> For the complete documentation index, see [llms.txt](https://wiki.zacheller.dev/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://wiki.zacheller.dev/network-security/courses/isci-cnss-course/introduction.md).

# Introduction to Network Security

- [Network Basics](https://wiki.zacheller.dev/network-security/courses/isci-cnss-course/introduction/network-basics.md): A network is simply a way for machines / computers to communicate.
- [Basic Network Utilities](https://wiki.zacheller.dev/network-security/courses/isci-cnss-course/introduction/untitled-1.md)
- [The OSI Model](https://wiki.zacheller.dev/network-security/courses/isci-cnss-course/introduction/untitled-2.md): The Open Systems Interconnect (OSI) model describes how networks communicate.
- [Threat Classification](https://wiki.zacheller.dev/network-security/courses/isci-cnss-course/introduction/threat-classification.md)
- [Security Terminology](https://wiki.zacheller.dev/network-security/courses/isci-cnss-course/introduction/security-terminology.md)
- [Approaches of Network Security](https://wiki.zacheller.dev/network-security/courses/isci-cnss-course/introduction/approaches-of-network-security.md)
- [Law and Network Security](https://wiki.zacheller.dev/network-security/courses/isci-cnss-course/introduction/law-and-network-security.md)