Linux 監控網路流量

iptraf
 
nethogs

# nethogs eth0

iftop

$ iftop -b -P -n -i eth0

ifstat (顯示介面速率)

$ ifstat -i eth0 -n -q 1 1| awk 'NR>2 {print "D:" $1 "k/U:" $2 "k"}'

or

$ ifstat -i eth0 -n | awk 'NR>2 {print "D:" $1 "k/U:" $2 "k"; fflush()}'

Reference :
How to Monitor Network Traffic in Linux | Techthrob.com