Ping, traceroute, netstat, ping, telnet network Tools

Ping :P ing is a command under Windows, UNIX, and Linux systems. Ping also belongs to a communication protocol and is part of the TCP/IP protocol. The ping command allows you to check if the network is connected and helps us to analyze and determine network failures. Application format: Ping space IP address. The command can also be used with many parameters, in particular, type ping to press ENTER to see detailed instructions.

PING (Packet Internet Groper), Internet Packet Explorer, a program for testing network connection volumes. Ping sends an ICMP (Internet control Messages Protocol) that is an Internet datagram control protocol, an ECHO request message to the destination and reports whether the desired Icmpecho (ICMP echo response) is received. It is a command to check whether the network is unobstructed or the speed of the network connection. As an administrator or hacker living on the network, the ping command is the first DOS command that must be mastered, and the principle is that it uses the uniqueness of the IP address of the machine on the network, sending a packet to the destination IP address, Ask the other party to return a packet of the same size to determine whether two network machines are connected, how much delay. Ping refers to end-to-end connectivity, which is often used as a check for usability, but some virus Trojans force a large number of remote ping commands to preempt your network resources, causing the system to slow down and slow down. Ping intrusion is strictly forbidden as a basic function of most firewalls to provide users with a choice. In general, if you do not use as a server or network testing, you can safely select it to protect your computer.

The ping command is used to test the connectivity of the network between hosts. The ping command uses the ICMP transport protocol to send out a request for information, if the remote host network function is not a problem, it will be back to the information, and therefore learned that the host is functioning properly.

Grammar

Ping (options) (parameters)

Options

-D: Use the socket's So_debug function;-c< the number of times to complete;: Set the number of responses required to complete;-F: Limit detection;-i< interval seconds;: Specify the interval between sending and receiving Messages;-i< network interface > : Send packet;-l< using the specified network interface;: Sets the data packets that are sent out before the requested information is sent;-N: Outputs only the numeric;-p< template style;: Sets the template style to fill the packet;-Q: Does not show the instruction execution process, Except for the relevant information at the beginning and end;-R: Ignores the normal routing Table and sends the packet directly to the remote host;-r: Records the routing process;-s< packet size;: Sets the size of the packet;-t< survival value;: Sets the size of the Live value TTL ;-V: Shows the execution of instructions in detail.

Parameters

Destination Host: Specifies the destination host for sending ICMP packets.

Example

time=177 ms64 bytes from 100-42-212-8.static.webnx.com (100.42.212.8): icmp_seq=2 ttl=50 time=178 ms64 bytes from 100-42-2 12-8.static.webnx.com (100.42.212.8): icmp_seq=3 ttl=50 time=174 ms64 bytes from 100-42-212-8.static.webnx.com ( 100.42.212.8): icmp_seq=4 ttl=50 time=177 ms ... Press CTRL + C to end---host.1.linuxde.net ping statistics---4 packets transmitted, 4 received, 0% packet loss, time 2998msrtt min/a Vg/max/mdev = 174.068/176.916/178.182/1.683 ms

Ping, traceroute, netstat, ping, telnet network Tools