配置网卡 拨号需要将拨号的网卡设置为动态获取ip。而动态获取ip在机器启动的时候，将会花费很长时间去获取ip。所以，我们最好将网卡设置不启动时不激活。 设置网卡，使用命令netconfig可以方面的配置网络相关信息。当然，也可以通过修改网卡的配置文件实现： [root@www root]# vim /etc/sysconfig/network-scripts/ifcfg-eth0
配置拨号软件 安装了拨号软件，接下来，就进行设置，告诉pppoe怎么拨号。启动设置，通过下面这个命令： [root@www root]# adsl-setup 首先，你会看到欢迎信息。 Welcome to the ADSL client setup. First, I will run some checks on your system to make sure the PPPoE client is installed properly... 然后要求我们输入登陆名。 LOGIN NAME Enter your Login Name (default root): 接着，要求我们选择使用的网络接口。我们这时候，填入我们刚刚设置的那个网卡。对于大多数只有一个网卡的朋友而言，默认eth0就可以了。 INTERFACE
Enter the Ethernet interface connected to the ADSL modem For Solaris, this is likely to be something like /dev/hme0. For Linux, it will be ethX, where ''''X'''' is a number. (default eth0):
接下来，询问的是，adsl连接以后，是否持续保持连接。或者是自动的断开，在指定的时间（以秒数计算）内。多数情况下，我们希望手动的打开关闭连接。所以这里选择默认的no。 Do you want the link to come up on demand, or stay up continuously? If you want it to come up on demand, enter the idle time in seconds after which the link should be dropped. If you want the link to stay up permanently, enter ''''no'''' (two letters, lower-case.) NOTE: Demand-activated links do not interact well with dynamic IP addresses. You may have some problems with demand-activated links. Enter the demand value (default no): 再下来，就是dns了。我发现很多时候，pppoe都不能够正确获取dns信息。我建议你输入dns地址。这些信息在isp的网站上一般都有公布。 DNS
Please enter the IP address of your ISP''''s primary DNS server. If your ISP claims that ''''the server will provide dynamic DNS addresses'''', enter ''''server'''' (all lower-case) here. If you just press enter, I will assume you know what you are doing and not modify your DNS setup. 帐号密码是必须，输入两次。密码显示风格和其他的地方一样，不显示在屏幕上。这个，我不知道改怎么填写。太高深的问题了。希望你将你的答案和我分享。：P。 PASSWORD
Please enter your Password: Please re-enter your Password: 下面的设置，是表示是否允许普通用户启用/关闭 ADSL连接。默认是允许。 Please enter ''''yes'''' (two letters, lower-case.) if you want to allow normal user to start or stop DSL connection (default yes): 我们看下防火墙选项。这里提供的防火墙可以给你提供基本的安全保护。我不推荐你使用——你最好选择“NONE”选项。无论是什么样的用户使用，我都建议你使用额外的工具来配置防火墙规则（iptables目前看来是一个非常不错的工具）。 FIREWALLING
Please choose the firewall rules to use. Note that these rules are very basic. You are strongly encouraged to use a more sophisticated firewall setup; however, these will provide basic security. If you are running any servers on your machine, you must choose ''''NONE'''' and set up firewalling yourself. Otherwise, the firewall rules will deny access to all standard servers like Web, e-mail, ftp, etc. If you are using SSH, the rules will block outgoing SSH connections which allocate a privileged source port.
The firewall choices are: 0 - NONE: This script will not set any firewall rules. You are responsible for ensuring the security of your machine. You are STRONGLY recommended to use some kind of firewall rules. 1 - STANDALONE: Appropriate for a basic stand-alone web-surfing workstation 2 - MASQUERADE: Appropriate for a machine acting as an Internet gateway for a LAN Choose a type of firewall (0-2): Start this connection at boot time 是否在开机时，打开这个连接？ Do you want to start this connection at boot time?** 所有的配置信息填写完成之后，系统将给出一个报告，完整的显示出你输入的配置信息。如果，你确信你输入的配置信息是正确的，输入yes写入配置文件。输入no放弃配置。 Summary of what you entered **
Ethernet Interface: eth0 User name: root Activate-on-demand: No DNS: Do not adjust Firewalling: NONE User Control: yes Accept these settings and adjust configuration files (y/n)?
Please enter no or yes (default no):
Congratulations, it should be all set up!
Type ''''/sbin/ifup ppp0'''' to bring up your xDSL link and ''''/sbin/ifdown ppp0'''' to bring it down. Type ''''/sbin/ADSL-status /etc/sysconfig/network-scripts/ifcfg-ppp0'''' to see the link status.
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