CentOS客户端安装方法

由于笔者不用CentOS，所以仅仅抄录官方文档在此

IMPORTANT
This directory contains stable builds (SVN code) of 64 bit binary packages for RedHat/CentOS (latest OS version). Please use rpm-stable.ntop.org for stable builds.
In order to use this repository do (as root):

cd /etc/yum.repos.d/
wget http://packages.ntop.org/centos-stable/ntop.repo -O ntop.repo

CentOS 6

rpm -ivh https://dl.fedoraproject.org/pub/epel/epel-release-latest-6.noarch.rpm
wget https://copr.fedoraproject.org/coprs/saltstack/zeromq4/repo/epel-6/saltstack-zeromq4-epel-6.repo
rpm -ivh http://packages.ntop.org/rpm6/extra/hiredis-0.10.1-3.el6.x86_64.rpm http://packages.ntop.org/rpm6/extra/hiredis-devel-0.10.1-3.el6.x86_64.rpm

CentOS 7

rpm -ivh https://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm
#then do:
yum erase zeromq3
#(Do this once to make sure zeromq3 is not installed)
yum clean all
yum update
yum install n2n