①nethogs（查程序）

#Debian/Ubuntu：
apt-get install build-essential libncurses5-dev libpcap-dev
#Yum-based distro's：
yum install gcc-c++ libpcap-devel.x86_64 libpcap.x86_64 "ncurses*"

git clone https://github.com/raboof/nethogs
make
./src/nethogs #试运行
sudo make install
hash -r
sudo nethogs

②iftop（查ip）

#CentOS
安装好EPEL，直接yum install iftop
#Debian/Ubuntu：
apt-get install iftop