Part IV. Networking and related issues

Table of Contents

23. Introduction to TCP/IP Networking

23.1. Audience

23.2. Supported Networking Protocols

23.3. Supported Media

23.3.1. Serial Line

23.3.2. Ethernet

23.4. TCP/IP Address Format

23.5. Subnetting and Routing

23.6. Name Service Concepts

23.6.1. /etc/hosts

23.6.2. Domain Name Service (DNS)

23.6.3. Network Information Service (NIS/YP)

23.6.4. Other

23.7. Next generation Internet protocol - IPv6

23.7.1. The Future of the Internet

23.7.2. What good is IPv6?

23.7.3. Changes to IPv4

24. Setting up TCP/IP on NetBSD in practice

24.1. A walk through the kernel configuration

24.2. Overview of the network configuration files

24.3. Connecting to the Internet with a modem

24.3.1. Getting the connection information

24.3.2. resolv.conf and nsswitch.conf

24.3.3. Creating the directories for pppd

24.3.4. Connection script and chat file

24.3.5. Authentication

24.3.6. pppd options

24.3.7. Testing the modem

24.3.8. Activating the link

24.3.9. Using a script for connection and disconnection

24.3.10. Running commands after dialin

24.4. Creating a small home network

24.5. Setting up an Internet gateway with IPNAT

24.5.1. Configuring the gateway/firewall

24.5.2. Configuring the clients

24.5.3. Some useful commands

24.6. Setting up a network bridge device

24.6.1. Bridge example

24.7. A common LAN setup

24.8. Connecting two PCs through a serial line

24.8.1. Connecting NetBSD with BSD or Linux

24.8.2. Connecting NetBSD and Windows NT

24.8.3. Connecting NetBSD and Windows 95

24.9. IPv6 Connectivity & Transition via 6to4

24.9.1. Getting 6to4 IPv6 up & running

24.9.2. Obtaining IPv6 Address Space for 6to4

24.9.3. How to get connected

24.9.4. Security Considerations

24.9.5. Data Needed for 6to4 Setup

24.9.6. Kernel Preparation

24.9.7. 6to4 Setup

24.9.8. Quickstart using pkgsrc/net/hf6to4

24.9.9. Known 6to4 Relay Routers

24.9.10. Tunneling 6to4 through an IPFilter firewall

24.9.11. Conclusion & Further Reading

25. The Internet Super Server inetd

25.1. Overview

25.2. What is inetd?

25.3. Configuring inetd - /etc/inetd.conf

25.4. Services - /etc/services

25.5. Protocols - /etc/protocols

25.6. Remote Procedure Calls (RPC) - /etc/rpc

25.7. Allowing and denying hosts - /etc/hosts.{allow,deny}

25.8. Adding a Service

25.9. When to use or not to use inetd

25.10. Other Resources

26. The Domain Name System

26.1. DNS Background and Concepts

26.1.1. Naming Services

26.1.2. The DNS namespace

26.1.3. Resource Records

26.1.4. Delegation

26.1.5. Delegation to multiple servers

26.1.6. Secondaries, Caching, and the SOA record

26.1.7. Name Resolution

26.1.8. Reverse Resolution

26.2. The DNS Files

26.2.1. /etc/named.conf

26.2.2. /etc/namedb/localhost

26.2.3. /etc/namedb/zone.127.0.0

26.2.4. /etc/namedb/diverge.org

26.2.5. /etc/namedb/1.168.192

26.2.6. /etc/namedb/root.cache

26.3. Using DNS

26.4. Setting up a caching only name server

26.4.1. Testing the server

27. Mail and news

27.1. postfix

27.1.1. Configuration of generic mapping

27.1.2. Testing the configuration

27.1.3. Using an alternative MTA

27.2. fetchmail

27.3. Reading and writing mail with mutt

27.4. Strategy for receiving mail

27.5. Strategy for sending mail

27.6. Advanced mail tools

27.7. News with tin

28. Introduction to the Common Address Redundancy Protocol (CARP)

28.1. CARP Operation

28.2. Configuring CARP

28.3. Enabling CARP Support

28.4. CARP Example

28.5. Advanced CARP configuration

28.6. Forcing Failover of the Master

29. Network services

29.1. The Network File System (NFS)

29.1.1. NFS setup example

29.1.2. Setting up NFS automounting for /net with amd(8)

29.2. The Network Time Protocol (NTP)