Adrian Mikeliunas gave a presentation on secure network administration. He discussed network topologies and devices, the five-layer architecture, network encapsulation, server and network virtualization, and network function virtualization. Mikeliunas explained why secure network administration is important and covered types of attacks like SYN flooding and amplification attacks. He provided best practices for secure network administration including using a demilitarized zone and discussed career opportunities in cybersecurity such as security operations analyst, network administrator, and firewall administrator. The presentation concluded with a question and answer session.

1. Professional Certificate in
Cybersecurity
Office Hours - Week 14
with Adrian Mikeliunas
June 03, 2022

2. Agenda
01 Introduction
02 Secure Network
Administration
03 Career Section
04 Q&A

3. Introduction
Adrian Mikeliunas,
CISA, CISSP
BS Cybersecurity
Compliance Manager @ IMF
Slack: @Adrian Mikeliunas mit-
pccy.slack.com

4. Secure Network Administration
4

5. Network Topologies & Devices
5

6. Five-Layer
Architecture
6

7. Network
Encapsulation
7

8. Server & Network Virtualization
8

9. Network Function Virtualization
9

10. Why Is Secure Network Administration Important?
10

11. Types of Attacks
11
SYN Flooding
Amplification Attack
DNS & Network Time Protocol (NTP) Systems
Reflector Attack

12. Best Practices For Secure Network Administration
12

13. Demilitarized Zone (DMZ)
13
Intranet
Extranet

14. Careers In Cybersecurity

15. IMF Network Support Page

16. Security Administration Jobs
• SOC Analyst
• NOC Analyst
• Incident Response
• Network Administration
• Firewall Administration
• Network Engineer
• PenTester ***
• Auditor
• Compliance Analyst
https://www.indeed.com/jobs?q=
network+administrator

17. Assignment 14.1: How Does The Internet Work? (2 hours)
Crowdsource Activity 14.1: Secure Network Technologies And Concepts (90:00)
Quiz 14.1: Knowledge Check: Network Security Acumen (20:00)
Try-It Activity 14.1: Zenmap Network Discovery (90:00)
Assignment 14.2: Firewall Content Filtering (90:00)
Quiz 14.2: Knowledge Check: Network Security Governance (20:00)
Crowdsource Activity 14.2: Home Network Security (90:00)
Try-It Activity 14.2: Capture And Discover Interesting Activity (90:00)
Assignment 14.3: (Optional) Digital Journal Entry: The Future Of The Internet
(45:00)
Week Workload (Assignments)

18. Q&A
Questions?
Your Learning Facilitator:
Adrian Mikeliunas
Slack @Adrian Mikeliunas
mit-pccy.slack.com