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Some windows network commands
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win-network-commands.md

#Windos Network Commands

###nslookup The nslookup tool can help you to verify that DNS name resolution is working correctly. When you run nslookup against a host name, the tool will show you how the name was resolved, as well as which DNS server was used during the lookup. This tool can be extremely helpful when troubleshooting problems related to legacy DNS records that still exist but that are no longer correct. To use this tool, just enter the nslookup command, followed by the name of the host you want to resolve. For example:

nslookup tsdata.ts24

###netstat -an The netstat command is particularly useful, displaying all sorts of network statistics when used with its various options. One of the most interesting variants of netstat is netstat -an, which will display a list of all open network connections on their computer, along with the port they’re using and the foreign IP address they’re connected to.

netstat -an

###ping Type ping google.com and Windows will send packets to Google.com. Google will respond and let you know it’s received them. You’ll be able to see if any packets didn’t make it to Google.com — perhaps you’re experiencing packet loss — and how long it took you to hear back — perhaps the network is saturated and packets are taking a while to reach their destinations.

ping google.com

###tracert Traces the route it takes for a packet to reach a destination. For example, run tracert google.com and you’ll see the path your packet takes to reach Google. If you’re having issues connecting to a website, tracert can show you where the problem is occurring.

tracert google.com

###ipconfig The ipconfig command is used to view or modify a computer's IP addresses. For example, if you wanted to view a Windows 7 system's full IP configuration, you could use the following command:

ipconfig /all

Assuming that the system has acquired its IP address from a DHCP server, you can use the ipconfig command to release and then renew the IP address. Doing so involves using the following commands:

ipconfig /release

ipconfig /renew

Another handy thing you can do with ipconfig is flush the DNS resolver cache. This can be helpful when a system is resolving DNS addresses incorrectly. You can flush the DNS cache by using this command:

ipconfig /flushdns

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