初学者求助网络方面实验

lxqX

初学LINUX，最近学网络服务配置部分，自己家是歌华有线上网。在自己本本一台机器上做DNS，WEB等实验时不知用歌华分配的IP还是本地环回地址，其中/etc/resolv.conf文件中会自动生成歌华的好象两个DNS服务器IP，基本上所做实验都以失败告终。还有哪些网络服务需要关注以下
/etc/hosts、/etc/resolv.conf、/etc/sysconfig/network文件。这些文件有什么区别，谢谢！

零二年的夏天

Windows下也有hosts文件，与此相同。比如，你写

1. 
   
2. 127.0.0.1    hello.com
   

复制代码

然后就可以ping下看了。

resolv.conf

RESOLV.CONF(5)                                                  RESOLV.CONF(5)

NAME
       resolv.conf - resolver configuration file

SYNOPSIS
       /etc/resolv.conf

DESCRIPTION
       The  resolver is a set of routines in the C library that provide access
       to the Internet Domain Name System (DNS).  The  resolver  configuration
       file  contains  information  that  is read by the resolver routines the
       first time they are invoked by a process.  The file is designed  to  be
       human readable and contains a list of keywords with values that provide
       various types of resolver information.

       On a normally configured system this file should not be necessary.  The
       only name server to be queried will be on the local machine; the domain
       name is determined from the host name and the  domain  search  path  is
       constructed from the domain name.

network文件用来设定你的网络接口信息，比如是否使用dhcp，gateway是谁等等。

briangao

/etc/hosts contains machine hostname and IP address mapping
/etc/sysconfig/network contains your system level network setting such as hostname and default gateway
/etc/resolv.conf file contains your DNS server IP addresses
/etc/nsswitch.conf file determine whether your machine is going to use DNS or not
/etc/sysconfig/network-scripts/ifcfg-eth0 contains your network card setting such as IP address and netmask etc.