1. Nassau Community College
Fall 2011
Session 16 Windows 7 Professional DNS & Active Directory
Nassau Community College ITE153 – Operating Systems
Fall 2011 1
ITE153 - Operating Systems Management

2. Nassau Community College
Fall 2011
Session 16 Windows 7 Professional Configuring TCP/IP Addressing & Name Resolution
Nassau Community College ITE153 – Operating Systems
Fall 2011 2
ITE153 - Operating Systems Management

3. Nassau Community College ITE153 – Operating Systems
Overview
Configuring IP Addresses
Troubleshooting IP Addresses
Determining TCP/IP Name Resolution Methods
Configuring a DNS and WINS Client
Connecting to a Remote Host
Nassau Community College ITE153 – Operating Systems
Fall 2011

4. Configuring IP Addresses
Assigning Static IP Addresses
Overview of Dynamic Address Assignment
Using DHCP to Automate IP Address Assignments
Enabling Alternate IP Configuration
Nassau Community College ITE153 – Operating Systems
Fall 2011

5. Assigning Static IP Addresses
Client with Static Addressing
Specifies
Nassau Community College ITE153 – Operating Systems
Fall 2011

6. Overview of Dynamic Address Assignment
Alternate static address
Automatic Private IP Address
DHCP Server
Client with Dynamic Addressing
Request for IP address
Is DHCP
available? No
Is alternate IP configured? No
Automatic Private IP address
generates IP address
Assign alternate
IP address
Yes
Yes
Assign an IP
address
Nassau Community College ITE153 – Operating Systems
Fall 2011

7. Using DHCP to Automate IP Address Assignments
Nassau Community College ITE153 – Operating Systems
Fall 2011

8. Enabling Alternate IP Configuration
Nassau Community College ITE153 – Operating Systems
Fall 2011

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
Nassau Community College ITE153 – Operating Systems
Fall 2011

10. Using TCP/IP Troubleshooting Utilities
arp
hostname
ipconfig
ping
pathping
tracert
Nassau Community College ITE153 – Operating Systems
Fall 2011

11. Using ipconfig to Troubleshoot IP Addressing
Nassau Community College ITE153 – Operating Systems
Fall 2011

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
Nassau Community College ITE153 – Operating Systems
Fall 2011

13. Lab A: Configuring IP Addresses for Windows XP Professional
Nassau Community College ITE153 – Operating Systems
Fall 2011

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
Nassau Community College ITE153 – Operating Systems
Fall 2011

15. Nassau Community College ITE153 – Operating Systems
Types of Names
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
Host 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
NetBIOS name
Nassau Community College ITE153 – Operating Systems
Fall 2011

16. Mapping Names: Dynamic or Static Tables
Host name to IP
NetBIOS name to IP
Dynamic tables
DNS server
WINS server
Static tables
HOSTS file
LMHOSTS file
Nassau Community College ITE153 – Operating Systems
Fall 2011

17. Nassau Community College ITE153 – Operating Systems
Dynamic IP Mapping
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
DNS server
Provides a distributed database for registering dynamic mappings of NetBIOS names
Maps NetBIOS names to IP addresses
WINS server
Nassau Community College ITE153 – Operating Systems
Fall 2011

18. Nassau Community College ITE153 – Operating Systems
Static IP Mapping
Provides name resolution for host name to IP address
Multiple host names can be assigned to the same IP address
HOSTS 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
LMHOSTS file
Nassau Community College ITE153 – Operating Systems
Fall 2011

19. Selecting a Name Resolution Method
DNS is required when:
Client is a member of the active directory domain
Client needs to communicate over the Internet
DNS 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
WINS server
Nassau Community College ITE153 – Operating Systems
Fall 2011

20. Host Name Resolution Process
LMHOSTS
file 9 A
Enter command 1 8
Broadcast
Local host name 2 3
DNS cache
HOSTS
file 4
WINS server 7
NetBIOS name cache 6
DNS server 5
Nassau Community College ITE153 – Operating Systems
Fall 2011

21. NetBIOS Name Resolution Process
NetBIOS name cache 2
WINS server 3
Broadcast 4
DNS server 7
HOSTS
file 6
LMHOSTS 5
Enter command 1 A
Nassau Community College ITE153 – Operating Systems
Fall 2011

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
Nassau Community College ITE153 – Operating Systems
Fall 2011

23. Specifying Host Names, Domain Names, and Connection-Specific Names
Nassau Community College ITE153 – Operating Systems
Fall 2011

24. Configuring a DNS Client
Nassau Community College ITE153 – Operating Systems
Fall 2011

25. Specifying Additional DNS Servers
Nassau Community College ITE153 – Operating Systems
Fall 2011

26. Configuring DNS Query Settings
Nassau Community College ITE153 – Operating Systems
Fall 2011

27. Configuring DHCP to Dynamically Update DNS
DHCP registered
Client registered
DHCP dynamic update
Client dynamic update
DNS Server
DHCP Server
Computer1
Static or Dynamic
Request for IP address 1
Assign IP address of 2 3
DNS database
Computer
Nassau Community College ITE153 – Operating Systems
Fall 2011

28. Troubleshooting DNS Name Resolution1
Use nslookup command 2
Change the host name resolution configuration
Nassau Community College ITE153 – Operating Systems
Fall 2011

29. Configuring a WINS Client
Manual configuration
Automatic configuration
DHCP clients
DHCP server
Nassau Community College ITE153 – Operating Systems
Fall 2011

30. Lab B: Configuring the DNS Client for Windows XP Professional
Nassau Community College ITE153 – Operating Systems
Fall 2011

31. Connecting to a Remote Host
Working with FTP
Working with Telnet
Using HyperTerminal
Nassau Community College ITE153 – Operating Systems
Fall 2011

32. Nassau Community College ITE153 – Operating Systems
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
Nassau Community College ITE153 – Operating Systems
Fall 2011

33. Working with Telnet Telnet client: Telnet server:
Issuing UNIX commands
UNIX server
Telnet server
Windows XP Professional
Telnet client
UNIX workstation
Issuing Telnet commands
Nassau Community College ITE153 – Operating Systems
Fall 2011

34. Nassau Community College ITE153 – Operating Systems
Using HyperTerminal
Nassau Community College ITE153 – Operating Systems
Fall 2011

35. Nassau Community College ITE153 – Operating Systems
SSH & Putty
Secure Shell Host
Putty -
Nassau Community College ITE153 – Operating Systems
Fall 2011

36. Nassau Community College ITE153 – Operating Systems
Review
Configuring IP Addresses
Troubleshooting IP Addresses
Determining TCP/IP Name Resolution Methods
Configuring a DNS and WINS Client
Connecting to a Remote Host
Nassau Community College ITE153 – Operating Systems
Fall 2011

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