vSphere – Page 2 – Chris

How to install a new Certificate for vCenter Server

November 6, 2016 Christoph Hochsticher Comments 4 comments

Everybody knows this warning. Now I show you how to change the vCenter Certificate to avoid this ugly page.

vSphere 6.5 Anounced with many good and overdue features

October 24, 2016 Christoph Hochsticher Comments 0 Comment

Last week I saw the new vSphere 6.5 at VMworld 2016 (EU). I’m very happy with the upcoming features. Some of them are extremely cool and some are overdue.

Is the SSH-Service on your ESXi disabled?

October 4, 2016 Christoph Hochsticher Comments 0 Comment

In times like these, where daily security leaks are published, it’s time to check some basics. Run the following PowerCLI Script to see if the SSH-Service is running and disable it!

#List Hosts into Array
$arr = @()
$arr = (Get-VMHost * | Foreach {($_ | Get-VMHostService | Where { $_.Key -eq "TSM-SSH"})} | select VMHost,Label,Policy,Running | Sort VMHost)

#Filter running SSH or Enabled
$sshOn = $arr | Where-Object { ($_.Running -eq "True") -or ($_.Policy -eq "on") }

#If SSH on -> Stop and Disable SSH
if (!$sshOn) {
Write-Host -BackgroundColor DarkGreen "No SSH enabled"
}
else {
#List Hosts
foreach ($VMhost in $sshOn) {Write-Host -BackgroundColor Red $VMhost.VMHost "- has SSH enabled"}
Write-Host -BackgroundColor Red "Stopping SSH Service and disable"
#Stop SSH Service
foreach ($VMhost in $sshOn) {Get-VMHost $VMhost.VMHost | Foreach {Stop-VMHostService -HostService ($_ | Get-VMHostService | Where { $_.Key -eq "TSM-SSH"})-Confirm:$false }}
#Disable SSH Service
foreach ($VMhost in $sshOn) {Get-VMHost $VMhost.VMHost | Foreach {Set-VMHostService -HostService ($_ | Get-VMHostService | Where { $_.Key -eq "TSM-SSH"}) -Policy Off -Confirm:$false }}
}

#List Hosts into Array

$arr = @()

$arr = (Get-VMHost * | Foreach {($_ | Get-VMHostService | Where { $_.Key -eq "TSM-SSH"})} | select VMHost,Label,Policy,Running | Sort VMHost)

#Filter running SSH or Enabled

$sshOn = $arr | Where-Object { ($_.Running -eq "True") -or ($_.Policy -eq "on") }

#If SSH on -> Stop and Disable SSH

if (!$sshOn) {

Write-Host -BackgroundColor DarkGreen "No SSH enabled"

}

else {

#List Hosts

foreach ($VMhost in $sshOn) {Write-Host -BackgroundColor Red $VMhost.VMHost "- has SSH enabled"}

Write-Host -BackgroundColor Red "Stopping SSH Service and disable"

#Stop SSH Service

foreach ($VMhost in $sshOn) {Get-VMHost $VMhost.VMHost | Foreach {Stop-VMHostService -HostService ($_ | Get-VMHostService | Where { $_.Key -eq "TSM-SSH"})-Confirm:$false }}

#Disable SSH Service

foreach ($VMhost in $sshOn) {Get-VMHost $VMhost.VMHost | Foreach {Set-VMHostService -HostService ($_ | Get-VMHostService | Where { $_.Key -eq "TSM-SSH"}) -Policy Off -Confirm:$false }}

}

Enjoy 😉

Updating vCenter is always a pleasure … (Part 3 of 3)

September 9, 2016 Christoph Hochsticher Comments 0 Comment

Take a look at the first bugs i saw within 10 Minutes on vCenter 6.

Updating vCenter is always a pleasure … (Part 2 of 3)

September 9, 2016 Christoph Hochsticher Comments 0 Comment

Cleanup your DB before the upgrade is not a “must” but this is a good moment.

Updating vCenter is always a pleasure … (Part 1 of 3)

September 9, 2016 Christoph Hochsticher Comments 0 Comment

Do you also have some concerns before updating your vCenter? For sure we all have a Plan and a Plan B, Plan C …, but there is always someting you didn’t considered or expected. I would like to show you my Upgrade from 5.5 U3b to 6.0 U2.