private/Network.ps1
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<#
function Test-DNS { param([string]$Destination, [string]$Port) $Socket = New-Object Net.Sockets.TcpClient $IAsyncResult = [IAsyncResult] $Socket.BeginConnect($Destination, $Port, $null, $null) $success = $IAsyncResult.AsyncWaitHandle.WaitOne(500, $true) ## Adjust the port test time-out in milli-seconds, here is 500ms Return $Socket.Connected $Socket.close() } #> # Autorun with config file function Set-Network { Param( [Parameter(Mandatory = $true)] [ValidateNotNullOrEmpty()] [string]$IPAddress, [Parameter(Mandatory = $true)] [ValidateNotNullOrEmpty()] [string]$PrefixLength, [Parameter(Mandatory = $true)] [ValidateNotNullOrEmpty()] [string]$DefaultGateway, [Parameter(Mandatory = $true)] [ValidateNotNullOrEmpty()] [array]$Dns ) $NetworkCards = Get-NetAdapter | Where-Object "MediaConnectionState" -Match "Connected" | Select-Object * foreach ($Card in $NetworkCards) { $Ip = Get-NetIPAddress -InterfaceAlias $Card.InterfaceAlias | Where-Object "AddressFamily" -Match "IPv4" | Select-Object * Write-Host "Card Index:" $Card.InterfaceIndex " -- Card Name: " $Card.InterfaceAlias " -- with ip: " $Ip.IPAddress } if (!($InterfaceIndex = Read-Host "which card do you want to set ? (Card Index or press enter to return)")) { return } if (!($IPAddress) -or !($PrefixLength) -or !($DefaultGateway) -or !($Dns)) { return } New-NetIPAddress -InterfaceIndex $InterfaceIndex -IPAddress $IPAddress -PrefixLength $PrefixLength -DefaultGateway $DefaultGateway Set-DnsClientServerAddress -InterfaceIndex $InterfaceIndex -ServerAddress $Dns } <# ################ Test TCP Port 53 of DNS Servers ################# if (Test-DNS $Dns1 '53') { Write-Host -Fore Green "Connection to DNS Server $Dns1 is OK." $Dns1_OK = 1; } else { Write-Host "Connection to DNS Server $Dns1 is NOT OK." $Dns1_OK = 0; } if (Test-DNS $Dns2 '53') { Write-Host -Fore Green "Connection to DNS Server $Dns2 is OK." $Dns2_OK = 1; } else { Write-Host "Connection to DNS Server $Dns2 is NOT OK." $Dns2_OK = 0; } If ((!$Dns1_OK) -AND (!$Dns2_OK)) { Write-Host -Fore Red "Cannot connect to both DNS Server.`nPlease contact your network administrator. Now exists."; Exit; } ############# Swap the primary & secondary DNS Settings if the secondary DNS Server is connected where primary is not ####### If (!$Dns1_OK -AND $Dns2_OK) { $TempDNS = $Dns1 $Dns1 = $Dns2 $Dns2 = $TempDNS } ############# Check DNS Settings for each Network Adapter and Prompt the user to correct if not correct ############ $Netinfo = Get-WmiObject Win32_NetworkAdapterConfiguration -filter "ipenabled=true" $Netinfo | foreach { If (!$_.DNSServerSearchOrder) { Write-Host -Fore Yellow "Client DNS Settings are empty for $($_.Description) Adapter." $Correct_DNS_Settings = Read-Host "Do you want to correct Client DNS Settings(y/n)?" while ($Correct_DNS_Settings -ne 'y' -AND $Correct_DNS_Settings -ne 'n') { Write-Host "Please only type 'y' or 'n'." $Correct_DNS_Settings = Read-Host "Do you want to correct Client DNS Settings(y/n)?" } If ($Correct_DNS_Settings -eq 'y') { $DNS_Change_Result = $_.SetDNSServerSearchOrder($(If ($Dns1 -AND $Dns2) { $Dns1, $Dns2 } elseif ($Dns1) { $Dns1 } else { $Dns2 })) If (!$DNS_Change_Result.ReturnValue) { Write-Host -Fore Cyan "DNS Setting of $($_.Description) has been changed to $Dns1 $(if($Dns2){"and $Dns2"})" } else { Write-Host -Fore Red "Cannot change DNS Setting for $($_.Description). Please make sure you have necessary permission or Run Powershell as Administrator. Now exit." Exit; } } } elseif ( $Dns1 -contains $_.DNSServerSearchOrder[0] -AND $Dns2 -contains $_.DNSServerSearchOrder[1] ) { Write-Host "Client DNS Settings of $($_.Description) is correct." } else { Write-Host -Fore Red "Client DNS Settings of $($_.Description) is not correct." $Correct_DNS_Settings = Read-Host "Do you want to correct Client DNS Settings(y/n)?" while ($Correct_DNS_Settings -ne 'y' -AND $Correct_DNS_Settings -ne 'n') { Write-Host "Please only type 'y' or 'n'." $Correct_DNS_Settings = Read-Host "Do you want to correct Client DNS Settings(y/n)?" } If ($Correct_DNS_Settings -eq 'y') { $DNS_Change_Result = $_.SetDNSServerSearchOrder($($Dns1, $Dns2)) If (!$DNS_Change_Result.ReturnValue) { Write-Host -Fore Cyan "DNS Setting of $($_.Description) has been changed to $Dns1 $(if($Dns2){"and $Dns2"})" } else { Write-Host -Fore Red "Cannot change DNS Setting for $($_.Description). Please make sure you have necessary permission or Run Powershell as Administrator. Now exit." Exit; } } } } #> |