iftop -n -P -N -i eth0 # 显示eth0上的网卡流量，-n 不解析主机名 -P 显示端口号，-N 显示端口号，不显示service name
-h Print a summary of usage. -n Don't do hostname lookups. -N Do not resolve port number to service names -p Run in promiscuous mode, so that traffic which does not pass directly through the specified interface is also counted. -P Turn on port display. -l Display and count datagrams addressed to or from link-local IPv6 addresses. The default is not to display that address category. -b Don't display bar graphs of traffic. -m limit Set the upper limit for the bandwidth scale. Specified as a number with a 'K', 'M' or 'G' suffix. -B Display bandwidth rates in bytes/sec rather than bits/sec. -i interface Listen to packets on interface. -f filter code Use filter code to select the packets to count. Only IP packets are ever counted, so the specified code is evaluated as (filter code) and ip. -F net/mask Specifies an IPv4 network for traffic analysis. If specified, iftop will only include packets flowing in to or out of the given network, and packet direction is determined relative to the network boundary, rather than to the interface. You may specify mask as a dotted quad, such as /255.255.255.0, or as a single number speci- fying the number of bits set in the netmask, such as /24. -G net6/mask6 Specifies an IPv6 network for traffic analysis. The value of mask6 can be given as a prefix length or as a numerical address string for more compound bitmasking. -c config file Specifies an alternate config file. If not specified, iftop will use ~/.iftoprc if it exists. See below for a description of config files -t text output mode Use text interface without ncurses and print the output to STDOUT.
nload eth0 nload -m # multi interface
nload [-a period] [-i max_scaling] [-m] [-o max_scaling] [-t interval] [-u h|H|b|B|k|K|m|M|g|G] [-U h|H|b|B|k|K|m|M|g|G] [devices] -a period Sets the length in seconds of the time window for average calculation. The default is 300. -i max_scaling Specifies the 100% mark in kBit/s of the graph indicating the incoming bandwidth usage. Ignored if max_scaling is 0 or the switch -m is given. The default value for max_scaling is 10240. -m Show multiple devices at a time; do not show the traffic graphs. -o max_scaling Same as -i but for the graph indicating the outgoing bandwidth usage. -t interval Determines the refresh interval of the display in milliseconds. The default value of interval is 500. PLEASE NOTE: Specifying refresh intervals shorter than about 100 milliseconds makes traf- fic calculation very unprecise. Also the display may flicker using such short refresh intervals. nload tries to balance this out by doing extra time measurements, but this may not always succeed. -u h|H|b|B|k|K|m|M|g|G Sets the type of unit used for the display of traffic numbers. h means human readable (auto), b Bit/s, k kBit/s, m MBit/s and g GBit/s. The upper case letters mean the corre- sponding units in Bytes (instead of Bits). The default is k. -U h|H|b|B|k|K|m|M|g|G Same as -u, but for an amount of data, e.g. Bit, kByte, GBit etc. (without "/s"). The default is M. devices Network devices to use. The default is "all", which means to display all auto-detected devices. -h, --help Show a short summary of these command line options.
root 用户运行。 可按照进程使用网络流量进行分类和排序。
nethogs -s eth0 # 对于网卡eth0上的流量显示，sort by send bytes
nethogs [-h] [-V] [-d] [-v] [-t] [-c] [-p] [-s] [device(s)] Options -h display available commands usage. -V prints Version info. -d delay for refresh rate. -v select view mode -p sniff in promiscious mode (not recommended). -t tracemode. -c limit number of refreshes -s sort by traffic sent device(s) to monitor. By default eth0 is being used. INTERACTIVE CONTROL m cycle between display modes (kb/s, kb, b, mb) r sort by 'received' s sort by 'sent' q quit