Powershell

Powershell

Useful Commands

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Test if port open from one server to another

Test-NetConnection 10.10.10.10 -port 445

Example output:

ComputerName           : 10.10.10.10
RemoteAddress          : 10.10.10.10
RemotePort             : 445
InterfaceAlias         : Ethernet
SourceAddress          : 10.10.10.20
PingSucceeded          : True
PingReplyDetails (RTT) : 29 ms
TcpTestSucceeded       : True

Check who rebooted the server

Get-EventLog –Log System –Newest 100 | Where-Object {$_.EventID –eq ‘1074’} | FT MachineName, UserName, TimeGenerated -AutoSize

Example output:

MachineName          UserName           TimeGenerated
-----------          --------           -------------
server01.lab.local LABLOCAL\user01 28/8/2018 4:28:20 PM

Show DNS Cache

Get-DnsClientCache