CentOS 7 离线拨号(PPPOE)
2017-12-01 18:50
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CentOS 7 离线拨号(PPPOE)
逛了一圈,就是没有找到离线拨号的教程,我就很好奇,如果电脑有网,那还要拨什么号。无奈下就自己想着下载好拨号工具再安装的方案,然后测试就成功了,故在这记录下安装过程,防以后再用到。教程使用的 CentOS 版本为 CentOS 7.4 mini,其它版本请自行做相应修改。
1.准备所有的安装包
由于我们要在没有网的CentOS里面安装拨号工具,所以要提前下载好安装包。拨号工具 打包(拨号工具及其依赖):
CentOS 7.4 版:http://download.csdn.net/download/kxwinxp/10141260
CentOS 6.9 版:http://download.csdn.net/download/kxwinxp/10141264
1.1)下载拨号工具及其依赖
打开 rpm 包下载网址:http://rpm.pbone.net设置高级搜索,选择 CentOS 7 的包
分别搜索如下包(自行选择对应版本),并下载下来
libpcap-1.5.3-9.el7.x86_64.rpm
ppp-2.4.5-33.el7.x86_64.rpm
net-tools-2.0-0.22.20131004git.el7.x86_64.rpm
rp-pppoe-3.11-7.el7.x86_64.rpm
自行把下载好的安装包拷贝到U盘!
2.挂载U盘,拷贝rpm安装包到CentOS
// 加载USB模块 modprobe usb-storage // 查看U盘设备 fdisk -l Device Boot Start End Blocks Id System /dev/sda1 * 2048 2099199 1048576 83 Linux /dev/sda2 2099200 41943039 19921920 8e Linux LVM /dev/sdb4 2048 14039 2015920 8e FAT32 // 这里假设U盘是sdb4 // 建立要挂载的目录 mkdir -p /mnt/usbdisk // 挂载U盘 mount /dev/sdb4 /mnt/usbdisk
// 卸载U盘 umount /mnt/usb
3.安装拨号工具及其依赖
// 进入安装包目录 cd /mnt/usbdisk/rp-pppoe // 安装 rpm -ivh libpcap-1.5.3-9.el7.x86_64.rpm ppp-2.4.5-33.el7.x86_64.rpm net-tools-2.0-0.22.20131004git.el7.x86_64.rpm rp-pppoe-3.11-7.el7.x86_64.rpm
4.配置pppoe拨号
// 查看当前以太网卡代号 ip address enp1s0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 ether 20:1b:06:3d:22:05 txqueuelen 1000 (Ethernet) lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536 inet 127.0.0.1 netmask 255.0.0.0 // 那么我这的以太网卡代号就是 enp1s0 (等下要用到) // 开始设置 pppoe-setup // 输入ISP提供的账户(拨号账号) Enter your Login Name (default root):sz20012231@163.gd // 输入以太网卡代号,根据刚刚查到的(enp1s0) (default eth0):enp1s0 // 配置:若长时间连线,连线会被自动中断(否 no) Enter the demand value (default no): no // 配置主DNS服务器(8.8.8.8) Enter the DNS information here:8.8.8.8 // 配置次DNS服务器(8.8.4.4) Enter the secondary DNS server address here:8.8.4.4 // 两次输入账户密码以确认(拨号密码) Please enter your Password: Please re-enter your Password: // 配置普通账户是否有网络连接权限(允许 yes) normal user to start or stop DSL connection (default yes):yes // 配置防火墙(无限制 0) Choose a type of firewall (0-2): 0 // 配置是否开机自动拨号连接(开启 yes) Please enter no or yes (default no):yes // 确认刚填写的配置信息(确认 y) Accept these settings and adjust configuration files (y/n)? y // 开启拨号网络 ifup ppp0
5.自动配置pppoe脚本
如果你觉得一步步输入确认很麻烦,那么,这个自动配置代码将很有用。// 请保存为ppp_auto.sh #!/bin/bash ppp_user=$1 password=$2 eth=$3 [ -z "$ppp_user" ]&&{ echo "没有指定拨号账号..." echo "示例: $0 user password ethx" exit 0 } [ -z "$password" ]&&{ echo "没有指定拨号密码..." echo "示例: $0 user password ethx" exit 0 } [ -z "$eth" ]&&{ echo "没有指定拨号网卡..." echo "示例: $0 user password ethx" exit 0 } echo "请等待,正在进行配置..." ppps=`ps -ef|grep ppp0|grep -v "grep"|wc -l` if [ $ppps -gt 0 ];then ifdown ppp0; fi if [ -d "/etc/sysconfig/network-scripts/ifcfg-ppp0" ];then echo "" > /etc/sysconfig/network-scripts/ifcfg-ppp0 else touch /etc/sysconfig/network-scripts/ifcfg-ppp0 fi echo "USERCTL=yes" >> /etc/sysconfig/network-scripts/ifcfg-ppp0 echo "BOOTPROTO=dialup" >> /etc/sysconfig/network-scripts/ifcfg-ppp0 echo "NAME=DSLppp0" >> /etc/sysconfig/network-scripts/ifcfg-ppp0 echo "DEVICE=ppp0" >> /etc/sysconfig/network-scripts/ifcfg-ppp0 echo "TYPE=xDSL" >> /etc/sysconfig/network-scripts/ifcfg-ppp0 echo "ONBOOT=yes" >> /etc/sysconfig/network-scripts/ifcfg-ppp0 echo "PIDFILE=/var/run/pppoe-adsl.pid" >> /etc/sysconfig/network-scripts/ifcfg-ppp0 echo "FIREWALL=NONE" >> /etc/sysconfig/network-scripts/ifcfg-ppp0 echo "PING=." >> /etc/sysconfig/network-scripts/ifcfg-ppp0 echo "PPPOE_TIMEOUT=80" >> /etc/sysconfig/network-scripts/ifcfg-ppp0 echo "LCP_FAILURE=3" >> /etc/sysconfig/network-scripts/ifcfg-ppp0 echo "LCP_INTERVAL=20" >> /etc/sysconfig/network-scripts/ifcfg-ppp0 echo "CLAMPMSS=1412" >> /etc/sysconfig/network-scripts/ifcfg-ppp0 echo "CONNECT_POLL=6" >> /etc/sysconfig/network-scripts/ifcfg-ppp0 echo "CONNECT_TIMEOUT=60" >> /etc/sysconfig/network-scripts/ifcfg-ppp0 echo "DEFROUTE=yes" >> /etc/sysconfig/network-scripts/ifcfg-ppp0 echo "SYNCHRONOUS=no" >> /etc/sysconfig/network-scripts/ifcfg-ppp0 echo "ETH=$eth" >> /etc/sysconfig/network-scripts/ifcfg-ppp0 echo "PROVIDER=DSLppp0" >> /etc/sysconfig/network-scripts/ifcfg-ppp0 echo "USER=$ppp_user" >> /etc/sysconfig/network-scripts/ifcfg-ppp0 echo "PEERDNS=no" >> /etc/sysconfig/network-scripts/ifcfg-ppp0 echo "DEMAND=no" >> /etc/sysconfig/network-scripts/ifcfg-ppp0 line1=`cat /etc/ppp/chap-secrets|grep "*"|wc -l` if [ $line1 -lt 1 ];then echo "\"$ppp_user\" * \"$password\"" > /etc/ppp/chap-secrets else user=`cat /etc/ppp/chap-secrets|grep "*"|awk '{print$1}'` passwd=`cat /etc/ppp/chap-secrets|grep "*"|awk '{print$3}'` sed -i "s/$user/\"$ppp_user\"/g" /etc/ppp/chap-secrets sed -i "s/$passwd/\"$password\"/g" /etc/ppp/chap-secrets fi line2=`cat /etc/ppp/pap-secrets|grep "*"|wc -l` if [ $line1 -lt 1 ];then echo "\"$ppp_user\" * \"$password\"" >> /etc/ppp/pap-secrets else user=`cat /etc/ppp/pap-secrets|grep "*"|awk '{print$1}'` passwd=`cat /etc/ppp/pap-secrets|grep "*"|awk '{print$3}'` sed -i "s/$user/\"$ppp_user\"/g" /etc/ppp/pap-secrets sed -i "s/$passwd/\"$password\"/g" /etc/ppp/pap-secrets fi ck=`cat /sbin/ifup|grep "routeok"|wc -l` if [ $ck -lt 1 ];then sed -i "s/exec \${OTHERSCRIPT} \${CONFIG} \$2//g" /sbin/ifup echo "#route" >> /sbin/ifup echo "{" >> /sbin/ifup echo "sleep 10" >> /sbin/ifup echo "route_ip=\`/sbin/pppoe-status|grep \"inet\"|awk '{print\$4}'|awk -F\/ '{print\$1}'\`" >> /sbin/ifup echo "len=\`echo \$route_ip|wc -c\`" >> /sbin/ifup echo "if [ \$len -gt 10 ];then" >> /sbin/ifup echo " route add default gw \$route_ip dev ppp0" >> /sbin/ifup echo "fi" >> /sbin/ifup echo "}&" >> /sbin/ifup echo "" >> /sbin/ifup echo "exec \${OTHERSCRIPT} \${CONFIG} \$2" >> /sbin/ifup echo "" >> /sbin/ifup echo "#routeok" >> /sbin/ifup fi ifup ppp0 if [ $? -eq 0 ];then echo "ifup ok" else echo "配置失败,请重新配置,比如重新选择网卡或者确认账号密码?" fi
执行:
./ppp_auto.sh sz20012231@163.gd 123456 enp1s0即可自动配置
第一个参数是账号,第二个是密码,第三个是以太网卡代号
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