system is secure from any potential harm. Gain insight into the fact that although Linux is an open-source operating system whose code is easily read by users, it is regarded as more secure when compared to other operating systems. You will implement an internal security protocol and an external protocol if your machine is serving outside services such as HTTP and FTP. In a corporate environment, you will likely be working with different servers, databases, and applications, and as a result, you will find out how crucial it is to learn how to secure all the operating systems in this type of tiered environment. Discover that the key priority in Linux security is the protection of data, system resources, and application workflows.

At first, the course will introduce you to the different ways the security of your Linux machine can be breached, which will help you take the appropriate steps to protect your system. You will learn the command that is used to set the parameters around the password without making changes to the user account, along with the minimum number of days required between password changes and the maximum number of days the password is valid. These steps will go a long way in ensuring that you reduce the vulnerability of your system. What is the value of setting up a password policy in a corporate environment? This cybersecurity training will clarify this common question and show you how to use any of the three main files to set the password policy. You will be able to include essential best practices in your password policy, such as preventing users from reusing old passwords and setting the minimum password length. Next, you will learn how to disable Secure Shell (SSH) access for a specific user and disable root login on your machine, after which the process of monitoring the number of users who have not been logged into the system for a long time and how to manually lock or disable those accounts is discussed. Disabling inactive accounts ensures that accounts that may not have been responsibly removed are not available to attackers, and the section sets up learning about another layer of security, which involves setting the file ownership rights and permissions that users and groups in your Linux system can have. Finally, you will study the process of changing file ownership rights, the “message of the day,” “one service per server,” and user account creation. 

Cybersecurity is a booming market given our reliance on data in the modern world. Network security is of utmost importance because of the value that data and especially user- and BigData has, so this security certification is perfect for those professionals in system administration, Linux security or IT infrastructure.