Doug Lowe - Networking All-in-One For Dummies

816 839

817 840

818 841

819 842

820 843

821 844

822 845

823 847

824 848

825 849

826 850

827 851

828 852

829 853

830 854

831 855

832 856

833 857

834 858

835 859

836 860

837 861

838 862

839 863

840 864

841 865

842 866

843 867

844 868

845 869

846 870

847 871

848 872

849 873

850 874

851 875

852 876

853 877

854 878

855 879

856 880

857 881

858 882

859 883

860 884

861 885

862 886

863 887

864 889

865 890

866 891

867 892

868 893

869 894

870 895

871 896

872 897

873 898

874 899

875 901

876 902

877 903

878 904

879 905

880 906

881 907

882 908

883 909

884 910

885 911

886 912

887 913

888 914

889 915

890 916

891 917

892 918

893 919

894 920

895 921

896 922

897 923

898 924

899 925

900 926

901 927

902 928

903 929

904 930

905 931

906 932

907 933

908 935

909 936

910 937

911 938

912 939

913 940

914 941

915 942

916 943

917 944

918 945

919 946

920 947

921 948

922 949

923 950

924 951

925 953

926 954

927 955

928 956

929 957

930 958

931 959

932 960

933 961

934 962

935 963

936 964

937 965

938 966

939 967

940 968

941 969

942 970

943 971

944 972

945 973

946 974

947 975

948 976

949 977

950 978

951 979

952 980

953 981

954 982

955 983

956 984

957 985

958 986

959 987

960 988

961 989

962 990

963 991

964 992

965 993

966 994

967 995

968 996

969 997

970 998

971 999

972 1000

973 1001

974 1002

975 1003

976 1004

977 1005

978 1006

979 1007

980 1008

981 1009

982 1010

983 1011

984 1012

985 1013

986 1014

987 1015

988 1016

989 1017

990 1018

991 1019

992 1020

993 1021

994 1022

995 1023

996 1025

997 1026

998 1027

Welcome to the eighth edition of Networking All-in-One For Dummies, the one networking book that’s designed to replace an entire shelf full of the dull and tedious networking books you’d otherwise have to buy. This book contains all the basic and not-so-basic information you need to know to get a network up and running and to stay on top of the network as it grows, develops problems, and encounters trouble.

If you’re just getting started as a network administrator, this book is ideal. As a network administrator, you have to know about a lot of different topics: installing and configuring network hardware and software, planning a network, working with TCP/IP, securing your network, working with mobile devices, virtualizing your servers, backing up your data, managing cloud services, and many others.

You can, and probably eventually will, buy separate books on each of these topics. It won’t take long before your bookshelf is bulging with 10,000 or more pages of detailed information about every imaginable nuance of networking. But before you’re ready to tackle each of those topics in depth, you need to get a bird’s-eye picture. This book is the ideal way to do that.

And if you already own 10,000 pages or more of network information, you may be overwhelmed by the amount of detail and wonder, “Do I really need to read 1,000 pages about BIND to set up a simple DNS server?” or “Do I really need a 6-pound book to show me how to install Linux?” Truth is, most 1,000-page networking books have about 100 or so pages of really useful information — the kind you use every day — and about 900 pages of excruciating details that apply mostly to networks at places like NASA and the CIA.

The basic idea of this book is that I’ve tried to wring out the 100 or so most useful pages of information on nine different networking topics: network basics, building a network, network administration and security, troubleshooting and disaster planning, working with TCP/IP, home networking, wireless networking, Windows server operating systems, and Linux.

So whether you’ve just been put in charge of your first network or you’re a seasoned pro, you’ve found the right book.

Networking All-in-One For Dummies, 8th Edition, is intended to be a reference for all the great things (and maybe a few not-so-great things) that you may need to know when you’re setting up and managing a network. You can, of course, buy a huge 1,000-page book on each of the networking topics covered in this book. But then, who would you get to carry them home from the bookstore for you? And where would you find the shelf space to store them? In this book, you get the information you need all conveniently packaged for you in between one set of covers.

This book doesn’t pretend to be a comprehensive reference for every detail of these topics. Instead, this book shows you how to get up and running fast so that you have more time to do the things you really want to do. Designed using the easy-to-follow For Dummies format, this book helps you get the information you need without laboring to find it.

Networking All-in-One For Dummies, 8th Edition, is a big book made up of several smaller books — minibooks, if you will. Each of these minibooks covers the basics of one key element of network management, such as setting up network hardware, installing a network operating system, or troubleshooting network problems. Whenever one big thing is made up of several smaller things, confusion is always a possibility. That’s why Networking All-in-One For Dummies, 8th Edition, is designed to have multiple access points (I hear an acronym coming on — MAP!) to help you find what you want. At the beginning of the book is a detailed table of contents that covers the entire book. Then each minibook begins with a table of contents that shows you at a glance what chapters are included in that minibook. Useful running heads appear at the top of each page to point out the topic discussed on that page. And handy thumb tabs run down the side of the pages to help you find each minibook quickly. Finally, a comprehensive index lets you find information anywhere in the entire book.

This isn’t the kind of book you pick up and read from start to finish, as though it were a cheap novel. (If I ever see you reading it at the beach, I’ll kick sand in your face.) This book is more like a reference — the kind of book you can pick up, turn to just about any page, and start reading. You don’t have to memorize anything in this book. It’s a need-to-know book: You pick it up when you need to know something. Need to know how to set up a DHCP server in Windows? Pick up the book. Need to know how to create a user account in Linux? Pick up the book. Otherwise, put it down, and get on with your life.

Within this book, you may note that some web addresses break across two lines of text. If you’re reading this book in print and want to visit one of these web pages, simply key in the web address exactly as it’s noted in the text, pretending as though the line break doesn’t exist. If you’re reading this as an e-book, you’ve got it easy — just click the web address to be taken directly to the web page.