CentOS 或是 RedHat 系的Linux, ADSL或pppoe 的撥號設定

我們使用CentOS 或是 RedHat 系的Linux的時候,  雖然說, 在圖形介面 (我們稱之為X Window System) 就可以設定 ADSL或pppoe 的撥號設定, 但是, 我們也可以打開終端機, 直接設定撥號連線

在命令列輸入 “adsl-setup” 開始設定(↙代表”Enter”鍵)

[root@test ~]# adsl-setup

LOGIN NAME

Enter your Login Name (default root): xxxxxxxx@hinet.net        (adsl的撥接名稱, 視你是用哪家寬頻業者, 這裡用Hinet的表示方式)

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): ↙                                                                    (連adsl數據機的網路介面名稱)

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): ↙                                    (閒置多久斷線,no為永遠連線)

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.

Enter the DNS information here: 168.95.1.1                               (Hinet的DNS)

Please enter the IP address of your ISP’s secondary DNS server.

If you just press enter, I will assume there is only one DNS server.

Enter the secondary DNS server address here: 168.95.192.1      (Hinet的DNS)

PASSWORD

Please enter your Password: xxxxxxxx                                     (adsl的撥接密碼)

Please re-enter your Password: xxxxxxxx                                 (adsl的撥接密碼)

USERCTRL

Please enter ‘yes’ (three letters, lower-case.) if you want to allow

normal user to start or stop DSL connection (default yes): yes     (是否讓一般使用者撥接上網)

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): 0                                                (0為不開啟防火牆)

Start this connection at boot time

Do you want to start this connection at boot time?

Please enter no or yes (default no): yes                                      (開機時是否連線)

** Summary of what you entered **

Ethernet Interface: eth0

User name:          xxxxxxxx@hinet.net

Activate-on-demand: No

Primary DNS:        168.95.1.1

Secondary DNS:      8.8.8.8

Firewalling:        NONE

User Control:       yes

Accept these settings and adjust configuration files (y/n)? y          (輸入資料是否正確)

Adjusting /etc/sysconfig/network-scripts/ifcfg-ppp0

Adjusting /etc/resolv.conf

Adjusting /etc/ppp/chap-secrets and /etc/ppp/pap-secrets

(But first backing it up to /etc/ppp/chap-secrets.bak)

(But first backing it up to /etc/ppp/pap-secrets.bak)

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.

[root@test ~]#

6. 在命令列輸入 “adsl-start” 即可撥接上網

 

這樣設定就可以直接上網了