Knowing how to troubleshoot network issues is a fundamental skill to all IT professionals. Usually in computers with Windows operating systems this task was delegated to CMD (Command Line), with commands like PING, TELNET or IPCONFIG.
Note: 90% of the network commands from CMD are compatible with Powershell.
Get-NetAdapter
Shows all the available network adapters and their MAC addresses
Get-NetAdapter | Where-Object {$_.Status -eq “up”}
Retrieves the adapters with active connection
Get-NetIPAddress
Equivalent of IPCONFIG but it will retrieve the IPv6 and IPv4 address families
Get-NetIPAddress | Where-Object {$_.PrefixOrigin -eq “dhcp”} | Select-Object -Property IPAddress, InterFaceAlias
To know which interfaces have DHCP
Get-NetIPAddress | select InterfaceAlias,IPAddress,AddressFamily,PrefixOrigin |Where-Object {$_.AddressFamily -eq ‘IPv4’}
Command will filter IPv4
Test-NetConnection “URL”
Equivalent to PING
Test-NetConnection “URL” -Traceroute
Equivalent to TRACEROUTE
Resolve-DnsName -Name “URL”
Gets the IP
Get-NetTCPConnection
Displays the IPs and Ports and their state
