Course Description and Outline. IT Essential II: Network Operating Systems V2.0

Transcription

1 Course Description and Outline IT Essential II: Network Operating Systems V2.0

2 Course Outline 1. Operating System Fundamentals 1.1 Operating System Basics Overview of PC operating systems PCs and computer networks The Kernel The user interface The file system Common desktop operating systems 1.2 Microsoft Windows MS-DOS Microsoft Windows Windows 9x Windows Windows XP Windows GUI Windows CLI Windows control panel 1.3 UNIX and Linux on the Desktop Origins of UNIX Origins of Linux Linux/UNIX GUI Linux/UNIX CLI Linux and UNIX system configuration tools 1.4 Network Operating Systems Overview Common network operating systems The client-server model Evaluating customer resources and requirements 2. Introduction to Networking 2.1 Benefits of Networking File and print services Mail services Directory and name services Copyright 2002, Cisco Systems, Inc. IT Essentials II: Network Operating Systems v2.0 2

3 2.1.4 The Internet Network administration 2.2 Types of Networks An overview Local area networks (LANs) Wide area networks (WANs) Peer-to-peer networks Client/server networks 2.3 Networking Standards Proprietary vs. open standards OSI Reference model DoD model IEEE ITU Other standards 2.4 Networking Protocols Protocol suite TCP/IP IPX/SPX AppleTalk 2.5 LAN Architectures Ethernet Token Ring FDDI 3. Physical Components of A Network 3.1 Adding and configuring a Network Interface Card (NIC) What is a NIC? Setting the IP address, gateway and DNS DHCP servers Domain name system Default gateway 3.2 Topologies The network topology Copyright 2002, Cisco Systems, Inc. IT Essentials II: Network Operating Systems v2.0 3

4 3.2.2 Bus topology Star topology Ring topology Mesh topology Hybrid topology Physical vs. logical topology 3.3 Physical Media Types Networking media Coaxial cable Twisted-pair cable Fiber-optic cable Wireless 3.4 Network Devices Hubs and repeaters Bridges and switches Routers 3.5 Connecting to the Internet (WANs) Synchronous and asynchronous serial lines Modems Dial-up networking, modem standards, AT commands ISPs and Internet backbone providers DSL Cable modems Cable modem vs. DSL Internet technologies 4 IT Essentials II: Network Operating Systems v2.0 Copyright 2002, Cisco Systems, Inc.

5 4. TCP/IP Networking 4.1. Introduction to TCP/IP Origins and growth of TCP/IP The TCP/IP network model TCP/IP and network operating systems 4.2. IP Addressing IPv4 addressing IPv4 addressing overview Class A addresses Class B addresses Class C addresses Class D and E addresses The IPv4 address crisis Subnetting 4.3 Name Resolution Overview of name resolution Hostnames and host tables The domain name system Name services and the NOS WINS 4.4 TCP/IP Protocols Overview of TCP/IP protocols Address Resolution Protocol (ARP) Internet Control Message Protocol (ICMP) Transmission Control Protocol (TCP) User Datagram Protocol (UDP) Domain Name Service (DNS) Hypertext Transport Protocol (HTTP) File Transfer Protocol (FTP) Telnet SMTP POP IMAP Copyright 2002, Cisco Systems, Inc. IT Essentials II: Network Operating Systems v2.0 5

6 5. Overview of Network Services 5.1 Network Services An Introduction to Network/NOS Services 5.2 Remote Administration and Access Services What is remote access? Telecommuting Mobile users Terminal emulation services Telnet services Configuring remote access for a client Controlling remote access rights Remote administration to a Linux system 5.3 Directory Services What is a directory service? Directory service standards Windows 2000 s Active Directory Novell s NDS Network Information Service (NIS) 5.4 Other Services Mail Printing File sharing FTP Web services Intranet Extranet Automating task with script services Domain Name Service (DNS) Dynamic Host Configuration Protocol (DHCP) Domains 6. Introduction to Network Operating System 6.1 Characteristics of a Network Operating System 6 IT Essentials II: Network Operating Systems v2.0 Copyright 2002, Cisco Systems, Inc.

7 Overview of NOS characteristics Differences between PC and NOS servers Multiuser, multitasking, and multiprocessor systems NOS server hardware Choosing an NOS Types of NOS 6.2 Windows NT/ Windows terminology Windows NT Windows 2000 operating systems Window s 2000 s family of operating systems 6.3 Linux History of Linux What is Unix? Linux operating system Linux clients 6.4 Determining Software Requirements for a Linux NOS Workstation software and programs Server software and programs Additional software and programs Verifying software compatibility 7. Overview of the Installation Process and Boot Process 7.1 Preparing for the Installation Installing NOS Planning the system Planning hardware installation Server hardware components Hardware requirements Creating a hardware inventory Identifying hardware using Device Manager Checking hardware compatibility lists Verifying the network Copyright 2002, Cisco Systems, Inc. IT Essentials II: Network Operating Systems v2.0 7

8 7.2 The Installation Process Installation media BIOS settings The Installation program Disk partitions Partitioning a disk Swap files Formatting the disk Creating initial administrative accounts Completing the installation 7.3 The Boot Process The steps of the boot process Basic files required BIOS Interaction Detailed steps of the boot process The Linux boot process 7.4 Troubleshooting NOS Installation Unable to boot from installation media Problems during the installation process Post-installation problems 8. Windows 2000 Professional 8.1 Installation Installing the OS Installation of OS add-in options 8.2 Administrator/User Interface Login procedures GUI Interface CLI Interface Windows explorer navigation 8.3 User Accounts Adding users Managing user accounts 8 IT Essentials II: Network Operating Systems v2.0 Copyright 2002, Cisco Systems, Inc.

9 8.4 Managing the File System Creating/sharing folders Creating groups Passwords and permissions 8.5 Services HTTP FTP Telnet server/client relationship Printing Scripts 9. Linux Installation Procedures 9.1 Pre -Installation Tasks Determining the appropriate installation method Selecting the appropriate parameters for installation Creating the Linux file system Selecting Packages to install 9.2 Installing and Configuring Linux Linux hardware requirements Starting the installation Configuring appropriate security Configuring network settings Other configurations and settings 9.3 X Server X Server selection and options Installing X server Configuring X server Hardware configurations Window Managers Desktop environments 9.4 Post-Installation Configuration and Tasks Post-installation of applications and programs Copyright 2002, Cisco Systems, Inc. IT Essentials II: Network Operating Systems v2.0 9

10 9.4.2 Installing and reconfiguring the boot loader Kernel issues Environment variables Verifying proper application functioning and performance 10. Linux Administration 10.1 Administrator/User Interface Login procedures GUI interface CLI interface The Linux shells VI Editor 10.2 User Accounts and Group Accounts User and group accounts in a Linux environment Adding users Managing user accounts Creating groups/adding users 10.3 Files System and Services Management Creating/sharing directories Passwords and permissions Mounting and managing files systems File system configuration files Managing runlevels Documenting a Linux system configuration 10.4 Daemons Introduction to Linux daemons Starting, stopping, and restarting daemons HTTP FTP Telnet Session Message Block (SMB) Protocol NFS Mail client Printing in a Linux environment Scripts 10 IT Essentials II: Network Operating Systems v2.0 Copyright 2002, Cisco Systems, Inc.

11 11. Advanced NOS Administration 11.1 Backups Overview of backup methods Installing backup software Backup hardware Backup strategies Automating backups 11.2 Drive Mapping What is drive mapping? Mapping drives in Windows networks Mapping drives in Linux networks Mapping drives in Novell networks 11.3 Partition and Processes Management Using fdisk, mkfs, and fsck Managing system processes with cron jobs Core dumps Critical and non-critical processes Assigning permissions for processes 11.4 Monitoring Server Resources Disk management Memory usage CPU usages Reviewing daily logs Checking resource usage in Windows Checking resource usage in Linux 11.5 Analyzing and Optimizing Network Performance Key concepts in analyzing and optimizing network performance Bottlenecks Baselines Determining Internet connection speed Networking monitoring software Network management software Copyright 2002, Cisco Systems, Inc. IT Essentials II: Network Operating Systems v2.0 11

12 Management software for small and medium-sized networks Management Service Provider (MSP) SNMP concepts and components SNMP structure and functions 12. Installing and Maintaining Hardware in a Linux Environment 12.1 Hardware Terms, Concepts, and Components Identifying the proper hardware to install Central processing unit (CPU) Video hardware Miscellaneous hardware and components Hardware monitoring devices 12.2 Hardware Installation, Configuration, and Maintenance Installing and locating hardware for Linux Configuring hardware in a Linux system Linux Kernel modules 12.3 Checking and Confirming Hardware Configuration Cabling IRQ, DMA, and I/O settings EIDE devices SCSI devices BIOS settings 12.4 Diagnosing and Troubleshooting Devices EIDE/ATA devices SCSI devices Peripheral devices Core system hardware 12.5 Laptop and Mobile Devices Installing Linux on a laptop Power management PC card devices 13. Troubleshooting the Operating System 12 IT Essentials II: Network Operating Systems v2.0 Copyright 2002, Cisco Systems, Inc.

13 13.1 Identifying and Locating Symptoms and Problems Determining if the problem is hardware, software, operating system, user related Using system utilities and system status tools Unresponsive Programs and Processes Examining log files Troubleshooting problems based on user feedback 13.2 LILO Boot Errors Error codes Booting a Linux system without LILO Emergency boot system Using an emergency boot disk in Linux 13.3 Recognizing Common Errors Package dependencies Backup and restore errors Application failure on Linux servers 13.4 Troubleshooting Network Problems Loss of connectivity Troubleshooting basics Using TCP/IP utilities Problem-solving guidelines Windows 2000 diagnostic tools Wake-On-LAN 13.5 Disaster Recovery Risk analysis Understanding redundancy Clustering Scalability High availability Hot swapping, warm swapping, and hot spares Creating a disaster recovory plan based on fault tolerance/recovery Testing the plan Hot and cold sites Copyright 2002, Cisco Systems, Inc. IT Essentials II: Network Operating Systems v2.0 13

14 14. Network Security 14.1 Developing a Network Security Policy Accessing security needs Acceptable use policy Username and password standards Rules for network access Policy for disposal of materials (data and hardware) Virus protection standards Online security resources Server room security Anti-theft devices for hardware Securing removable media 14.2 Threats to Network Security Overview: internal/external security Outside threats Denial of service (DoS) Distributed denial of services (DDoS) Well-known exploits Inside threats On-line security resources 14.3 Implementing Security Measures File encryption IP security Secure sockets layer (SSL) security Public/private key security 14.4 Patching the NOS Server Finding patches and upgrades Selecting patches and upgrades Applying patches and upgrades 14.5 Firewalls Introduction to firewalls Packet filtering Firewall placement Common firewall solutions 14 IT Essentials II: Network Operating Systems v2.0 Copyright 2002, Cisco Systems, Inc.

15 Using the NOS as a firewall Appendix 1: Quick Start Installation Guide for HP OpenView Network Node Manage Appendix 2: Managing Your Network with HP OpevnView Network Node Manager Copyright 2002, Cisco Systems, Inc. IT Essentials II: Network Operating Systems v2.0 15