Join Mike Chapple for an in-depth discussion in this video Network ports, part of CompTIA Security+ (SY0-401) Cert Prep: Network Security.
- [Instructor] IP addresses may uniquely identify…each system on a network,…but those systems may be responsible…for running many different services.…That's where network ports come into play.…Network ports are particular locations on a system…associated with a specific application.…Imagine that each computer on the network…is an apartment building,…and each application is an individual apartment.…The IP address on the computer…is like the street address on the apartment building.…But once you arrive at the building,…you need specific instructions…to get to the right apartment.…
The network port is like the apartment number,…guiding traffic to the correct application.…Network ports are represented using a 16-bit binary number.…When we write that out in decimal form,…we have two to the 16th power,…or 65,536 possible values.…Just as with IP addresses, we start counting at zero,…so port numbers may range from zero to 65,535.…Different ranges of ports are used in different ways.…
Ports between zero and 1,023…are known as the well-known ports.…
Author
Mike Chapple
Released
1/26/2016We are now a CompTIA Content Publishing Partner. As such, we are able to offer CompTIA exam vouchers at a 10% discount. For more information on how to obtain this discount, please download these PDF instructions.
- Working with the TCP/IP suite
- Securing switches and routers
- Configuring firewalls
- Setting up virtual private networks (VPNs)
- Detecting and preventing network intrusions
- Implementing unified threat management
- Using public and private network addressing effectively
- Subnetting
- Segmenting networks
- Virtualization and cloud computing
- Managing secure networks
Skill Level Intermediate
Duration
Views
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Introduction
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Welcome54s
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1. TCP/IP Suite
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Introducing TCP/IP5m 20s
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IP addresses3m 26s
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Domain Name Service4m 6s
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Network ports3m 42s
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ICMP3m 29s
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2. Network Security Devices
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Switches and routers2m 31s
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Firewalls4m 17s
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VPNs and VPN concentrators2m 55s
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Protocol analyzers6m 39s
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Unified threat management1m 54s
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3. Designing Secure Networks
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Subnetting3m 46s
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Network access control4m 22s
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Remote network access5m 18s
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Telephony2m 24s
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Defense in depth3m 26s
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4. Cloud Computing and Virtualization
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Virtualization4m 20s
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Cloud computing models3m 44s
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Public cloud tiers5m 35s
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5. Managing Secure Networks
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Firewall rule management4m 41s
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Network monitoring4m 19s
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SNMP3m 18s
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Storage networks3m 8s
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Conclusion
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Next steps28s
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Video: Network ports