手册：MIPS/网络/动态管理

MIPS Handbook
安装
关于安装
选择安装媒介
配置网络
准备磁盘
安装stage3
安装基本系统
配置Linux内核
配置系统
安装系统工具
配置系统引导程序Bootloader
收尾安装工作
使用Gentoo
Portage介绍
USE标记
Portage功能特性
初始化脚本（Initscript）系统
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使用Portage
文件和目录
变量
混合使用不同的软件分支
额外的工具
定制Portage树
高级特性
网络配置
入门
高级配置
模块化网络
无线
添加功能
动态管理

Network management

With laptops, systems can be always on the move. As a result, the system may not always have an Ethernet cable or plugged in or an access point available. Also, the user may want networking to automatically work when an Ethernet cable is plugged in or an access point is found.

In this chapter, we cover how this can be done.

Note
This document only talks about ifplugd, but there are alternatives such as netplug. netplug is a lightweight alternative to ifplugd, but it relies on the kernel network drivers working correctly, and many drivers do not.

ifplugd

ifplugd is a daemon that starts and stops interfaces when an Ethernet cable is inserted or removed. It can also manage detecting association to Access Points or when new ones come in range.

root #emerge --ask sys-apps/ifplugd

Configuration for ifplugd is fairly straightforward too. The configuration is held in /etc/conf.d/net. Run man ifplugd for details on the available variables. Also, see /usr/share/doc/netifrc-*/net.example.bz2 for more examples.

FILE /etc/conf.d/netSample ifplug configuration

# Replace eth0 with the interface to be monitored
ifplugd_eth0="..."
  
# To monitor a wireless interface
ifplugd_eth0="--api-mode=wlan"

In addition to managing multiple network connections, users may want to add a tool that makes it easy to work with multiple DNS servers and configurations. This is very handy when the system receives its IP address via DHCP.

root #emerge --ask net-dns/openresolv

See man resolvconf to learn more about its features.

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