Become a Linux Network Engineer

Linux Hardening and Security

Linux has a massive share and influence on the internet, with the digital space still using the operating system three decades after it was established. Since its inception, it underwent multiple upgrades that then allowed people to enjoy smartphones, smart-powered automobiles, and social media that we have today. With its tight market visibility and lasting relevance to the web, Linux has secured its name as one of the reputable systems next to Windows and macOS. 

About the Course 

Apart from the advantages that Linux generously provides for a person, it also holds a higher degree of importance to the corporate field. The operating system's role in elevating the web presence of companies cannot be denied, and this claim was made more solid as it now powers nine of the top 10 most reliable companies across the world. 

If we are to contextualize this in data security, vulnerability concerns will top as the primary issue. The corporate threats that this introduced call for a dire need to implement necessary security measures. And with that, the nature of these threats and the proper intervention that may be implemented must be put under study. 

This course was largely developed to discuss Linux, focusing on hardening and security. While doing so, course takers will be brought into understanding how persisting vulnerabilities must be resolved with the help of substantial toolkits and time-tested best practices. 

Who is this Course for?

This three-part tutorial may be taken by anyone who wants to learn about Linux hardening and security. System administrators in search of tighter system encryption and/or Linux system engineers and administrators in need of additional security knowledge may also sign up for this course. 

Course Prerequisites and Skills to be developed 

While this course is open to anyone who wants to learn about Linux, those who do not have prior knowledge about the system are not encouraged to enroll. With its intermediate to advanced technicalities, this course may only be taken by those that have sufficient experience in the operating system. 

Course takers are expected to demonstrate:

• Hack-resistant security measures 
• Powerful password formulation
• SSH Hardening practices 
• Network security tactics 
• Port scanning and network service detection
• Proper understanding of firewalls and configuration
• Account connection
• Other encryption and file-related security   

Linux Hardening and Security Overview

General and Physical 

The introductory part provides an expository discussion of Linux, highlighting the operating system's fundamentals. It presents an encompassing overview of security in physical and digital contexts. It will then take course takers to a more complex lesson about setups and password demonstrations, which stand as crucial factors for overall system security. 

Network, and Account 

The subsequent part analyzes Linux’s account types and other relevant concepts such as SSH, Firewalls, and TCP Wrappers.     The aforementioned topics were discussed thoroughly, rendering an authoritative lecture for end-users and system administrators. 

File System 

The last part covers File Systems, in which the focus would be about permissions, special modes, ACLs, and Rootkits. Other related concepts are presented, such as file directory, attributes, and additional resources, which are crucial to the overall security of Linux.