Hi Folks, I’ve been using this script to check HDX ports for Citrix but pretty much can be used in any situation you want to check a remote port on a server either TCP or UDP.<\/p>\n
\n\n\nfunction Check-Port{ \n<# \n.SYNOPSIS \n Tests port on a remote server. \n \n.PARAMETER UDPTimeOut \n Sets a timeout for UDP port query. (In milliseconds, Default is 1000) \n \n.PARAMETER TCPTimeOut \n Sets a timeout for TCP port query. (In milliseconds, Default is 1000)\n \n.NOTES \n Name: Check-Port.ps1 \n Author: Michael \n DateCreated: 18Aug2015 \n \n.EXAMPLE \n Check-Port -computer 'server' -port 80 \n \n \n.EXAMPLE \n 'server' | Check-Port -port 80 \n \n \n.EXAMPLE \n Check-Port -computer @("server1","server2") -port 80 \n \n \n.EXAMPLE\n Check-Port -comp dc1 -port 17 -udp -UDPtimeout 10000\n \n.EXAMPLE \n @("server1","server2") | Check-Port -port 80 \n \n \n.EXAMPLE \n (Get-Content hosts.txt) | Check-Port -port 80 \n \n \n.EXAMPLE \n Check-Port -computer (Get-Content hosts.txt) -port 80 \n \n \n.EXAMPLE \n Check-Port -computer (Get-Content hosts.txt) -port @(1..64400) \n Checks a range of ports from 1-64400 on all servers in the hosts.txt file \n \n#> \n[cmdletbinding( \n DefaultParameterSetName = '', \n ConfirmImpact = 'low' \n)] \n Param( \n [Parameter( \n Mandatory = $True, \n Position = 0, \n ParameterSetName = '', \n ValueFromPipeline = $True)] \n [array]$computer, \n [Parameter( \n Position = 1, \n Mandatory = $True, \n ParameterSetName = '')] \n [array]$port, \n [Parameter( \n Mandatory = $False, \n ParameterSetName = '')] \n [int]$TCPtimeout=1000, \n [Parameter( \n Mandatory = $False, \n ParameterSetName = '')] \n [int]$UDPtimeout=1000, \n [Parameter( \n Mandatory = $False, \n ParameterSetName = '')] \n [switch]$TCP, \n [Parameter( \n Mandatory = $False, \n ParameterSetName = '')] \n [switch]$UDP \n ) \n Begin { \n If (!$tcp -AND !$udp) {$tcp = $True} \n #Typically you never do this, but in this case I felt it was for the benefit of the function \n #as any errors will be noted in the output of the report \n $ErrorActionPreference = "SilentlyContinue" \n $report = @() \n } \n Process { \n ForEach ($c in $computer) { \n ForEach ($p in $port) { \n If ($tcp) { \n #Create temporary holder \n $temp = @"\n<style>\nTABLE {border-width: 1px;border-style: solid;border-color: black;border-collapse: collapse;}\nTH {border-width: 1px;padding: 3px;border-style: solid;border-color: black;background-color: #6495ED;}\nTD {border-width: 1px;padding: 3px;border-style: solid;border-color: black;}\n.odd { background-color:#ffffff; }\n.even { background-color:#dddddd; }\n<\/style>\n<title>\nCitrix server Port Test\n<\/title>\n\n"@ | Select Server, Port, TypePort, Open, Notes \n\n\n\n #Create object for connecting to port on computer \n $tcpobject = new-Object system.Net.Sockets.TcpClient \n #Connect to remote machine's port \n $connect = $tcpobject.BeginConnect($c,$p,$null,$null) \n #Configure a timeout before quitting \n $wait = $connect.AsyncWaitHandle.WaitOne($TCPtimeout,$false) \n #If timeout \n If(!$wait) { \n #Close connection \n $tcpobject.Close() \n Write-Verbose "Connection Timeout" \n #Build report \n $temp.Server = $c \n $temp.Port = $p \n $temp.TypePort = "TCP" \n $temp.Open = "False" \n $temp.Notes = "Connection to Port Timed Out" \n } Else { \n $error.Clear() \n $tcpobject.EndConnect($connect) | out-Null \n #If error \n If($error[0]){ \n #Begin making error more readable in report \n [string]$string = ($error[0].exception).message \n $message = (($string.split(":")[1]).replace('"',"")).TrimStart() \n $failed = $true \n } \n #Close connection \n $tcpobject.Close() \n #If unable to query port to due failure \n If($failed){ \n #Build report \n $temp.Server = $c \n $temp.Port = $p \n $temp.TypePort = "TCP" \n $temp.Open = "False" \n $temp.Notes = "$message" \n } Else{ \n #Build report \n $temp.Server = $c \n $temp.Port = $p \n $temp.TypePort = "TCP" \n $temp.Open = "True" \n $temp.Notes = "" \n } \n } \n #Reset failed value \n $failed = $Null \n #Merge temp array with report \n $report += $temp \n } \n If ($udp) { \n #Create temporary holder \n $temp = "" | Select Server, Port, TypePort, Open, Notes \n #Create object for connecting to port on computer \n $udpobject = new-Object system.Net.Sockets.Udpclient\n #Set a timeout on receiving message \n $udpobject.client.ReceiveTimeout = $UDPTimeout \n #Connect to remote machine's port \n Write-Verbose "Making UDP connection to remote server" \n $udpobject.Connect("$c",$p) \n #Sends a message to the host to which you have connected. \n Write-Verbose "Sending message to remote host" \n $a = new-object system.text.asciiencoding \n $byte = $a.GetBytes("$(Get-Date)") \n [void]$udpobject.Send($byte,$byte.length) \n #IPEndPoint object will allow us to read datagrams sent from any source. \n Write-Verbose "Creating remote endpoint" \n $remoteendpoint = New-Object system.net.ipendpoint([system.net.ipaddress]::Any,0) \n Try { \n #Blocks until a message returns on this socket from a remote host. \n Write-Verbose "Waiting for message return" \n $receivebytes = $udpobject.Receive([ref]$remoteendpoint) \n [string]$returndata = $a.GetString($receivebytes)\n If ($returndata) {\n Write-Verbose "Connection Successful" \n #Build report \n $temp.Server = $c \n $temp.Port = $p \n $temp.TypePort = "UDP" \n $temp.Open = "True" \n $temp.Notes = $returndata \n $udpobject.close() \n } \n } Catch { \n If ($Error[0].ToString() -match "\\bRespond after a period of time\\b") { \n #Close connection \n $udpobject.Close() \n #Make sure that the host is online and not a false positive that it is open \n If (Test-Connection -comp $c -count 1 -quiet) { \n Write-Verbose "Connection Open" \n #Build report \n $temp.Server = $c \n $temp.Port = $p \n $temp.TypePort = "UDP" \n $temp.Open = "True" \n $temp.Notes = "" \n } Else { \n <# \n It is possible that the host is not online or that the host is online, \n but ICMP is blocked by a firewall and this port is actually open. \n #> \n Write-Verbose "Host maybe unavailable" \n #Build report \n $temp.Server = $c \n $temp.Port = $p \n $temp.TypePort = "UDP" \n $temp.Open = "False" \n $temp.Notes = "Unable to verify if port is open or if host is unavailable." \n } \n } ElseIf ($Error[0].ToString() -match "forcibly closed by the remote host" ) { \n #Close connection \n $udpobject.Close() \n Write-Verbose "Connection Timeout" \n #Build report \n $temp.Server = $c \n $temp.Port = $p \n $temp.TypePort = "UDP" \n $temp.Open = "False" \n $temp.Notes = "Connection to Port Timed Out" \n } Else { \n $udpobject.close() \n } \n } \n #Merge temp array with report \n $report += $temp \n } \n } \n } \n } \n End { \n #Generate Report \n $report \n }\n}\n\nCheck-Port -computer localhost -port @("1494","2598")\n\n<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"Hi Folks, I’ve been using this script to check HDX ports for Citrix but pretty much can be used in any situation you want to check a remote port on a server either TCP or UDP. function Check-Port{ <# .SYNOPSIS Tests port on a remote server. .PARAMETER UDPTimeOut Sets a […]<\/p>\n","protected":false},"author":1,"featured_media":148,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[1],"tags":[8,12,6,11,7],"class_list":["post-165","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","tag-michael-goulart","tag-microsoft","tag-powershell","tag-script","tag-windows-updates"],"jetpack_featured_media_url":"http:\/\/brgeek.com.br\/wordpress\/wp-content\/uploads\/2017\/09\/powershell-tips-and-tricks_w_640.png","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"http:\/\/brgeek.com.br\/wordpress\/wp-json\/wp\/v2\/posts\/165","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/brgeek.com.br\/wordpress\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/brgeek.com.br\/wordpress\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/brgeek.com.br\/wordpress\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/brgeek.com.br\/wordpress\/wp-json\/wp\/v2\/comments?post=165"}],"version-history":[{"count":1,"href":"http:\/\/brgeek.com.br\/wordpress\/wp-json\/wp\/v2\/posts\/165\/revisions"}],"predecessor-version":[{"id":166,"href":"http:\/\/brgeek.com.br\/wordpress\/wp-json\/wp\/v2\/posts\/165\/revisions\/166"}],"wp:featuredmedia":[{"embeddable":true,"href":"http:\/\/brgeek.com.br\/wordpress\/wp-json\/wp\/v2\/media\/148"}],"wp:attachment":[{"href":"http:\/\/brgeek.com.br\/wordpress\/wp-json\/wp\/v2\/media?parent=165"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/brgeek.com.br\/wordpress\/wp-json\/wp\/v2\/categories?post=165"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/brgeek.com.br\/wordpress\/wp-json\/wp\/v2\/tags?post=165"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}