Session 16 Windows 7 Professional DNS & Active Directory

Transcription

1 Session 16 Windows 7 Professional DNS & Active Directory Fall 2011 ITE153 Operating Systems 1

2 Session 16 Windows 7 Professional Configuring TCP/IP Addressing & Name Resolution Fall 2011 ITE153 Operating Systems 2

3 Overview Configuring IP Addresses Troubleshooting IP Addresses Determining TCP/IP Name Resolution Methods Configuring a DNS and WINS Client Connecting to a Remote Host 3

4 Configuring IP Addresses Assigning Static IP Addresses Overview of Dynamic Address Assignment Using DHCP to Automate IP Address Assignments Enabling Alternate IP Configuration 4

5 Assigning Static IP Addresses Client with Static Addressing Specifies

6 Overview of Dynamic Address Dynamic address Automatic Private IP address generates IP address No Assignment Alternate static address Automatic Private IP Address Client with Dynamic Addressing Is alternate IP configured? Yes Request for IP address Assign alternate IP address No DHCP Server Is DHCP available? Yes Assign an IP address 6

7 Using DHCP to Automate IP Address Assignments 7

8 Enabling Alternate IP Configuration 8

9 Troubleshooting IP Addresses Using TCP/IP Troubleshooting Utilities Using ipconfig to Troubleshoot IP Addressing Using ping to Troubleshoot IP Addressing Using tracert to See Packet Traversal 9

10 Using TCP/IP Troubleshooting Utilities arp hostname ipconfig ping pathping tracert 10

11 Using ipconfig to Troubleshoot IP Addressing 11

12 Using ping to Troubleshoot IP Addressing Testing IP Configuration Ping (Loopback Address) Ping IP address of the computer Ping IP address of the default gateway Ping IP address of the remote host 12

13 Lab A: Configuring IP Addresses for Windows XP Professional 13

14 Determining TCP/IP Name Resolution Methods Types of Names Mapping Names: Dynamic or Static Tables Dynamic IP Mapping Static IP Mapping Selecting a Name Resolution Method Host Name Resolution Process NetBIOS Name Resolution Process 14

15 Types of Names Host name Assigned to a computer s IP address Up to 255 characters in length Can contain alphabetic and numeric characters, hyphens, and periods Together with the domain name creates a fully qualified domain name NetBIOS name 16-byte address 15 of the bytes may be used for the name 16th byte is used by the services that a computer offers to the network 15

16 Mapping Names: Dynamic or Static Tables Host name to IP NetBIOS name to IP DNS server Dynamic tables WINS server HOSTS file Static tables LMHOSTS file 16

17 Dynamic IP Mapping DNS server A system for naming computers and network services Naming system is organized in a hierarchical fashion Maps domain names to IP address Mapping records are stored on a DNS server WINS server Provides a distributed database for registering dynamic mappings of NetBIOS names Maps NetBIOS names to IP addresses 17

18 Static IP Mapping HOSTS file Provides name resolution for host name to IP address Multiple host names can be assigned to the same IP address LMHOSTS file Provides name resolution for NetBIOS name to IP address A Part of the LMHOSTS file is pre-loaded into memory One IP per NetBIOS name; names can be a single device or a group 18

19 Selecting a Name Resolution Method DNS server DNS is required when: Client is a member of the active directory domain Client needs to communicate over the Internet WINS server WINS is required when: Client is a member of a Windows NT 4.0 or earlier domain Client applications or services require NetBIOS name resolution 19

20 Host Name Resolution Process A 1 Enter command 9 LMHOSTS S file 3 2 Local host name DNS cache 8 Broadcast 4 HOSTS file 7 WINS server r 5 DNS server 6 NetBIOS name cache 20

21 NetBIOS Name Resolution Process A 1 Enter command 7 DNS server r 2 NetBIOS name cache 6 HOSTS file 3 WINS server 4 Broadcast 5 LMHOSTS S file 21

22 Configuring a DNS and WINS Client Specifying Host Names, Domain Names, and Connection-Specific Names Configuring a DNS Client Specifying Additional DNS Servers Configuring DNS Query Settings Configuring DHCP to Dynamically Update DNS Troubleshooting DNS Name Resolution Configuring a WINS Client 22

23 Names, and Connection-Specific Names 23

24 Configuring a DNS Client 24

25 Specifying Additional DNS Servers 25

26 Configuring DNS Query Settings 26

27 Configuring DHCP to Dynamically Client registered Update DNS DHCP registered Computer1 Static or Dynamic 1 Request for IP address DHCP Server Client dynamic update Assign IP address of DHCP dynamic update Computer DNS Server DNS database 27

28 Troubleshooting DNS Name Resolution 1 Use nslookup command 2 Change the host name resolution configuration 28

29 Configuring a WINS Client Manual configuration Automatic configuration DHCP server DHCP clients 29

30 Lab B: Configuring the DNS Client for Windows XP Professional 30

31 Connecting to a Remote Host Working with FTP Working with Telnet Using HyperTerminal 31

32 Working with FTP Windows Explorer graphical client Command line client Windows XP Professional provides various client FTP interfaces along with the tools for hosting FTP sites by using IIS 32

33 Telnet client: Working with Telnet UNIX server Telnet server Issuing UNIX commands Windows XP Professional Telnet client Telnet server: Issuing Telnet commands UNIX workstation Telnet client Windows XP Professional Telnet server 33

34 Using HyperTerminal 34

35 SSH & Putty Secure Shell Host Putty - Fall 2011 ITE153 Operating Systems 35

36 Review Configuring IP Addresses Troubleshooting IP Addresses Determining TCP/IP Name Resolution Methods Configuring a DNS and WINS Client Connecting to a Remote Host 36

37 Homework Review the Slides Review Lesson 6, 8, & 17 In The Text Try This At Home: Bring Up Windows 7 under VMPlayer Fall 2011 ITE153 Operating Systems 37