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Comp tia n+_session_06
 

Comp tia n+_session_06

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Comp tia n+_session_06 Comp tia n+_session_06 Presentation Transcript

  • CompTIA N+ Certification: TCP/IP Services Attended Installation Installing Windows XP Professional Using Objectives In this session, you will learn to: Identify NetBIOS name resolution methods. Identify common TCP/IP utilities and their functions. Identify the primary upper-layer services in use on a TCP/IP network. Identify TCP/IP interoperability services. Ver. 1.0 Session 6 Slide 1 of 41
  • CompTIA N+ Certification: TCP/IP Services Attended Installation Installing Windows XP Professional Using NetBIOS Name Resolution Microsoft networks can use NetBIOS names to communicate. NetBIOS names need to be resolved to protocol address for successful communication. Ver. 1.0 Session 6 Slide 2 of 41
  • CompTIA N+ Certification: TCP/IP Services Attended Installation Installing Windows XP Professional Using NetBIOS Names • NetBIOS names are a 16-byte common name format developed by IBM and Microsoft to identify network devices. • NetBIOS name consists of: Fifteen bytes representing characters in the name. Sixteenth byte representing the network service code. NetBIOS of every node on the network must be unique. DepartmentFiles 20 = Server service 15 bytes 16th byte Ver. 1.0 Session 6 Slide 3 of 41
  • CompTIA N+ Certification: TCP/IP Services Attended Installation Installing Windows XP Professional Using NetBIOS Broadcast Name Resolution The original NetBIOS name resolution method was to broadcast the NetBIOS name and wait for a response from the device with the name. Name and MAC address Broadcasts Ver. 1.0 Session 6 Slide 4 of 41
  • CompTIA N+ Certification: TCP/IP Services Attended Installation Installing Windows XP Professional Using Windows Internet Name Service (WINS) WINS is the Microsoft’s NetBIOS name server, which was developed to reduce the number of NetBIOS name resolution broadcasts. The WINS server uses a name resolution table to map NetBIOS names to protocol addresses. WINS clients are configured with the IP address of the WINS server, for automatic registry to the WINS database. WINSClient02 WINSClient01 WINS database 239.175.75.10 WINSClient01 WINSClient02 239.175.75.11 WINSClient03 239.175.75.12 WINSClient03 WINS Ver. 1.0 Session 6 Slide 5 of 41
  • CompTIA N+ Certification: TCP/IP Services Attended Installation Installing Windows XP Professional Using The WINS Name Registration Process The following figure shows the WINS name registration process: WINS WINS database 239.175.75.10 WINSClient01 WINSClient01 Registers name Duplicate name registration until lease expires fails Ver. 1.0 Session 6 Slide 6 of 41
  • CompTIA N+ Certification: TCP/IP Services Attended Installation Installing Windows XP Professional Using The LMHOSTS File • An LMHOSTS file is a text file that contains NetBIOS name–to–IP address mappings, each on a separate line. • LMHOSTS stands for LAN Manager HOSTS. • LMHOSTS files are of following types: Local Centralized Comments preceded Space between IP address NetBIOS by the # symbol sections name Ver. 1.0 Session 6 Slide 7 of 41
  • CompTIA N+ Certification: TCP/IP Services Attended Installation Installing Windows XP Professional Using Activity 7-7 Activity on Viewing a Sample LMHOSTS File Ver. 1.0 Session 6 Slide 8 of 41
  • CompTIA N+ Certification: TCP/IP Services Attended Installation Installing Windows XP Professional Using The NetBIOS Name Resolution Process The following figure shows the NetBIOS name resolution process: 3 Broadcast 2 WINS 1 NetBIOS cache 4 LMHOSTS Ver. 1.0 Session 6 Slide 9 of 41
  • CompTIA N+ Certification: TCP/IP Services Attended Installation Installing Windows XP Professional Using Non-WINS Clients WINS also supports adding non-WINS-enabled client’s names, such as names of UNIX servers, through manual entries to the static database of WINS server. WINS Static database entry WINS client UNIX server (Non-WINS client) Ver. 1.0 Session 6 Slide 10 of 41
  • CompTIA N+ Certification: TCP/IP Services Attended Installation Installing Windows XP Professional Using WINS Proxy Agents A WINS proxy agent enables non-WINS clients to use WINS for name resolution. Non-WINS Non-WINS client WINS client broadcasts WINS proxy agent Proxy agent intercepts broadcast Ver. 1.0 Session 6 Slide 11 of 41
  • CompTIA N+ Certification: TCP/IP Services Attended Installation Installing Windows XP Professional Using TCP/IP Utilities The TCP/IP protocol suite provides a host of utilities that can be used to troubleshoot and configure connectivity and name resolution. Some of these utilities are: The Tracert Utility The Netstat Utility The Nbstat Utility The Nslookup Utility The Arp Utility Ver. 1.0 Session 6 Slide 12 of 41
  • CompTIA N+ Certification: TCP/IP Services Attended Installation Installing Windows XP Professional Using The Tracert Utility • The Tracert (or Traceroute) utility determines the route data takes to get to a particular destination. • The Tracert utility is used with ICMP protocol. Total number of hops to remote host Response time Routers in trace path at each router to destination Ver. 1.0 Session 6 Slide 13 of 41
  • CompTIA N+ Certification: TCP/IP Services Attended Installation Installing Windows XP Professional Using The Netstat Utility • The Netstat utility shows the status of each active network connection. • The Netstat is used with TCP and UDP protocols. Address of the end of the connection Socket state of the connection Protocol Local address and port of the beginning of connection Ver. 1.0 Session 6 Slide 14 of 41
  • CompTIA N+ Certification: TCP/IP Services Attended Installation Installing Windows XP Professional Using The Nbtstat Utility • The Nbtstat utility is a Windows utility that is used to view and manage NetBIOS over TCP/IP (NetBT). NetBIOS name 16th-bit IP address service code associated with in hexadecimal NetBIOS name Name type – can Time remaining either be unique until cache or group entry is purged Ver. 1.0 Session 6 Slide 15 of 41
  • CompTIA N+ Certification: TCP/IP Services Attended Installation Installing Windows XP Professional Using The Nslookup Utility • The Nslookup utility is used to test and troubleshoot domain name servers. • Nslookup Syntax: [-option ...] [computer-to-find | - [server]] Nslookup has two modes: Interactive mode Non-interactive mode Entering interactive mode Address of default DNS server Query results for www.everythingforcoffee.com Ver. 1.0 Session 6 Slide 16 of 41
  • CompTIA N+ Certification: TCP/IP Services Attended Installation Installing Windows XP Professional Using The Arp Utility • The arp utility supports the ARP service of the TCP/IP protocol suite. • It enables an administrator: To view the ARP cache To add or delete cache entries ARP cache IP address MAC address Entry type Ver. 1.0 Session 6 Slide 17 of 41
  • CompTIA N+ Certification: TCP/IP Services Attended Installation Installing Windows XP Professional Using Activity 7-9 Activity on Using TCP/IP Diagnostic Utilities Ver. 1.0 Session 6 Slide 18 of 41
  • CompTIA N+ Certification: TCP/IP Services Attended Installation Installing Windows XP Professional Using TCP/IP Upper-Layer Services Nodes are assigned IP address so that they can communicate within a TCP/IP network. The various TCP/IP upper-layer services are: File Transfer Protocol (FTP) Telnet Network Time Protocol (NTP) Simple Mail Transfer Protocol (SMTP) Post Office Protocol Version 3 (POP3) Internet Mail Access Protocol (IMAP4) Network News Transfer Protocol (NNTP) Hypertext Transfer Protocol (HTTP) HTTPS Ver. 1.0 Session 6 Slide 19 of 41
  • CompTIA N+ Certification: TCP/IP Services Attended Installation Installing Windows XP Professional Using File Transfer Protocol (FTP) • FTP enables the transfer of files between a user’s workstation and a remote host. • FTP service must be running on the remote host and the ftp utility might be installed on the client. FTP daemon FTP utility Ver. 1.0 Session 6 Slide 20 of 41
  • CompTIA N+ Certification: TCP/IP Services Attended Installation Installing Windows XP Professional Using Activity 7-11 Activity on Using the Command-Line FTP Utility Ver. 1.0 Session 6 Slide 21 of 41
  • CompTIA N+ Certification: TCP/IP Services Attended Installation Installing Windows XP Professional Using Activity 7-12 Activity on Using a Browser as an FTP Client Ver. 1.0 Session 6 Slide 22 of 41
  • CompTIA N+ Certification: TCP/IP Services Attended Installation Installing Windows XP Professional Using Telnet • Telnet is a terminal emulation protocol that enables a user at one site to simulate a session on a remote host as if the terminal were directly attached. Telnet daemon C:> telnet 10.1.1.3 Password: Ver. 1.0 Session 6 Slide 23 of 41
  • CompTIA N+ Certification: TCP/IP Services Attended Installation Installing Windows XP Professional Using Network Time Protocol (NTP) • NTP is an Internet standard protocol that synchronizes the clock times of computers in a network. • NTP runs continuously in the background on a computer. Master Clock 09:21:40:23 NTP Ver. 1.0 Session 6 Slide 24 of 41
  • CompTIA N+ Certification: TCP/IP Services Attended Installation Installing Windows XP Professional Using Simple Mail Transfer Protocol (SMTP) • SMTP is used to send email from a client to a server or between servers. • SMTP uses a store-and-forward process. SMTP Email server Email client Ver. 1.0 Session 6 Slide 25 of 41
  • CompTIA N+ Certification: TCP/IP Services Attended Installation Installing Windows XP Professional Using Post Office Protocol Version 3 (POP3) • POP3Office Protocol version 3 (POP3) is a protocol used Post is a protocol used to retrieve email messages from a mailbox onemail messages from a mailbox on a mail server. to retrieve a mail server. • Email messages wait in the mailbox on the server until the client retrieves them. POP3 POP3 POP3 Email server Email client Email server Email client Email client Ver. 1.0 Session 6 Slide 26 of 41
  • CompTIA N+ Certification: TCP/IP Services Attended Installation Installing Windows XP Professional Using Internet Mail Access Protocol (IMAP4) • IMAP4 is also used to retrieve messages from a mail server. • IMAP4 enables users to search through messages by keywords. • IMAP4 also enables users to choose which messages to download locally. Mail managed on server IMAP4 server Email client Ver. 1.0 Session 6 Slide 27 of 41
  • CompTIA N+ Certification: TCP/IP Services Attended Installation Installing Windows XP Professional Using Network News Transfer Protocol (NNTP) • NNTP is a protocol used to post and retrieve messages from the worldwide bulletin board system called USENET. • USENET contains more than 14000 forums called as newsgroups. Subscriber Ver. 1.0 Session 6 Slide 28 of 41
  • CompTIA N+ Certification: TCP/IP Services Attended Installation Installing Windows XP Professional Using Hypertext Transfer Protocol (HTTP) • HTTP is the TCP/IP service that enables clients to connect and interact with websites. • HTTP is a stateless protocol. • HTTP supports persistent connections to web resources to reduce reconnection times. Ver. 1.0 Session 6 Slide 29 of 41
  • CompTIA N+ Certification: TCP/IP Services Attended Installation Installing Windows XP Professional Using Activity 7-13 Activity on Using HTTP to View a Website Ver. 1.0 Session 6 Slide 30 of 41
  • CompTIA N+ Certification: TCP/IP Services Attended Installation Installing Windows XP Professional Using HTTPS • Hypertext Transfer Protocol Secure (HTTPS) is a secure version of HTTP. • HTTPS supports web commerce by providing a a secure connection between a web browser and server. Ver. 1.0 Session 6 Slide 31 of 41
  • CompTIA N+ Certification: TCP/IP Services Attended Installation Installing Windows XP Professional Using TCP/IP Interoperability Services Some of the TCP/IP interoperability services provided by TCP/IP suite are: Line Printer Remote (LPR) and Line Printer Daemon (LPD) Network File System (NFS) Secure Shell (SSH) Secure Copy Protocol (SCP) Server Message Block (SMB) Lightweight Directory Access Protocol (LDAP) Simple Network Management Protocol (SNMP) Zeroconf (Zero Configuration Networking) Ver. 1.0 Session 6 Slide 32 of 41
  • CompTIA N+ Certification: TCP/IP Services Attended Installation Installing Windows XP Professional Using Line Printer Remote (LPR) and Line Printer Daemon (LPD) • LPR and LPD can be used with TCP/IP for network printing. • LPR client sends a print request to the IP address of the LPD print server. LPD LPR Ver. 1.0 Session 6 Slide 33 of 41
  • CompTIA N+ Certification: TCP/IP Services Attended Installation Installing Windows XP Professional Using Network File System (NFS) • NFS is a client/server application that enables users to access shared files stored on different types of computers and work with those files as if they were stored locally. UNIX Windows Ver. 1.0 Session 6 Slide 34 of 41
  • CompTIA N+ Certification: TCP/IP Services Attended Installation Installing Windows XP Professional Using Secure Shell (SSH) • SSH is a program that enables a user or application to log on to another computer over a network, execute commands, and manage files. Password Password is encrypted 011001 slogin Session is secured Ver. 1.0 Session 6 Slide 35 of 41
  • CompTIA N+ Certification: TCP/IP Services Attended Installation Installing Windows XP Professional Using Secure Copy Protocol (SCP) • SCP uses SSH to securely transfer computer files between a local and a remote host, or between two remote hosts. SCP SSH Ver. 1.0 Session 6 Slide 36 of 41
  • CompTIA N+ Certification: TCP/IP Services Attended Installation Installing Windows XP Professional Using Server Message Block (SMB) • SMB is a protocol used for sharing resources such as files, printers, and serial ports between computers. NetBIOS client TCP/IP IPX/SPX NetBEUI Ver. 1.0 Session 6 Slide 37 of 41
  • CompTIA N+ Certification: TCP/IP Services Attended Installation Installing Windows XP Professional Using Lightweight Directory Access Protocol (LDAP) • LDAP is a protocol that defines how a client can access information, perform operations, and share directory data on a directory server. LDAP/DNS client LDAP server DNS server LDAP servers store DNS locates directory data LDAP servers Ver. 1.0 Session 6 Slide 38 of 41
  • CompTIA N+ Certification: TCP/IP Services Attended Installation Installing Windows XP Professional Using Simple Network Management Protocol (SNMP) • SNMP is an Application-layer service used to collect information from network devices for diagnostic and maintenance purposes. SNMP agents Servers Routers Printers Ver. 1.0 Session 6 Slide 39 of 41
  • CompTIA N+ Certification: TCP/IP Services Attended Installation Installing Windows XP Professional Using Zeroconf (Zero Configuration Networking) Zero Configuration Networking (Zeroconf) is a proposed set of standards that provides for: Network-layer address assignment Automatic multicast address assignment Name/address resolution Discovery of network services Ver. 1.0 Session 6 Slide 40 of 41
  • CompTIA N+ Certification: TCP/IP Services Attended Installation Installing Windows XP Professional Using Summary In this session, you learned that: NetBIOS name resolution resolves the NetBIOS names to protocol address and are used on Microsoft networks. The TCP/IP utilities gather information about how the systems are using and communicating over TCP/IP and also provides information when communication is not working properly. The TCP/IP upper-layer services helps in executing tasks such as : – Transferring and sharing files – Reading and sending emails – Reading and posting messages on a newsgroup – Browsing the World Wide Web – The TCP/IP interoperability services enables the devices that are not natively compatible to securely communicate and share resources over a network. Ver. 1.0 Session 6 Slide 41 of 41