CentOS下安装nc命令

在运行dubbo的demo程序时，发现控制台报错，提示为：

Starting the demo-provider ....bin/start.sh: line 72: nc: command not found
.bin/start.sh: line 72: nc: command not found

应该是nc命令没有安装导致的，最简单的办法

yum install nc.x86_64

但是由于测试环境没有配置yum源，于是就只能用rpm包安装了

# Removes the old package
yum erase nc

# Manually downloads the working package from the Official Repository
wget http://vault.centos.org/6.6/os/x86_64/Packages/nc-1.84-22.el6.x86_64.rpm

# Installs the package
rpm -iUv nc-1.84-22.el6.x86_64.rpm

如果你的机器是32位的（正常来说很少有32位机器）

wget http://vault.centos.org/6.6/os/i386/Packages/nc-1.84-22.el6.i686.rpm