Question

Write a script for windows command line which will scan the ports for protocols: FTP, SSH, SMTP, HTTP, for the first 10 hosts in the network 192.168.1.0/24

Answer 1

Solution:

#Select port range
$portrange = 20,21,22,25,80

foreach ($r in $range) {

$ip="{0}.{1}" -F $net,$r
write-host $ip

#Open connection for each port from the range
Foreach ($p in $portrange) {

$Socket = New-Object System.Net.Sockets.TcpClient

$ErrorActionPreference = 'SilentlyContinue'

#Connect on the given port
$Socket.Connect($ip, $p)

$ErrorActionPreference = 'Continue'

#Determine if the connection is established
if ($Socket.Connected)
{
Write-Host "Outbound port $p is open." -ForegroundColor Yellow
$Socket.Close()
}
else {
Write-Host "Outbound port $p is closed or filtered."
}

$Socket = $null

}
#end foreach

}