1/28/19, 11(01 PMRubric Detail – 2019_SPR_IG_Telecommunications Network ... Page 1 of 2https://ucumberlands.blackboard.com/webapps/rubric/do/course/grade…wOnly=true&displayGrades=false&type=grading&rubricAssoId=_32893_1 Rubric DetailRubric Detail A rubric lists grading criteria that instructors use to evaluate student work. Your instructor linked a rubric to this item and made it available to you. Select Grid View or List View to change the rubric's layout. Novice Competent Proficient Writing Skills, Grammar, and APA Formatting 1 (2.00%) - 4 (8.00%) Assignment does not demonstrate graduate-level proficiency in organization, grammar, and style. Assignment is poorly written and confusing. Ideas are not communicated effectively. Student paid no attention to spelling and punctuation. Demonstrates poor writing skills. The assignment lacks the use of APA formatting and does not provide proper citations or includes no citations. 4 (8.00%) - 8 (16.00%) Assignment demonstrates graduate-level proficiency in organization, grammar, and style. Assignment is effectively communicated, but some sections lacking clarity. Student paid some attention to spelling and punctuation, but there are errors within the writing. Needs attention to proper writing skills. Use of APA formatting and citations of outside resources, but has a few instances in which proper citations are missing. 9 (18.00%) - 12.5 (25.00%) Assignment strongly demonstrates graduate-level proficiency in organization, grammar, and style. Assignment is well written, and ideas are well developed and explained. Demonstrates strong writing skills. Student paid close attention to spelling and punctuation. Sentences and paragraphs are grammatically correct. Proper use of APA formatting. Properly and explicitly cited outside resources. Reference list matches citations. Maintains purpose/focus 1 (2.00%) - 4 (8.00%) Submission lacks focus or contains 4 (8.00%) - 8 (16.00%) Submissions has an organizational 9 (18.00%) - 12.5 (25.00%) Submission is well organized and has Name: Practical Connection Assignment Rubric ExitExit Grid View List View https://ucumberlands.blackboard.com/webapps/rubric/do/course/gradeRubric?mode=grid&isPopup=true&rubricCount=1&prefix=_642421_1&course_id=_108133_1&maxValue=50.0&rubricId=_18735_1&viewOnly=true&displayGrades=false&type=grading&rubricAssoId=_32893_1# https://ucumberlands.blackboard.com/webapps/rubric/do/course/gradeRubric?mode=grid&isPopup=true&rubricCount=1&prefix=_642421_1&course_id=_108133_1&maxValue=50.0&rubricId=_18735_1&viewOnly=true&displayGrades=false&type=grading&rubricAssoId=_32893_1# 1/28/19, 11(01 PMRubric Detail – 2019_SPR_IG_Telecommunications Network ... Page 2 of 2https://ucumberlands.blackboard.com/webapps/rubric/do/course/grade…wOnly=true&displayGrades=false&type=grading&rubricAssoId=_32893_1 focus or contains major drifts in focus an organizational structure and the focus is clear throughout. organized and has a tight and coh.

1. 1/28/19, 11(01 PMRubric Detail –
2019_SPR_IG_Telecommunications Network ...
Page 1 of
2https://ucumberlands.blackboard.com/webapps/rubric/do/cours
e/grade…wOnly=true&displayGrades=false&type=grading&rubr
icAssoId=_32893_1
Rubric DetailRubric Detail
A rubric lists grading criteria that instructors use to evaluate
student work. Your instructor
linked a rubric to this item and made it available to you. Select
Grid View or List View to
change the rubric's layout.
Novice Competent Proficient
Writing Skills,
Grammar, and APA
Formatting
1 (2.00%) - 4
(8.00%)
Assignment does
not demonstrate
graduate-level
proficiency in
organization,
grammar, and style.
Assignment is
poorly written and

2. confusing. Ideas
are not
communicated
effectively. Student
paid no attention to
spelling and
punctuation.
Demonstrates poor
writing skills. The
assignment lacks
the use of APA
formatting and does
not provide proper
citations or includes
no citations.
4 (8.00%) - 8
(16.00%)
Assignment
demonstrates
graduate-level
proficiency in
organization,
grammar, and style.
Assignment is
effectively
communicated, but
some sections
lacking clarity.
Student paid some
attention to spelling
and punctuation,
but there are errors
within the writing.
Needs attention to

3. proper writing skills.
Use of APA
formatting and
citations of outside
resources, but has
a few instances in
which proper
citations are
missing.
9 (18.00%) - 12.5
(25.00%)
Assignment
strongly
demonstrates
graduate-level
proficiency in
organization,
grammar, and style.
Assignment is well
written, and ideas
are well developed
and explained.
Demonstrates
strong writing skills.
Student paid close
attention to spelling
and punctuation.
Sentences and
paragraphs are
grammatically
correct. Proper use
of APA formatting.
Properly and
explicitly cited

4. outside resources.
Reference list
matches citations.
Maintains
purpose/focus
1 (2.00%) - 4
(8.00%)
Submission lacks
focus or contains
4 (8.00%) - 8
(16.00%)
Submissions has
an organizational
9 (18.00%) - 12.5
(25.00%)
Submission is well
organized and has
Name: Practical Connection Assignment Rubric
ExitExit
Grid View List View
https://ucumberlands.blackboard.com/webapps/rubric/do/course/
gradeRubric?mode=grid&isPopup=true&rubricCount=1&prefix=
_642421_1&course_id=_108133_1&maxValue=50.0&rubricId=
_18735_1&viewOnly=true&displayGrades=false&type=grading
&rubricAssoId=_32893_1#
https://ucumberlands.blackboard.com/webapps/rubric/do/course/

5. gradeRubric?mode=grid&isPopup=true&rubricCount=1&prefix=
_642421_1&course_id=_108133_1&maxValue=50.0&rubricId=
_18735_1&viewOnly=true&displayGrades=false&type=grading
&rubricAssoId=_32893_1#
1/28/19, 11(01 PMRubric Detail –
2019_SPR_IG_Telecommunications Network ...
Page 2 of
2https://ucumberlands.blackboard.com/webapps/rubric/do/cours
e/grade…wOnly=true&displayGrades=false&type=grading&rubr
icAssoId=_32893_1
focus or contains
major drifts in focus
an organizational
structure and the
focus is clear
throughout.
organized and has
a tight and cohesive
focus that is
integrated
throughout the
document
Understanding of
Course Content
1 (2.00%) - 4
(8.00%)
Student does not

6. demonstrate
understanding of
course content and
knowledge
4 (8.00%) - 8
(16.00%)
Student
demonstrates some
understanding of
course content and
knowledge.
9 (18.00%) - 12.5
(25.00%)
Student
demonstrates
understand of
course content and
knowledge.
Work Environment
Application
0 (0.00%) - 4
(8.00%)
Student does not
demonstrate the
practical
application, or
ability to apply, of
course objectives
within a work

7. environment.
4 (8.00%) - 8
(16.00%)
Student
demonstrates some
practical
application, or
ability to apply, of
course objectives
within a work
environment.
9 (18.00%) - 12.5
(25.00%)
Student strongly
demonstrates the
practical
application, or
ability to apply, of
course objectives
within a work
environment.
Name:Practical Connection Assignment Rubric
ExitExit
Executive Program Practical Connection Assignment
At UC, it is a priority that students are provided with strong
educational programs and courses that
allow them to be servant-leaders in their disciplines and

8. communities, linking research with practice and
knowledge with ethical decision-making. This assignment is a
written assignment where students will
demonstrate how this course research has connected and put
into practice within their own career.
Assignment:
Provide a reflection of at least 500 words (or 2 pages double
spaced) of how the knowledge, skills, or
theories of this course have been applied, or could be applied,
in a practical manner to your current
work environment. If you are not currently working, share times
when you have or could observe these
theories and knowledge could be applied to an employment
opportunity in your field of study.
Requirements:
Provide a 500 word (or 2 pages double spaced) minimum
reflection.
Use of proper APA formatting and citations. If supporting
evidence from outside resources is used those
must be properly cited.
Share a personal connection that identifies specific knowledge
and theories from this course.
Demonstrate a connection to your current work environment. If
you are not employed, demonstrate a
connection to your desired work environment.
You should NOT, provide an overview of the assignments
assigned in the course. The assignment
asks that you reflect how the knowledge and skills obtained

9. through meeting course objectives
were applied or could be applied in the workplace.
Note: A grading rubric for this assignment is attached
Network Security, Firewalls,
and VPNs
Lesson 4
Network Security Implementation and Management
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Network Security, Firewalls, and VPNs
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1
Virtual Lab
Using Social Engineering Techniques to Plan an Attack
Chapters 3, 11, 12

10. Required Reading
From Last Week…
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Network Security, Firewalls, and VPNs
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2
Learning Objective
Describe network security implementation strategies and the
roles each can play within the security life cycle
Identify network security management best practices and
strategies for responding when security measures fail
Page ‹#›
Network Security, Firewalls, and VPNs
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Key Concepts
Why layered security strategies help mitigate risks, threats, and
vulnerabilities
Layering security to provide enhanced security for enterprise
network resources
Practices for hardening systems and networks against an attack

11. Security is a process or life cycle that requires constant
attention
Identifying security concerns of local, remote, and mobile
employees
Page ‹#›
Network Security, Firewalls, and VPNs
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Layered Security
Security Policy
Firewall
IDS/IPS
Vulnerability Assessments
Antivirus
Network
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Network Security, Firewalls, and VPNs
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12. 8/20/2017
5
Layered Security in Action
Known Exploit Targets Your Web Server
Firewall—configured to allow Web traffic
IDS—detects the exploit
Vulnerability assessment—informs no action is needed because
server is not vulnerable
A Zero-Day Virus E-mailed to a User
Firewall—configured to allow E-mail
IDS—does not have signature for new virus
Antivirus—Heuristic engine identifies possible virus-like
activity
Page ‹#›
Network Security, Firewalls, and VPNs
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Concentric Castles
Superior defense
Two or more perimeter walls
Outer wall
Inner wall
Collapsible defense
Secure the keep
Focus on perimeter security

13. Page ‹#›
Network Security, Firewalls, and VPNs
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7
Network Security Application
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Network Security, Firewalls, and VPNs
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8/20/2017
8
Network Security Application
Similar to a DMZ
Two or more firewalls
External firewall
Internal firewall
Secure the internal network

14. Layers of perimeter defense
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Network Security, Firewalls, and VPNs
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9
Improving Concentric Castles
Relied upon walls as barriers to entry
Add additional barriers
Moats
Add additional defenses
Ranged defense
Archers
Vats of hot oil
Melee defense
Knights
Swordsmen
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Network Security, Firewalls, and VPNs
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8/20/2017
10

15. Building Upon Layered Security
Layered only provides breadth
Depth=overlapping countermeasures at each layer
Can be from multiple vendors
If one is good two must be better
Different AV patterns=higher chance for detection
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Network Security, Firewalls, and VPNs
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8/20/2017
11
Desktop Antivirus from Vendor A
E-mail Antivirus
from Vendor B
Antivirus Defense in Depth

16. The Bigger Picture
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Network Security, Firewalls, and VPNs
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8/20/2017
12
Firewall
External Firewall from Vendor A
Internal Firewall from Vendor B
Antivirus
Server AV
Desktop AV
IDS/IPS

17. Network IDS
Host IPS
Public Addresses
Finite number of addresses available
Issued by Internet Assigned Numbers Authority (IANA)
Controlled at the regional level by Regional Registry Entry
Direct communication with the Internet
Required for Internet-facing applications
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Network Security, Firewalls, and VPNs
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8/20/2017
13
Private Addresses

18. Reserved IP space
Class A: 10.0.0.1-10.255.255.255
Class B: 172.16.0.0-172.31.255.255
Class C: 192.168.0.0-192.168.255.255
Can be reused on internal networks
Isolated from Internet
Need to use network address translation (NAT) to communicate
with Internet
Page ‹#›
Network Security, Firewalls, and VPNs
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8/20/2017
14
Static Addressing
Each system is configured with an address
IP addresses managed at the device level
Each system is guaranteed the same address
Making changes can be cumbersome
Page ‹#›
Network Security, Firewalls, and VPNs
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8/20/2017

19. 15
Dynamic Addressing
Dynamic Host Control Protocol (DHCP)
Requests IP address from centralized system
Addresses leased for a set period of time
Systems may acquire different address.
Reservations for the same address can be made
Addressing centrally controlled
An attacker may be able to “borrow” an address
Page ‹#›
Network Security, Firewalls, and VPNs
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8/20/2017
16
Best Practices: Strategy
Create written plans
Security policy
Incident response plan
Business continuity plan (BCP)
Disaster recovery plan (DRP)
Security checklists
Perform regular maintenance
Back up regularly and test restores frequently
Monitor and review collected log files frequently
Constantly identify the weakest architectural link
Page ‹#›
Network Security, Firewalls, and VPNs

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Best Practices: Strategy (cont.)
Perform diligent testing of new systems before deploying in
production
Implement the principle of least privilege
Deploy layered defenses
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Network Security, Firewalls, and VPNs
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Best Practices: Devices
Maintain physical security over users and equipment
Install and maintain virus and malware protection at all layers
in the environment
Harden both internal and perimeter devices
Develop and follow a patch management strategy
Enforce hard drive or file encryption
Page ‹#›
Network Security, Firewalls, and VPNs
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Company

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Best Practices: Connectivity
Restrict Internet connections to required activity
Limit remote access to required connectivity
Encrypt all internal network traffic
Require multi-factor authentication
Use default-deny over default-permit whenever possible
Page ‹#›
Network Security, Firewalls, and VPNs
© 2015 Jones and Bartlett Learning, LLC, an Ascend Learning
Company
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User Training
Q: What is user training?
A: Educational information presented through various
mechanisms that clearly defines security policies, their
boundaries and imposed limitations
Q: Why is user training important?
A: Training drives user accountability, understanding, and
acceptance of obligatory security policies
It is imperative that regular renewal of security awareness
training occurs
Page ‹#›
Network Security, Firewalls, and VPNs
© 2015 Jones and Bartlett Learning, LLC, an Ascend Learning
Company
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22. All rights reserved.
Security Awareness
Page ‹#›
Network Security, Firewalls, and VPNs
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8/20/2017
22
Security Awareness
Defines
Informs
Explains
Teaches

23. Network Security Assessments
Q: What is a network security assessment?
A: The process of judging, testing, and evaluating a deployed
security solution
Page ‹#›
Network Security, Firewalls, and VPNs
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Conducting Network Security Assessments
Perform a risk assessment
Execute the security assessment:
Perform configuration scanning
Perform vulnerability scanning
Execute penetration testing
Perform a post-mortem assessment review
Page ‹#›
Network Security, Firewalls, and VPNs
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Security Information and Event Monitoring (SIEM)
A SIEM is a tool that allows for automation of log and event
centralization and analysis
Functions of a SIEM

24. Log centralization
Log management
Log monitoring
Purposes of a SIEM
Incident detection
Incident response and alerting
Page ‹#›
Network Security, Firewalls, and VPNs
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Commonly Available SIEM Tools
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Network Security, Firewalls, and VPNs
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enVision
Qradar
Eventia
Security Manager

25. nDepth
Endpoint/Node Security
Node is any device on the network; Endpoint is a device with an
IP address
Different types of nodes require different types of security
Security of individual devices creates greater network security
Roles involved in node security
End-Users: acceptable use, security awareness
System Admin: responsible for implementation
Network Admin: responsible for networking devices
Physical Security Staff: responsible for physical controls
Page ‹#›
Network Security, Firewalls, and VPNs
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Endpoint/Node Security Concerns
Clients
Antivirus scanner

26. Firewall
Screen lockout
Physical lock
Server
Redundancy
Strong authentication
Physical isolation
Page ‹#›
Network Security, Firewalls, and VPNs
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Endpoint/Node Security Concerns (cont.)
Networking devices (routers and switches)
Strong authentication
Accounting
Physical isolation
Page ‹#›
Network Security, Firewalls, and VPNs
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Network Security
Addressing

27. Private/Public
Static/Dynamic
Topology
Ring, Bus, Star, Line, Tree, Full Mesh, Partial Mesh
Protocols
Communication
Outbound
Inbound
Redundancy
Page ‹#›
Network Security, Firewalls, and VPNs
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Physical Security
Physical access bypasses many other controls.
Critical devices should de stored is an isolated data center.
Multifactor physical authentication
Limit staff with access
Fire suppression
CCTV cameras where appropriate
Compensating controls for mobile devices
Encryption
Anti-theft tracking software
Page ‹#›

28. Network Security, Firewalls, and VPNs
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Administrative Controls
Corporate objectives
Policies
Procedures
Standards
Guidelines
Training
Awareness
Page ‹#›
Network Security, Firewalls, and VPNs
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Network Security: Key Components
Primary objectives: confidentiality, integrity, availability
Security policy
Layered security + defense-in-depth
Network design: protocols, topologies, addressing, and
communication
Equipment selection

29. Page ‹#›
Network Security, Firewalls, and VPNs
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Network Security: Key Components
System hardening
Authentication, authorization, and accounting
Encryption
Redundancy
Endpoint security
Page ‹#›
Network Security, Firewalls, and VPNs
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Incident Response Team (IRT)
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Network Security, Firewalls, and VPNs
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8/20/2017

30. 35
Team Leader
IS Members
Network Admins
Physical Sec Personnel
Legal
HR
PR

31. Incident Response
Page ‹#›
Network Security, Firewalls, and VPNs
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Preparation
Detection
Containment
Eradication
Recovery
Follow-up

32. Authentication
Verification of identity
Drivers license
User name/password
Most common
Weakness of passwords
Multifactor
Something you know (password/pin)
Something you have (security token/ATM card)
Something you are/do (biometrics/behavioral based)
Page ‹#›
Network Security, Firewalls, and VPNs
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8/20/2017
37
Authorization
Concerned with what one has access to do
Least privileges
Access to what one needs to complete job
Typically occurs after authentication
Example: purchasing beer
Clerk checks ID verifies picture match (authentication)
Checks DOB to see if > 21 (authorization)
Page ‹#›
Network Security, Firewalls, and VPNs

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Accounting
Logging
All attempts failed and successful
Who, what, when
Auditing
Checking for compliance to ensure appropriate access
Monitoring
Looking for violations
Checking for unauthorized access
Page ‹#›
Network Security, Firewalls, and VPNs
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Encryption
Data at rest
File encryption
Database encryption
Disk encryption
Data in transit
Ensures integrity, confidentiality, and privacy
Nonrepudiation
Encrypted tunnel: IPSec and SSL/TLS

34. Page ‹#›
Network Security, Firewalls, and VPNs
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Compartmentalization and Containment
Compartmentalization is an element of infrastructure design
Creates small collectives of systems that support work tasks
while minimizing risk
Containment should interrupt or interfere with the continued
spread or operation of the unwanted event
Page ‹#›
Network Security, Firewalls, and VPNs
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8/20/2017
41
Honeypots, Honeynets, and Padded Cells
Honeypot traps intruders, detects new attacks, serves as a decoy

35. Honeynet is a network of honeypots
Padded cell is a form of a honeypot, turned on when an intruder
is detected, acts as a lure
Page ‹#›
Network Security, Firewalls, and VPNs
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8/20/2017
42
Summary
Why layered security strategies help mitigate risks, threats, and
vulnerabilities
Layering security to provide enhanced security for enterprise
network resources
Practices for hardening systems and networks against an attack
Security as a process rather than as a goal
Security is a process or life cycle that requires constant
attention
Page ‹#›
Network Security, Firewalls, and VPNs
© 2015 Jones and Bartlett Learning, LLC, an Ascend Learning
Company
www.jblearning.com

36. All rights reserved.
Summary
Best practices for network security management
Strategies for integrating network security strategies with
firewall defenses and VPN remote access
Value of incident response planning, testing and practice
Page ‹#›
Network Security, Firewalls, and VPNs
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8/20/2017
44
Virtual Lab
No labs this week
Chapters 5 & 6
NIST SP 800-61: Computer Security Incident Handling Guide
MUST BE completed by Sunday, September, 24th by 11:59 PM!
Required Reading
Midterm Exam
Page ‹#›
Network Security, Firewalls, and VPNs

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