content_image/986716.jpg
<img src='content_image/986716.jpg'>

## Security - Overview 

## 3 

As mentioned in Chapter 1, zCX is a new capability that is shipped for the first time with z/OS 2.4. The zCX instance that runs on z/OS runs in a Linux operating system. Inside the zCX instance, Docker containers run. Those containers run products and applications. 

In turn, this new paradigm naturally raises the question, How do we manage security for zCX on z/OS? 

This chapter discusses the various aspects of security for zCX on z/OS, including these topics: 

GLYPH<SM590000> 3.1, “zCX instance security” on page 42 

GLYPH<SM590000> 3.2, “Security within the zCX instance” on page 45 

GLYPH<SM590000> 3.3, “Docker in zCX versus Docker on distributed” on page 47 

