Useful commands for SysAdmins

Posted by SysAdmin Tools on


Get the serial number or service tag of a device

wmic bios get serialnumber

    Show the logged in user on a remote device.

    wmic /node:"workstation-name" computersystem get username

      Show the PID associated with a listening port or show the listening port number associated with a PID

      netstat -ano | find "portnumber"
      netstat -ano | find "pid"

        Find the session ID for a Remote Desktop User and log them off

        query user | find "username"
        logoff <ID of session>

        Quickly find .exe files in the C:\Users directory where RansomWare often hides.

        dir C:\Users /B /S /A | find ".exe"

        Disable sleep and shutdown

        reg ADD HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer /v NoClose /t REG_DWORD /d 1 /f
        powercfg /setactive "Always On"
        powercfg.exe -change -standby-timeout-ac 0

        Enable sleep and shutdown

        reg DELETE HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer /v NoClose
        powercfg /setactive "Portable/Laptop"
        powercfg.exe -change -standby-timeout-ac 2

        Get the HyperV Host name that a VM is running on

        reg query "HKLM\Software\Microsoft\Virtual Machine\Guest\Parameters"

        Create a local admin user from the command line

        net user AdminUser1 P@$$w0rd!@# /ADD
        net localgroup Administrators AdminUser1 /ADD

        Allow an incoming port through windows firewall

        Create the rule

        netsh advfirewall firewall add rule name="TCP Port 6624" dir=in action=allow protocol=TCP localport=6624

        To delete the rule.

        netsh advfirewall firewall delete rule name="TCP Port 6624" protocol=TCP localport=6624.

        Find a share and path on a large file server

        net share | find "sharename" 

        Quickly install Telnet Client

        dism /online /Enable-Feature /FeatureName:TelnetClient

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