Diff for /wikisrc/guide/net-intro.mdwn between versions 1.1 and 1.2

version 1.1, 2013/03/11 20:54:42 version 1.2, 2013/03/11 20:58:27
Line 13  as introduced in the first two sections. Line 13  as introduced in the first two sections.
 The reader is assumed to know about basic system administration tasks: how to  The reader is assumed to know about basic system administration tasks: how to
 become root, edit files, change permissions, stop processes, etc. See the other  become root, edit files, change permissions, stop processes, etc. See the other
 chapters of this NetBSD guide and  chapters of this NetBSD guide and
 e.g.\[[[AeleenFrisch|guide/index#bibliography]]\]  e.g.[[\[AeleenFrisch\]|guide/index#bibliography]]
 for further information on this topic. Besides that, you should know how to  for further information on this topic. Besides that, you should know how to
 handle the utilities we're going to set up here, i.e. you should know how to  handle the utilities we're going to set up here, i.e. you should know how to
 use telnet, FTP, ... I will not explain the basic features of those  use telnet, FTP, ... I will not explain the basic features of those
Line 22  or of course the other parts of this doc Line 22  or of course the other parts of this doc
   
 This introduction to TCP/IP Networking was written with the intention in mind to  This introduction to TCP/IP Networking was written with the intention in mind to
 give starters a basic knowledge. If you really want to know what it's all about,  give starters a basic knowledge. If you really want to know what it's all about,
 read \[[[CraigHunt|guide/index#bibliography]]\]. This book does not only cover  read [[\[CraigHunt\]|guide/index#bibliography]]. This book does not only cover
 the basics, but goes on and explains all the concepts, services and how to set  the basics, but goes on and explains all the concepts, services and how to set
 them up in detail. It's great, I love it! :-)  them up in detail. It's great, I love it! :-)
   
Line 250  After talking so much about netmasks, ne Line 250  After talking so much about netmasks, ne
 have to admit that this is not the whole truth.  have to admit that this is not the whole truth.
   
 Imagine the situation at your university, which usually has a class B (/16)  Imagine the situation at your university, which usually has a class B (/16)
 address, allowing it to have up to 2^16 \~= 65534 hosts on that net. Maybe it  address, allowing it to have up to 2^16 ~= 65534 hosts on that net. Maybe it
 would be a nice thing to have all those hosts on one single network, but it's  would be a nice thing to have all those hosts on one single network, but it's
 simply not possible due to limitations in the transport media commonly used  simply not possible due to limitations in the transport media commonly used
 today.  today.
Line 406  The three different ways to translate ho Line 406  The three different ways to translate ho
 `/etc/hosts`, the Domain Name Service (DNS) and the Network Information Service  `/etc/hosts`, the Domain Name Service (DNS) and the Network Information Service
 (NIS).  (NIS).
   
 ### `/etc/hosts`  ### /etc/hosts
   
 The first and simplest way to translate hostnames into IP-addresses is by using  The first and simplest way to translate hostnames into IP-addresses is by using
 a table telling which IP address belongs to which hostname(s). This table is  a table telling which IP address belongs to which hostname(s). This table is
Line 619  example: Line 619  example:
   
     127.0.0.1      127.0.0.1
   
 This allows a theoretical number of 2^32 or \~4 billion hosts to be connected on  This allows a theoretical number of 2^32 or ~4 billion hosts to be connected on
 the internet today. Due to grouping, not all addresses are available today.  the internet today. Due to grouping, not all addresses are available today.
   
 IPv6 addresses use 128 bit, which results in 2^128 theoretically addressable  IPv6 addresses use 128 bit, which results in 2^128 theoretically addressable
Line 684  With 128 bits available for addressing i Line 684  With 128 bits available for addressing i
 same, only the fields are wider. Providers usually assign /48 networks, which  same, only the fields are wider. Providers usually assign /48 networks, which
 leaves 16 bits for a subnetting and 64 hostbits.  leaves 16 bits for a subnetting and 64 hostbits.
   
 ![IPv6-addresses have a similar structure to class B addresses](/guide/images/ipv6-en-6adrformats.gif)  ![IPv6-addresses have a similar structure to class B addresses](/guide/images/ipv6-en-6adrformats.gif)  
 **IPv6-addresses have a similar structure to class B addresses**  **IPv6-addresses have a similar structure to class B addresses**
   
 Now while the space for network and subnets here is pretty much ok, using 64  Now while the space for network and subnets here is pretty much ok, using 64

Removed from v.1.1  
changed lines
  Added in v.1.2


CVSweb for NetBSD wikisrc <wikimaster@NetBSD.org> software: FreeBSD-CVSweb