One of the most important things you should do to your systems is to ensure they have the right time.
In this post I will show how to check and ensure your systems have the correct time using PowerCli.
==> Login to vCenter:
$admin = Get-Credential –Credential EXAMPLE\john
Connect-VIServer -Server vc.example.com -Credential $admin
==> Check time settings:
|
1 2 3 4 5 6 7 8 |
Get-VMHost | Sort Name | Select Name, ` @{N="NTPServer";E={$_ |Get-VMHostNtpServer}}, ` Timezone, ` @{N="CurrentTime";E={(Get-View $_.ExtensionData.ConfigManager.DateTimeSystem) | Foreach {$_.QueryDateTime().ToLocalTime()}}}, ` @{N="ServiceRunning";E={(Get-VmHostService -VMHost $_ |Where-Object {$_.key-eq "ntpd"}).Running}}, ` @{N="StartUpPolicy";E={(Get-VMHostService -VMHost $_ |Where-Object {$_.Key -eq "ntpd"}).Policy}}, ` @{N="FirewallException";E={$_ | Get-VMHostFirewallException | where {$_.Name -eq "NTP client"} | Select-Object –ExpandProperty Enabled}} ` | Format-Table -AutoSize |
Output:
|
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 |
PowerCLI C:\Program Files\VMware\Infrastructure\vSphere PowerCLI> Get-VMHost | Sort Name | Select Name, ` >> @{N="NTPServer";E={$_ |Get-VMHostNtpServer}}, ` >> Timezone, ` >> @{N="CurrentTime";E={(Get-View $_.ExtensionData.ConfigManager.DateTimeSystem) | Foreach {$_.QueryDateTime().ToLocalTime()}}}, ` >> @{N="ServiceRunning";E={(Get-VmHostService -VMHost $_ |Where-Object {$_.key-eq "ntpd"}).Running}}, ` >> @{N="StartUpPolicy";E={(Get-VMHostService -VMHost $_ |Where-Object {$_.Key -eq "ntpd"}).Policy}}, ` >> @{N="FirewallException";E={$_ | Get-VMHostFirewallException | where {$_.Name -eq "NTP client"} | Select-Object -ExpandProperty Enabled}} ` >> | Format-Table -AutoSize >> Name NTPServer TimeZone CurrentTime ServiceRunning StartUpPolicy FirewallException ---- --------- -------- ----------- -------------- ------------- ----------------- esx1.example.com UTC 6/7/2015 3:25:39 PM False off False esx2.example.com UTC 6/7/2015 3:25:40 PM False off False esx3.example.com {192.168.10.1,192.168.11.1} UTC 6/7/2015 3:25:42 PM False off False esx4.example.com 192.168.11.1 UTC 6/7/2015 3:25:43 PM False off False |
==> Set time to correct time:
|
1 2 3 4 5 6 |
// Get time from the machine running PowerCli $currentTime = Get-Date // Update time on ESX hosts $hosts_time = Get-VMHost | %{ Get-View $_.ExtensionData.ConfigManager.DateTimeSystem } $hosts_time.UpdateDateTime((Get-Date($currentTime.ToUniversalTime()) -format u)) |
==> Remove old NTP servers (if any):
|
1 2 |
$old_ntp_server = '192.168.10.1' Get-VMHost | Remove-VmHostNtpServer -NtpServer $old_ntp_server -Confirm |
Output:
|
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 |
PowerCLI C:\Program Files\VMware\Infrastructure\vSphere PowerCLI> Get-VMHost | Sort Name | Select Name, ` >> @{N="NTPServer";E={$_ |Get-VMHostNtpServer}}, ` >> Timezone, ` >> @{N="CurrentTime";E={(Get-View $_.ExtensionData.ConfigManager.DateTimeSystem) | Foreach {$_.QueryDateTime().ToLocalTime()}}}, ` >> @{N="ServiceRunning";E={(Get-VmHostService -VMHost $_ |Where-Object {$_.key-eq "ntpd"}).Running}}, ` >> @{N="StartUpPolicy";E={(Get-VMHostService -VMHost $_ |Where-Object {$_.Key -eq "ntpd"}).Policy}}, ` >> @{N="FirewallException";E={$_ | Get-VMHostFirewallException | where {$_.Name -eq "NTP client"} | Select-Object -ExpandProperty Enabled}} ` >> | Format-Table -AutoSize >> Name NTPServer TimeZone CurrentTime ServiceRunning StartUpPolicy FirewallException ---- --------- -------- ----------- -------------- ------------- ----------------- esx1.example.com UTC 6/7/2015 3:25:39 PM False off False esx2.example.com UTC 6/7/2015 3:25:40 PM False off False esx3.example.com UTC 6/7/2015 3:25:42 PM False off False esx4.example.com UTC 6/7/2015 3:25:43 PM False off False |
==> Change NTP to desired configuration:
|
1 2 3 4 5 |
$ntp_server = '192.168.10.1' Get-VMHost | Add-VMHostNtpServer $ntp_server Get-VMHost | Get-VMHostFirewallException | where {$_.Name -eq "NTP client"} | Set-VMHostFirewallException -Enabled:$true Get-VMHost | Get-VmHostService | Where-Object {$_.key -eq "ntpd"} | Start-VMHostService Get-VMhost | Get-VmHostService | Where-Object {$_.key -eq "ntpd"} | Set-VMHostService -policy "automatic" |
Output:
|
1 2 3 4 5 6 |
PowerCLI C:\Program Files\VMware\Infrastructure\vSphere PowerCLI> $ntp_server = '192.168.10.1' PowerCLI C:\Program Files\VMware\Infrastructure\vSphere PowerCLI> Get-VMHost | Add-VMHostNtpServer $ntp_server 192.168.10.1 192.168.10.1 192.168.10.1 192.168.10.1 |
==> Enable Firewall Exception
|
1 2 3 4 5 6 7 8 |
PowerCLI C:\Program Files\VMware\Infrastructure\vSphere PowerCLI> Get-VMHost | Get-VMHostFirewallException | where {$_.Name -eq "NTP client"} | Set-VMHostFirewallException -Enabled:$true Name Enabled IncomingPorts OutgoingPorts Protocols ServiceRunning ---- ------- ------------- ------------- --------- -------------- NTP Client True 123 UDP True NTP Client True 123 UDP True NTP Client True 123 UDP False NTP Client True 123 UDP False |
==> Start NTPd service
|
1 2 3 4 5 6 7 8 |
PowerCLI C:\Program Files\VMware\Infrastructure\vSphere PowerCLI> Get-VMHost | Get-VmHostService | Where-Object {$_.key -eq "ntpd"} | Start-VMHostService Key Label Policy Running Required --- ----- ------ ------- -------- ntpd NTP Daemon on True False ntpd NTP Daemon on True False ntpd NTP Daemon off True False ntpd NTP Daemon off True False |
==> Ensure NTPd service starts automatically (via policy)
|
1 2 3 4 5 6 7 8 |
PowerCLI C:\Program Files\VMware\Infrastructure\vSphere PowerCLI> Get-VMhost | Get-VmHostService | Where-Object {$_.key -eq "ntpd"} | Set-VMHostService -policy "automatic" Key Label Policy Running Required --- ----- ------ ------- -------- ntpd NTP Daemon automatic True False ntpd NTP Daemon automatic True False ntpd NTP Daemon automatic True False ntpd NTP Daemon automatic True False |
==> Verify all is set the way you expected
|
1 2 3 4 5 6 7 8 |
Get-VMHost | Sort Name | Select Name, ` @{N="NTPServer";E={$_ |Get-VMHostNtpServer}}, ` Timezone, ` @{N="CurrentTime";E={(Get-View $_.ExtensionData.ConfigManager.DateTimeSystem) | Foreach {$_.QueryDateTime().ToLocalTime()}}}, ` @{N="ServiceRunning";E={(Get-VmHostService -VMHost $_ |Where-Object {$_.key-eq "ntpd"}).Running}}, ` @{N="StartUpPolicy";E={(Get-VMHostService -VMHost $_ |Where-Object {$_.Key -eq "ntpd"}).Policy}}, ` @{N="FirewallException";E={$_ | Get-VMHostFirewallException | where {$_.Name -eq "NTP client"} | Select-Object –ExpandProperty Enabled}} ` | Format-Table -AutoSize |
Output:
|
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 |
PowerCLI C:\Program Files\VMware\Infrastructure\vSphere PowerCLI> Get-VMHost | Sort Name | Select Name, ` >> @{N="NTPServer";E={$_ |Get-VMHostNtpServer}}, ` >> Timezone, ` >> @{N="CurrentTime";E={(Get-View $_.ExtensionData.ConfigManager.DateTimeSystem) | Foreach {$_.QueryDateTime().ToLocalTime()}}}, ` >> @{N="ServiceRunning";E={(Get-VmHostService -VMHost $_ |Where-Object {$_.key-eq "ntpd"}).Running}}, ` >> @{N="StartUpPolicy";E={(Get-VMHostService -VMHost $_ |Where-Object {$_.Key -eq "ntpd"}).Policy}}, ` >> @{N="FirewallException";E={$_ | Get-VMHostFirewallException | where {$_.Name -eq "NTP client"} | Select-Object -ExpandProperty Enabled}} ` >> | Format-Table -AutoSize >> Name NTPServer TimeZone CurrentTime ServiceRunning StartUpPolicy FirewallException ---- --------- -------- ----------- -------------- ------------- ----------------- esx1.example.com 192.168.10.1 UTC 6/7/2015 3:34:49 PM True automatic True esx2.example.com 192.168.10.1 UTC 6/7/2015 3:34:51 PM True automatic True esx3.example.com 192.168.10.1 UTC 6/7/2015 3:34:52 PM True automatic True esx4.example.com 192.168.10.1 UTC 6/7/2015 3:34:54 PM True automatic True |
Comments
Leave a comment Trackback