SetSyslogServer.cmd

$LogInsightServer = "tcp:|udp://fqdn-or-ip:514"

Get-VMHost | Foreach {

Write-Host "Adding $LogInsightServer as Syslog server for $($_.Name)"
$SetSyslog = Set-VMHostSyslogServer -SyslogServer $LogInsightServer -VMHost $_
Write-Host "Reloading Syslog on $($_.Name)"
$Reload = (Get-ESXCLI -VMHost $_).System.Syslog.reload()
Write-Host "Setting firewall to allow Syslog out of $($_)"
$FW = $_ | Get-VMHostFirewallException | Where {$_.Name -eq 'syslog'} | Set-VMHostFirewallException -Enabled:$true

}