In this script we install FTP also we configure the isolate mode and some directives to allow Ftp connections without TLS 'cause we don't have SSL valid certificate.

install_ftp.ps1

Install-WindowsFeature Web-FTP-Server -IncludeAllSubFeature
Write-Host "Se instalo correctamente el servidor FTP"
Get-Service  ftpsvc 
Import-Module WebAdministration
mkdir "\inetpub\myftpsite\"
mkdir "\inetpub\myftpsite\LocalUser\"
mkdir "\inetpub\myftpsite\LocalUser\Administrador\"
mkdir "\inetpub\myftpsite\LocalUser\Administrador\public_html\"
New-WebFtpSite -Name "ftp" -Port "21" -Force
cmd /c \Windows\System32\inetsrv\appcmd set SITE "ftp" "-virtualDirectoryDefaults.physicalPath:C:\inetpub\myftpsite" 
Get-Website
Set-ItemProperty "IIS:\Sites\ftp" -Name ftpServer.security.ssl.controlChannelPolicy -Value 0
Set-ItemProperty "IIS:\Sites\ftp" -Name ftpServer.security.ssl.dataChannelPolicy -Value 0
Set-ItemProperty "IIS:\Sites\ftp" -Name ftpServer.security.authentication.basicAuthentication.enabled -Value $true
Set-ItemProperty "IIS:\Sites\ftp" -Name ftpserver.userisolation.mode -Value 3
Add-WebConfiguration "/system.ftpServer/security/authorization" -value @{accessType="Allow";roles="*";permissions=3} -PSPath IIS:\ -location "ftp"
Restart-WebItem "IIS:\Sites\ftp"
$ip = Read-Host "Ingresar la IP de su servidor"
Add-DnsServerResourceRecord -ZoneName "allexiusw.com" -A -Name "ftpadmin" -AllowUpdateAny -IPv4Address "$ip" -TimeToLive 01:00:00 -AgeRecord
New-IISSite -Name "Site administrador app" -PhysicalPath "C:\inetpub\myftpsite\LocalUser\Administrador\public_html\" -BindingInformation "*:80:ftpadmin.allexiusw.com"
echo "<h1>Sitio del Administrador</h1>" > C:\inetpub\myftpsite\LocalUser\Administrador\public_html\index.html
Write-Host "Emitir el comando ping ftpadmin.allexiusw.com"
Write-Host "Instale Filezilla y contectese con el usuario Administrador y su contraseña puede ademas conectarse al sitio creado ftpadmin.allexiusw.com"