Common TCP Applications And Server Port Assignments

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| By Rjmckay
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1. Port 80

Explanation

The classic example of a TCP-based messaging protocol.

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Common TCP Applications And Server Port Assignments - Quiz

Explore the Common TCP Applications and Server Port Assignments through this quiz. Learn about key protocols like FTP, Telnet, SMTP, DNS, Gopher, and HTTP, and their respective port... see morenumbers. Enhance your understanding of networking essentials and server management. see less

2. Port 23

Explanation

Interactive session-based protocol. Requires the connection-based nature of TCP.

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3. Port 20 and 21

Explanation

Used to send large files, so ideally suited for TCP.

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4. Port 25

Explanation

Uses an exchange of commands, and sends possibly large files between devices.

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5. Port 53

Explanation

An example of a protocol that uses both UDP and TCP. For simple requests and replies, DNS uses UDP. For larger messages, especially zone transfers, TCP is used.

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6. Port 110

Explanation

E-mail message retrieval protocols; use TCP to exchange commands and data.

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7. Port 2049

Explanation

NFS was original implemented using UDP for performance reasons. Given that it is responsible for large transfers of files and UDP is unreliable, this was probably not the best idea, and TCP versions were created. The latest version of NFS uses TCP exclusively.

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8. Port 179

Explanation

While interior routing protocols like RIP and OSPF use either UDP or IP directly, BGP runs over TCP. This allows BGP to assume reliable communication even as it sends data over potentially long distances.

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9. Port 70

Explanation

A messaging protocol that has been largely replaced by the WWW.

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10. Port 143

Explanation

Another e-mail message retrieval protocol.

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11. Port 139

Explanation

A session protocol, clearly better suited to TCP than UDP.

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12. Port 194

Explanation

IRC is like Telnet in that it is an interactive protocol that is strongly based on the notion of a persistent connection between a client and server.

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13. Port 119

Explanation

Used for transferring NetNews (USEnet) messages, which can be lengthy.

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14. Ports: 6000-6063

Explanation

Used for the X Window graphical system. Multiple ports are dedicated to allow many sessions.

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Port 80
Port 23
Port 20 and 21
Port 25
Port 53
Port 110
Port 2049
Port 179
Port 70
Port 143
Port 139
Port 194
Port 119
Ports: 6000-6063
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