pace it - network devices (part 2)

Network devices II.

Instructor, PACE-IT Program – Edmonds Community College

Areas of Expertise Industry Certifications PC Hardware Network

Administration IT Project

Management

Network Design User Training IT Troubleshooting

Qualifications Summary

Education M.B.A., IT Management, Western Governor’s University B.S., IT Security, Western Governor’s University

Entrepreneur, executive leader, and proven manger with 10+ years of experience turning complex issues into efficient and effective solutions. Strengths include developing and mentoring diverse workforces, improving processes, analyzing business needs and creating the solutions required— with a focus on technology.

Brian K. Ferrill, M.B.A.

Network Devices II.

– Firewalls.

– Network attached storage (NAS).

– Other devices.

PACE-IT

Firewalls.Network devices II.

Firewalls.

– The firewall.» It can be built into routers or be its own device.» It functions at multiple layers of the OSI model.

• Specifically at layers 2, 3, 4, and 7.» It is used to prevent or mitigate security threats.» It blocks packets from entering or leaving the

network.• Via stateless inspection: the firewall will

examine every packet against a set of rules. Once the packet matches a rule, the rule is enforced, and the specified action is taken.

• Via stateful inspection: the firewall will only examine the state of the connection between networks. Specifically, when a connection is made from an internal network to an external network, the firewall will not examine any packets returning from the external connection. As a general rule, external connections are not allowed to be initiated with the internal network.

» It is the first line of defense in protecting the internal network from outside threats.

• Consider it the police force of the network.

Network devices II.

Network attached storage.Network devices II.

Network attached storage.

– The NAS.» One solution to the data storage needs of the modern

world.• It is a specifically designed pool of storage.

» NAS is usually deployed as a network appliance.• A network appliance is a device that is purchased and

deployed with a preconfigured operating system and software. It is designed to perform a specific function and to do that function very well.

• Network appliances limit the amount of configuration that the user is allowed to perform.

» NAS offers several storage solution benefits.• NAS is often designed and deployed with performance

in mind (with some form of RAID striping and multiple connections to the network, thus increasing the possible throughput).

• NAS is often designed with high availability in mind (with some form of RAID mirroring and redundant systems in case of equipment failure).

• NAS is always designed and deployed with high storage capacity in mind. The size of the NAS is usually only limited by the budget of the purchaser.

Network devices II.

Other devices.Network devices II.

Other devices.

– Voice over IP (VoIP) phones.» Use the network and Internet to provide telephone

service.» Offer more than just normal telephone functions.

• They can automatically log VoIP traffic, they are often programmed with time clock applications, and they are often programmed with simple browsers.

» VoIP can reduce the cost of operating telephones.• Reduced long distance costs.• Reduced cost of reconfiguration and ease of

management of the system.

– Internet appliances.» A category of purpose built devices that are designed

to connect to a network and offer simple communication.

• An example would be a device that measures the amount of material in a tank and, when it reaches a certain level, it will send a message to reorder the necessary supply.

» They are usually designed to simplify a process or procedure.

Network devices II.

What was covered.Network devices II.

They can be built into routers or purpose built. They function at multiple levels of the OSI model in an effort to mitigate and protect the network from security threats. They control the flow of traffic into and out of networks.

Topic

Firewalls.

Summary

A mass storage solution for the modern network. NAS is often deployed with high performance and/or high availability in mind. This is achieved through the use of RAID and other redundancy built into them. They tend to be a type of network appliance that is built to achieve a specific purpose. The size of the storage solution is only limited by the budget for it.

Network attached storage.

VoIP phones offer telephone service over the network and Internet. VoIP can offer more than just telephone service (logging, time card functions, and the inclusion of a simple browser are common). VoIP can be used to reduce the normal cost of telephony. Internet appliances are purpose built devices that are designed to connect to networks and offer simple communication.

Other devices.

THANK YOU!

This workforce solution was 100 percent funded by a $3 million grant awarded by the U.S. Department of Labor's Employment and Training Administration. The solution was created by the grantee and does not necessarily reflect the official position of the U.S. Department of Labor. The Department of Labor makes no guarantees, warranties, or assurances of any kind, express or implied, with respect to such information, including any information on linked sites and including, but not limited to, accuracy of the information or its completeness, timeliness, usefulness, adequacy, continued availability or ownership. Funded by the Department of Labor, Employment and Training Administration, Grant #TC-23745-12-60-A-53.PACE-IT is an equal opportunity employer/program and auxiliary aids and services are available upon request to individuals with disabilities. For those that are hearing impaired, a video phone is available at the Services for Students with Disabilities (SSD) office in Mountlake Terrace Hall 159. Check www.edcc.edu/ssd for office hours. Call 425.354.3113 on a video phone for more information about the PACE-IT program. For any additional special accommodations needed, call the SSD office at 425.640.1814. Edmonds Community College does not discriminate on the basis of race; color; religion; national origin; sex; disability; sexual orientation; age; citizenship, marital, or veteran status; or genetic information in its programs and activities.