Overview

Introduction

Welcome to the Network Services and Protocols (Part 3) Practice Lab. In this module, you will be provided with the instruction and computer hardware to develop your hands-on skills in the defined topics.

Learning Outcomes

In this module, you will complete the following exercises:

  • Exercise 1 - Configuring Port 21 for FTP
  • Exercise 2 - Configuring Port 161 for SNMP
  • Exercise 3 - Configuring Port 23 for Telnet
  • Exercise 4 - Configuring Port 445 for SMB
  • Exercise 5 - Configuring Port 3389 for RDP
  • Exercise 6 - Using VNC and SSH

After completing this lab, you will be able to:

  • Configure port 21 for FTP
  • Configure port 161 for SNMP
  • Configure port 23 for Telnet
  • Configure port 445 for SMB
  • Configure port 3389 for RDP
  • Configure VNC and SSH

Exam Objectives

  • N10-007 1.1: Explain the purposes and uses of ports and protocols (Protocols and ports, SSH 22)
  • N10-007 1.1: Explain the purposes and uses of ports and protocols (Protocols and ports, SNMP 161)
  • N10-007 1.1: Explain the purposes and uses of ports and protocols (Protocols and ports, FTP 20, 21)
  • N10-007 1.1: Explain the purposes and uses of ports and protocols (Protocols and ports, TELNET 23)
  • N10-007 1.1: Explain the purposes and uses of ports and protocols (Protocols and ports, RDP 3389)
  • N10-007 1.1: Explain the purposes and uses of ports and protocols (Protocols and ports, SMB 445)
  • N10-007 3.3: Explain common scanning, monitoring, and patching processes and summarize their expected output (SNMP monitors, MIB)
  • N10-007 3.4: Given a scenario, use remote access methods (VPN, RDP)
  • N10-007 3.4: Given a scenario, use remote access methods (VPN, SSH)
  • N10-007 3.4: Given a scenario, use remote access methods (VPN, VNC)
  • N10-007 3.4: Given a scenario, use remote access methods (VPN, Telnet)
  • N10-007 3.4: Given a scenario, use remote access methods (Remote file access, FTP/FTPS)
  • N10-007 5.2: Given a scenario, use the appropriate tool (Command line, ifconfig)
  • N10-007 5.2: Given a scenario, use the appropriate tool (Command line, netstat)

Lab Duration

It will take approximately 1 hour to complete this lab.

Exercise 1 - Configuring Port 21 for FTP

File Transfer Protocol (FTP) is a standard network protocol used to transfer files from host (computer) to another host over a TCP-based network like a private intranet or the Internet.

FTP is built on client-server computing model. It uses a separate data and control connections between a client (workstation) and FTP server. FTP users may authenticate themselves in the form of a username and password which are transmitted as plain-text. For this reason, most FTP sites allow anonymous as the username and an e-mail address as the password.

FTP uses two port numbers. Port 20 for Data and port 21 for Control. A server running FTP service listens on port 21 for FTP sessions, by default.

Learning Outcomes

After completing this exercise, you will be able to:

  • Configure port 21 for FTP

Exercise 2 - Configuring Port 161 for SNMP

Simple Network Management Protocol (SNMP) is a network protocol for managing devices on a TCP/IP network. Devices that support SNMP include servers, workstations, routers, switches, printers and much more. SNMP is often used in network management systems to monitor network-attached devices for conditions that call for administrative attention-for example the administrator can be alerted if the router fails or be alerted when disk space on a server is running out.

SNMP-managed devices also called “agents,” listen on UDP port 161 for SNMP requests which are forwarded to an SNMP management station that runs proprietary software for interpreting the data received from agents.

Learning Outcomes

After completing this exercise, you will be able to:

-Configure port 161 for SNMP

Exercise 3 - Configuring Port 23 for Telnet

Telnet is an application protocol that enables text-based communication between devices on a network. Telnet offers a user-interface that makes it easy to perform remote configuration and maintain various devices on the network. Telnet supports devices on WANs (such as the Internet) as well as on LANs (within an enterprise network). By default, the Telnet servers listen for incoming connection requests on port 23.

Learning Outcomes

After completing this exercise, you will be able to:

  • Configure port 23 for Telnet

Exercise 4 - Configuring Port 445 for SMB

Server Message Block (SMB) is a file and print sharing protocol that allows applications on a computer to read and write to files and to request services from servers in a computer network. When using the SMB protocol, an application (or the user of an application) can access folders, files, printers and other resources at a remote server. SMB uses TCP port 445 by default.

Learning Outcomes

After completing this exercise, you will be able to:

  • Configure port 445 for SMB

Exercise 5 - Configuring Port 3389 for RDP

Remote Desktop Protocol (RDP) is a client-server based protocol that provides a user with a graphical user interface (GUI) to connect to another computer over a network connection. RDP is designed for secure communications between Windows Terminal Services Client and Windows Terminal Services Server. This protocol supports devices connected to the whole range of network sizes - from a WAN (such as over the Internet) on one end to a LAN (within an enterprise network) on the other. RDP uses port 3389 by default.

Learning Outcomes

After completing this exercise, you will be able to:

  • Configure port 3389 for RDP

Exercise 6 - Using VNC and SSH

After completing this exercise, you will be able to:

  • Configure VNC and SSH

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