net-speeder是一个由snooda.com博主写的Linux脚本程序，主要目的是为了解决丢包问题，实现TCP双倍发送，即同一份数据包发送两份。这样的话在服务器带宽充足情况下，丢包率会平方级降低。

1、net-speeder相关介绍
项目主页：https://code.google.com/p/net-speeder

https://github.com/snooda/net-speeder

net-speeder对于不加速就可以跑满带宽的类型来讲（多线程下载），开启后反而由于多出来的无效流量，导致速度减半，性能开销稍大和自由度有损失。所以，如果你的VPS连接国内速度一切正常，请不要启用net-speeder。

2、安装net-speeder
系统要求：CentOS 5/6 32or64bit

安装net-speeder的方法也很简单，这里提供由lazyzhu.com博主写的net-speeder一键安装包。执行以下命令：

wget --no-check-certificate https://gist.github.com/LazyZhu/dc3f2f84c336a08fd6a5/raw/d8aa4bcf955409e28a262ccf52921a65fe49da99/net_speeder_lazyinstall.sh
sh net_speeder_lazyinstall.sh

贴出源码，防止原链接挂掉

#!/bin/sh

# Set Linux PATH Environment Variables
PATH=/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin:~/bin
export PATH

# Check If You Are Root
if [ $(id -u) != "0" ]; then
    clear
    echo -e "\033[31m Error: You must be root to run this script! \033[0m"
    exit 1
fi

if [ $(arch) == x86_64 ]; then
    OSB=x86_64
elif [ $(arch) == i686 ]; then
    OSB=i386
else
    echo "\033[31m Error: Unable to Determine OS Bit. \033[0m"
    exit 1
fi
if egrep -q "5.*" /etc/issue; then
    OST=5
    wget http://dl.fedoraproject.org/pub/epel/5/${OSB}/epel-release-5-4.noarch.rpm
elif egrep -q "6.*" /etc/issue; then
    OST=6
    wget http://dl.fedoraproject.org/pub/epel/6/${OSB}/epel-release-6-8.noarch.rpm
else
    echo "\033[31m Error: Unable to Determine OS Version. \033[0m"
    exit 1
fi

rpm -Uvh epel-release*rpm
yum install -y libnet libnet-devel libpcap libpcap-devel gcc

wget http://net-speeder.googlecode.com/files/net_speeder-v0.1.tar.gz -O -|tar xz
cd net_speeder
if [ -f /proc/user_beancounters ] || [ -d /proc/bc ]; then
    sh build.sh -DCOOKED
    INTERFACE=venet0
else
    sh build.sh
    INTERFACE=eth0
fi

NS_PATH=/usr/local/net_speeder
mkdir -p $NS_PATH
cp -Rf net_speeder $NS_PATH

echo -e "\033[36m net_speeder installed. \033[0m"
echo -e "\033[36m Usage: nohup ${NS_PATH}/net_speeder $INTERFACE \"ip\" >/dev/null 2>&1 & \033[0m"

3、启用

安装完成后，会给出脚本用法，最简单的就是开启所有IP协议加速。执行以下命令：

nohup /usr/local/net_speeder/net_speeder venet0 "ip" >/dev/null 2>&1 &

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一键安装 net-speeder 神器

1.安装

wget –no-check-certificate https://raw.githubusercontent.com/x91270/Net_Speeder/master/netspeeder.sh

sh netspeeder.sh

2.启动

service netspeederd start

3.停止

service netspeederd stop

转载自小东博客 的《net-speeder网速优化器一键安装脚本 》

转载请注明：╮(╯▽╰)╭GT的个人博客 » [转]net-speeder网速优化器一键安装脚本