📄 00000015.htm
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字元(return)然後再次找寻签入提示.当接收到提示时,送出使用者名称(存放在$ACC <BR>OUNT 环境变量里,在前面的ppp-on中定义)。 <BR> <BR> assword: $PASSWORD <BR> <BR> 期待密码提示并且送出密码(存放在环境变量里)。 <BR> <BR> 关于pppd程序,如果你想要作拨号的话,内容就是这些了;这里面最需要理解的是ch <BR>at程序,在上面的缺省脚本中,它使用的是login:和password:提示。你的ISP会使用什 <BR>么样的指令对?这个很难说,解决问题的唯一方法是手工拨号到对方的服务器上面,然 <BR>后看一看对方到底使用的什么样的配置,完成这个任务的最好方式是使用一个终端仿真 <BR>程序,比如Windows 9x的超级终端或者Linux的Minicom。 <BR> <BR> 让我们来解释一下minicom。假设你的系统已经安装了这个产品,你首先需要建立/de <BR>v/modem设备。在我们的一般情况下,系统中已经有了/dev/cua0,/dev/cua1,/dev/cu <BR>a2或者/dev/ttyS0,/dev/ttyS1等设备,你只需要将调制解调器连接到正确的端口上, <BR>然后建立符号连接就可以了,/dev/ttyS0和/dev/cua0都是COM1,/dev/ttyS1和/dev/cu <BR>a1是COM2,以此类推。假设你的调制解调器接在COM2上,那么首先将/dev/modem连接到 <BR>/dev/cua1: <BR> <BR> ln –s /dev/cua1 /dev/modem <BR> <BR> 然后启动minicom: <BR> <BR> $ minicom <BR> <BR> Welcome to minicom 1.82 <BR> <BR> <BR> OPTIONS: History Buffer, F-key Macros, Search History Buffer, I18n <BR> <BR> Compiled on Sep 23 1999, 22:29:11. <BR> <BR> <BR> Press CTRL-A Z for help on special keys <BR> <BR> <BR> <BR> AT S7=45 S0=0 L1 V1 X4 &c1 E1 Q0 <BR> <BR> OK <BR> <BR> 出现这样的提示就可以拨号了,输入拨号命令: <BR> <BR> at <BR> <BR> OK <BR> <BR> atdt 163 <BR> <BR> CONNECT 33600/V42BIS <BR> <BR> *** Welcome To AnShan 163 Arc03 *** <BR> <BR> login: test <BR> <BR> Password: <BR> <BR> 容易看到,在CONNECT连接符号之后,对方的拨号服务程序要送出一个Welcome To An <BR>Shan 163 Arc03的字符串,所以我们要在对应的chat脚本里面加上对应的行-虽然这个行 <BR>根本不需要应答。我们首先把scripts目录里面的ppp-on,ppp-on-dialer和ppp-off,o <BR>ptions文件复制到/etc/ppp,然后将/etc/ppp-on里面的TELEPHONE,ACCOUNT,PASSWOR <BR>D都设置成你自己的内容,REMOTE_IP和LOCAL_IP设置为0.0.0.0: <BR> <BR> #!/bin/sh <BR> <BR> TELEPHONE=163 # The telephone number for the connection <BR> <BR> ACCOUNT=lnte # The account name for logon (as in 'George Burns') <BR> <BR> PASSWORD= lnte # The password for this account (and 'Gracie Allen') <BR> <BR> LOCAL_IP=0.0.0.0 # Local IP address if known. Dynamic = 0.0.0.0 <BR> <BR> REMOTE_IP=0.0.0.0 # Remote IP address if desired. Normally 0.0.0.0 <BR> <BR> NETMASK=255.255.255.0 # The proper netmask if needed <BR> <BR> export TELEPHONE ACCOUNT PASSWORD <BR> <BR> DIALER_SCRIPT=/etc/ppp/ppp-on-dialer <BR> <BR> exec /usr/sbin/pppd debug lock modem crtscts /dev/ttyS0 38400 \ <BR> <BR> asyncmap 20A0000 escape FF kdebug 0 $LOCAL_IP:$REMOTE_IP \ <BR> <BR> noipdefault netmask $NETMASK defaultroute connect $DIALER_SCRIPT <BR> <BR> 然后设置ppp-on-dialer进行应答: <BR> <BR> #!/bin/sh <BR> <BR> exec chat -v \ <BR> <BR> TIMEOUT 3 \ <BR> <BR> ABORT '\nBUSY\r' \ <BR> <BR> ABORT '\nNO ANSWER\r' \ <BR> <BR> ABORT '\nRINGING\r\n\r\nRINGING\r' \ <BR> <BR> '' \rAT \ <BR> <BR> 'OK-+++\c-OK' ATH0 \ <BR> <BR> TIMEOUT 30 \ <BR> <BR> OK ATDT$TELEPHONE \ <BR> <BR> CONNECT '' \ <BR> <BR> Arc '' \ <BR> <BR> ogin:--ogin: $ACCOUNT \ <BR> <BR> assword: $PASSWORD <BR> <BR> 注意我们用的是Arc而不是Arc03,因为我们面对的是一个多道连选的拨号服务器,拨 <BR>163会随机地拨到服务器的某一个modem上,而每个的提示都是ArcXX,所以我们提取相同 <BR>的信息,就是Arc。 <BR> <BR> 最后是/etc/ppp/options,这个文件只有一行: <BR> <BR> [root@wxd ppp]# cat options <BR> <BR> lock <BR> <BR> ppp-off文件可以保持原状: <BR> <BR> !/bin/sh <BR> <BR> ###################################################################### <BR> <BR># <BR> <BR> # Determine the device to be terminated. <BR> <BR># <BR> <BR> if [ "$1" = "" ]; then <BR> <BR> DEVICE=ppp0 <BR> <BR> else <BR> <BR> DEVICE=$1 <BR> <BR> fi <BR> <BR> <BR> ###################################################################### <BR> <BR># <BR> <BR> # If the ppp0 pid file is present then the program is running. Stop it. <BR> <BR> if [ -r /var/run/$DEVICE.pid ]; then <BR> <BR> kill -INT `cat /var/run/$DEVICE.pid` <BR> <BR># <BR> <BR> # If the kill did not work then there is no process running for this <BR> <BR> # pid. It may also mean that the lock file will be left. You may wish <BR> <BR> # to delete the lock file at the same time. <BR> <BR> if [ ! "$?" = "0" ]; then <BR> <BR> rm -f /var/run/$DEVICE.pid <BR> <BR> echo "ERROR: Removed stale pid file" <BR> <BR> exit 1 <BR> <BR> fi <BR> <BR># <BR> <BR> # Success. Let pppd clean up its own junk. <BR> <BR>
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