1. Internet Business Foundations © 2004 ProsoftTraining All rights reserved

2. Lesson 6: Internet Services and Tools

3. Objectives Use a news client Use a news client Use Telnet Use Telnet Use FTP Use FTP Manage downloaded files Manage downloaded files Use Virtual Network Computing (VNC) and Microsoft Terminal Services Use Virtual Network Computing (VNC) and Microsoft Terminal Services Use instant messaging applications Use instant messaging applications Identify the functions of peer-to-peer networks Identify the functions of peer-to-peer networks Identify the functions of LDAP Identify the functions of LDAP Identify the functions of Concurrent Versions System (CVS) Identify the functions of Concurrent Versions System (CVS) Troubleshoot Internet problems using TCP/IP tools Troubleshoot Internet problems using TCP/IP tools

4. Newsgroups Purpose of newsgroups Purpose of newsgroups Newsgroup postings Newsgroup postings How to find newsgroups How to find newsgroups Newsgroup categories Newsgroup categories Newsgroup structure Newsgroup structure Configuring a news client Configuring a news client

5. Telnet Telnet is a remote host connection Telnet is a remote host connection You log on to a server and access information as if you were sitting in front of the server You log on to a server and access information as if you were sitting in front of the server Telnet provides a login shell (an environment that allows you to issue commands) Telnet provides a login shell (an environment that allows you to issue commands) Requires an account and password on the host computer Requires an account and password on the host computer A generic user name and password allow access to public servers A generic user name and password allow access to public servers SSH (Secure Shell) is a secure form of Telnet SSH (Secure Shell) is a secure form of Telnet

6. File Transfer Protocol (FTP) Used to transfer files between two computers Used to transfer files between two computers Public FTP servers generally allow anonymous logon and allow downloading of files only Public FTP servers generally allow anonymous logon and allow downloading of files only Files are downloaded via the FTP “get” command Files are downloaded via the FTP “get” command Corporate FTP servers usually require a user name and password (you may upload files if you have permission) Corporate FTP servers usually require a user name and password (you may upload files if you have permission) Files are uploaded via the FTP “put” command Files are uploaded via the FTP “put” command You can use command-line FTP, a browser’s built-in FTP client, or a specialized FTP client You can use command-line FTP, a browser’s built-in FTP client, or a specialized FTP client Secure versions of FTP include: Secure versions of FTP include: Secure Copy (SCP)Secure Copy (SCP) SSH File Transfer Protocol (S/FTP)SSH File Transfer Protocol (S/FTP) SSL/TLS-enabled FTP (FTPS)SSL/TLS-enabled FTP (FTPS)

7. Managing Download Files You may need to define MIME types for files that you download You may need to define MIME types for files that you download Many files downloaded from FTP servers are compressed (using a compression utility) and must be decompressed before you can use them Many files downloaded from FTP servers are compressed (using a compression utility) and must be decompressed before you can use them Common compression utilities include: Common compression utilities include: Zip/unzipZip/unzip Bzip2/bunzip2Bzip2/bunzip2 Bzip/bunzipBzip/bunzip Gzip/gunzipGzip/gunzip Compress/uncompressCompress/uncompress RAR/WinRARRAR/WinRAR

8. Virtual Network Computing (VNC) VNC allows you to control a computer at a remote location as if you were sitting in front of it VNC allows you to control a computer at a remote location as if you were sitting in front of it VNC consists of two components: the server and the viewer VNC consists of two components: the server and the viewer VNC provides a fill GUI display and allows authenticated users to log on and see the same display they would see if they were sitting in front of the (server) computer VNC provides a fill GUI display and allows authenticated users to log on and see the same display they would see if they were sitting in front of the (server) computer The viewer and server do not need to be running the same operating system The viewer and server do not need to be running the same operating system

9. Instant Messaging (IM) Computer-based method of communication in which users can type and view messages sent to one or more recipients and view the responses immediately Computer-based method of communication in which users can type and view messages sent to one or more recipients and view the responses immediately Contacts must be online to receive messages Contacts must be online to receive messages Can also be used to send files, view photos, send Web links and talk to contacts Can also be used to send files, view photos, send Web links and talk to contacts Becoming very popular in the workplace Becoming very popular in the workplace Requires an instant messaging client and an account for instant messaging service Requires an instant messaging client and an account for instant messaging service There are several IM services, clients and servers in widespread use There are several IM services, clients and servers in widespread use

10. Peer-to-Peer Networks In a peer-to-per network, each computer has both client and server capabilities In a peer-to-per network, each computer has both client and server capabilities On the Internet, a P2P network allows a group of users to connect with each other and directly share files among their hard drives On the Internet, a P2P network allows a group of users to connect with each other and directly share files among their hard drives P2P networks are inexpensive and allow users to share bandwidth P2P networks are inexpensive and allow users to share bandwidth

11. Lightweight Directory Access Protocol (LDAP) LDAP directories contain contact information (name, address, e-mail address, public keys, etc.) LDAP directories contain contact information (name, address, e-mail address, public keys, etc.) Simplified version of X.500 Simplified version of X.500 Supports TCP/IP Supports TCP/IP Makes global directory service available to everyone Makes global directory service available to everyone Modern e-mail clients are capable of searching an LDAP directory Modern e-mail clients are capable of searching an LDAP directory

12. Concurrent Versions System (CVS) Development tools for programmers Development tools for programmers Used on Linux or other UNIX-based systems Used on Linux or other UNIX-based systems Controls different versions of the pieces of a program as those pieces are developed Controls different versions of the pieces of a program as those pieces are developed Allows programmers to use the latest (debugged) versions of their co-workers’ code while developing their own portions Allows programmers to use the latest (debugged) versions of their co-workers’ code while developing their own portions Allows a large program to be developed in a much shorter time frame Allows a large program to be developed in a much shorter time frame

13. Communicating Effectively over the Internet Netiquette Netiquette Internet ethics Internet ethics Avoiding harassment Avoiding harassment Creating effective messages Creating effective messages Blogging Blogging

14. Troubleshooting Using TCP/IP Tools Use ipconfig to display your system’s IP configurations Use ipconfig to display your system’s IP configurations Use ping to test connectivity between a source system and a destination system Use ping to test connectivity between a source system and a destination system Use tracert to determine the path between a source system and a destination system Use tracert to determine the path between a source system and a destination system