Commonly used network troubleshooting commands in Windows

Operation of common commands and parameters of ping, ipconfig, route, arp, tracert, netstat, telnet

ping command

Application scenarios: Used to solve connection, accessibility and name resolution problems.

Usage: ping domain name/IP address [parameter] (eg: ping www.baidu.com -n 1 -l 1000)

            -l send buffer size

            -a Resolve addresses to hostnames.

            -n Number of echo requests to send.

            -t Ping the specified host until stopped.

ipconfig command

Application Scenario: Display all current TCP/IP network configuration values ​​and refresh Dynamic Host Configuration Protocol (DHCP) and Domain Name System (DNS) settings

Usage: ipconfig [parameters] (ipconfig displays all current network configurations)

           ipconfig /all displays all network configurations

           ipconfig -release   releases DHCP information.

           ipconfig -renew     re-obtain address through DHCP

           ipconfig /displaydns View DNS cache

           ipconfig /flushdns    clears the DNS cache

route command

Application scenario: display and modify the input in the local IP routing table

Usage: route command parameter (route add 172.16.10.1 mask 255.255.255.255 192.168.1.1)

           route add target network MASK subnet mask gateway IP --add route   

           route delete target network -- delete route

           route  -p add destination network MASK subnet mask   gateway IP

arp command

Use case: Display and modify entries in the Address Resolution Protocol ( ARP ) cache.

Usage: arp parameter

           arp -a displays current ARP entries by asking for current protocol data

           arp -d deletes the host specified by inet_addr.

           arp -s IP MAC Add a host and associate the Internet address inet_addr with the physical address eth_addr

tracert command

Application Scenario: Display a list of near / side router interfaces for routers in the path between the source host and the destination

Usage: tracert parameter IP/domain name (such as tracert -d www.baidu.com path to Baidu server)

           tracert -d IP/domain name Do not resolve addresses to hostnames.

netstat command

Application scenario: Display active TCP connections

Usage: netstat [parameter] (such as netstat -a displays the current arp entry)

           -a display the current arp entry

           -d Deletes the host specified by inet_addr.

           

telnet command

Application scenario: remote login to a server

Usage: telnet domain name port

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Origin blog.csdn.net/qq_50929489/article/details/128779560