#!/bin/bash
# auto connect vpn . get internal network connection [inˈ tər nl in tor no 内部]
ip=10.1.1.1
#ip=10.1.1.9
VPNfile=/datadisk/eisc/vpn/home/homeserver1.ovpn
sudo chmod 777 $VPNfile
debList=(
openvpn
)
download_deb(){
for i in ${
debList[*]}
do
debname=`echo $i | awk -F"_" '{print $1}'`
debnameInstalled=`sudo dpkg -l | grep -w "$debname" | awk -F" " '{print $2}' `
debnameInstalledLength=${
#debnameInstalled}
if [ $debnameInstalledLength -gt 1 ]
then
echo "[ok] 该包 $i 已经安装,安装信息: $debnameInstalled"
else
echo "[runing] 正在检查是否下载安装包: $i"
if [ ! -e $i ]
then
echo "[runing] 当前没有下载,正在下载包:$i"
case "$i" in
"openvpn") sudo apt-get install openvpn ;;
*) echo "该包没有定义下载地址,包: $i"
esac
else
echo "[ok] 已经安装: $i "
fi
fi
done
}
connect()
{
echo "正在检测拨号上网状态..... "
ping -c1 -W1 $ip | grep from
if [ $? != 0 ]
then
failFlag=1
echo "[fail] Connection failed. i=$i failCount=$failCount failFlag=$failFlag"
else
failFlag=0
failCount=0 # 网络连接上一次为通畅,重新开始计数
FailMaxCount=0;
failFlag=0
FailMaxFlag=0
echo "[ok] connection is successful. i=$i failCount=$failCount failFlag=$failFlag"
sleep 1
fi
# 将ping -c 2 ping 两次; -i 每次间隔; -w 总共等待时间; vpn 连接上后需要等待一些时间
# $? 是上一个程序执行是否成功的标志,如果执行成功则$? 为0,否则 不为0
if [ "$failCount" -gt "5" ]
then
FailMaxFlag=1
i=0;
failCount=0; # 大于 5 重置次数,重新计数
echo "[reset] i=0; failCount=0; failFlag=0 ; outValue i=$i failCount=$failCount failFlag=$failFlag FailMaxFlag=$FailMaxFlag "
sleep 1;
else
FailMaxFlag=0;
fi
if [ "$FailMaxCount" -gt "1" ] # 5次错误的倍数 0 1 两次,
then
sudo killall openvpn ; sudo openvpn $VPNfile > /dev/null &
failFlag=0;
echo "Network reconnection... "
sleep 12 # openvpn 连接需要时间,连接成功后再进行检测网络通讯
fi
}
failCount=0
FailMaxCount=0;
failFlag=0
FailMaxFlag=0
i=0;
# 初始化变量
main()
{
#download_deb
for((;;))
do
connect
((i++))
echo "当前尝试次数 : $i 状态: $status"
if [ "$failFlag" = "1" ]
then
((failCount++))
fi
if [ "$FailMaxFlag" = "1" ]
then
((FailMaxCount++))
fi
if [ $i > 999 ]
then
i=0;
fi
done
}
main
# 小绿叶技术博客一键下载: wget eisc.cn/file/ubuntu/shell/server/openvpn_connect.sh