command to check network traffic in linux

This article introduced Linux to see the network card traffic six methods, Linux system using Nload, Iftop, Iostat and other tools to view the network card traffic, here we first to explain the next Iptraf method, the need for a friend reference. The real-time traffic of th

which ip address occupies network traffic. This is what ifstat cannot do. However, the traffic display unit of iftop is Mb. The B is bit, bit, not byte, And the KB of ifstat. The B is byte, And the byte is eight times the bit. Beginners are easily misled. Enter the iftop command After entering the iftop screen, some

Iftop is mainly used to show the local network traffic and the flow of communication between each other, such as the size of the flow between the individual and that machine, is very suitable for proxy server and iptables server use to view network status can use Netstat, nmap and other tools. To view real-time network

There are a lot of SAR command parameters and there's time for man. The-n parameter is useful, he has 6 different switches: DEV | Edev | NFS | NFSD | Sock | All. DEV Displays network interface information, Edev displays statistics about network errors, NFS client Information for NFS statistics activities, NFSD statistics Server for NFS, sock displays socket infor

First, download the websiteWww.ex-parrot.com/pdw/iftop/download/iftop-0.17.tar.gzSecond, iftop related parametersCommon parameters-I set the monitoring network card, such as: # Iftop-i eth1-B displays traffic in bytes (default is bits), such as: # Iftop-b-N Causes the host information to display IP directly by default, such as: # Iftop-n-N causes port information to be displayed by default directly, such as

determine whether an abnormal connection exists. If yes, we need to disconnect the network for further processing. 　　2. View service running status Generally, the functions of a computer correspond to the services they provide. Therefore, many intruders will open various services after entering the computer. It can be seen that it is necessary to detect the services currently running in the system. Enter "net start" in the

First, in the Start menu in the Command box to enter cmd This command, as shown: Second, will return to the DOS environment, we can enter the ping command to detect. 1, we first to detect the intranet is the speed of connectivity, if the intranet other machine IP is 192.168.1.10, we can ping 192.168.1.102-t,-t is always ping, as shown in the figure:

100baseT/half 100baset/Full 1000baseT/half 1000baset/Full advertised pause frame use:symmetric advertised Auto-negotiation:yes link Partner advertised link Modes:100baset/Full 1000baseT/Full Link partner advertised pause frame Use:transmit-Only Link partner advertised Auto-Negotiation:yes SPEED:1000MB/s Duplex:full port:twisted Pair Phyad:1transceiver:internal Auto-Negotiation:on MDI-x:on Supports Wake-on:g Wake-on:d Current message level:0x000000ff(255) DRV probe link timer ifdown ifup rx_err