NTP service

Similar Questions

• Problems with the configuration of the ntp service application

  Hi people,

  I'm stuck at the configuration of the ntp service to start by default on an esxi server via perl.

  That's what I'm doing:

  My $hostServiceConfig = new HostServiceConfig (serviceId = > 'ntpd', startupPolicy = > 'on');

  My $hsca = [];

  Push (hsca @$, $hostServiceConfig);

  My $hostConfigSpec = new HostConfigSpec (service = > $hsca);

  My $taskRef = $hostProfileManager-> ApplyHostConfig_Task (host = > $host, context = > $hostConfigSpec);

  When I ask the status of the command fails:

  SOAP fault:

  -----------

  Error string: the operation is not allowed in the current state.

  Lack of details: InvalidState

  I guess I'm just missing some small detail. Maybe someone sees my mistake right now :-)

  Hi eholtz,

  Here's the code I added to hostServiceManagement.pl (IIRC!):

  1. check the boot strategy:

  sub checkServiceEnabled {
          my ($serviceSystem,$service) = @_;
  
          my $services = $serviceSystem->serviceInfo->service;
  
          foreach(@$services) {
                  if($_->key eq $service) {
                          return $_->policy;
                  }
          }
          return 0;
  }
  

  2 then disable the service:

  my $policy = &checkServiceEnabled($serviceSystem,$service);
  if($policy eq "on") {
          eval {
                  $serviceSystem->UpdateServicePolicy(id => $service, policy => "off");
                  print "\t" . color("cyan") . "Successfully disabled $service\n" . color("reset");
          };
          if($@) {
                  print "\t" . color("red") . "Error: Unable to change startup policy on service \"$service\" due to: " . $@ . color("reset") . "\n";
          }
  }elsif($policy eq "off") {
          print "\t" . color("yellow") . "$service is already disabled" . color("reset") . "\n";
  } else {
          print "\t" . color("red") . "Error: Unknown startup policy \"$policy\"" . color("reset") . "\n";
  }
  

  And to allow:

  my $policy = &checkServiceEnabled($serviceSystem,$service);
  if($policy eq "off") {
          eval {
                  $serviceSystem->UpdateServicePolicy(id => $service, policy => "on");
                  print "\t" . color("cyan") . "Successfully enabled $service\n" . color("reset");
          };
          if($@) {
                  print "\t" . color("red") . "Error: Unable to change startup policy on service \"$service\" due to: " . $@ . color("reset") . "\n";                     }
  
  }elsif($policy eq "on") {
          print "\t" . color("yellow") . "$service is already enabled" . color("reset") . "\n";
  } else {
          print "\t" . color("red") . "Error: Unknown startup policy \"$policy\"" . color("reset") . "\n";
  }
  

  P.s.: based on your current score, you should be able to PM me now...

  Kind regards

  --

  Thomas

• ExaNode NTP Configuration and restarting the ntp service require Exa storage and DB service restart?

  We strive to upgrade our 11.2.0.3 to 11.2.0.4 grid infrastructure, but before executing check that we have the below error

  Common NTP Time Server checks began...

  PRVF-5410: time server control failure common NTP

  PRVF-5416: failure of the request of the NTP daemon on all nodes

  Control of clock synchronization using time Protocol (NTP) network failed

  
  We found a document of MOS suggesting to manually day /etc/ntp.conf and restart the ntp daemon - but it is not clear whether the services running the grid needs to stop. Can you please help

  Thank you

  No, we don't need to reboot.

  The time is out of sync currently?

  Thank you

• Query - start the NTP service

  We get the list of esxi host that are not always in sync with the server ntp of 5 seconds.

  And the list is around 20-25 servers.

  Can we create a script that can restart the ntp server 25 service.

  I guess the list of servers is in a CSV file, which looks like this

  Host name

  ESX1

  ESX2

  ...

  Then, you could do something like that

  Import-Csv hostnames.csv -UseCulture | %{  Get-VMHost -Name $_.Hostname | Get-VMHostService | where {$_.Key -eq "ntpd"} |  Restart-VMHostService -Confirm:$false}
  

• Reset the NTP Service on all hosts

  Hi all.

  I've been in it for almost thirty years and people always tell me I should learn the "language X." they tell me it will save me time and aggrivation.  Of course, the most recent is Powershell, and since I am woriking in tVMWare, PowerCLI infrastructure any type of following along.  So when I sit, looking at what should be a relatively simple script, spinning my wheels waste ime more that it would take to just do it manually in the GUI!  So here I sit feeling my blood pressure elevation and wonder why I bother to try this shit!  Sorry for ranting a bit, but maybe someday someone will invent a language that really SIMPLIFIES them THINGS!

  My task was simple.  Change the NTP server on our VMWare hosts entries.  So I found a script in one of the forumns, and although he was 'logic' (Yes!) to restart the service after the change is made, it did not do that, then this morning, I went looking for a code to do just that last piece.  I found a script on the blog of Simon Long which looked pretty simple, and I was able to follow the logic of the orders.  So I stuck in a script and edited to my environment.

  Here's the script.

  $Hosts= Get-VMHost

  ForEach($Hostin $Hosts)

  {

  Remove-VmHostNtpServer-NtpServer"<old ntp server>" -VMHost $Host| Out-Null

  Add-VmHostNtpServer-NtpServer"<new ntp server>" -VMHost$Host| Out-Null

  Get-VmHostService-VMHost$Host | Where-Object {$_.key -eq "ntpd"} | Restart-VMHostService-Confirm:$false| Out-Null

  write"NTP Server was changed on $Host"

  }

  Given that I had already changed the host at the new address, I deleted the first two lines of the loop.  I he started with a connect-viserver, saved command, ran and he bombed on the foreach loop, stating that $host was read-only and could not be changed.  I DIDN'T ASK TO CHANGE IT!  So, I'm about to PowerCLI and rename it UselessPOS yet another!  Can someone give me logical som REAL as to why he thinks that it should alter this variable?

  Your script is all right, just change the name of the loop variable.

  Something like this for example

  $Hosts=Get-VMHost

  ForEach($esxin$Hosts)

  {

     Remove-VmHostNtpServer-NtpServer""-VMHost$esx|Out-Null

     Add-VmHostNtpServer-NtpServer""-VMHost$esx|Out-Null

     Get-VmHostService-VMHost$esx|Where-Object{$_.key-eq"ntpd"} | Restart-VMHostService-Confirm:$false|Out-Null

     write"NTP Server was changed on $esx"

  }

• Daily ESXi NTP healthcheck service

  Hello

  We have the need to monitor the config and status of our ESXi hosts the NTP service and tried some of the solutions mentioned on this blog. The last one I tried was posted by "jaydo123" but seems to be for a single post.

  Our goal is to interview guests and view state on a web page that could be controlled by our events team

  Example of the info we need.

  Hostname, NTPservice State, NTP server and the current time on the esxi host.

  We will have the page to refresh every hour.

  Has anyone ever had the need to do and if so any suggestions on getting this right.

  Thank you

  Johan

  Take a look on Script: check the status of ntp and time on your ESX Servers.

  It requires the use of plink to retrieve the current date of the ESXi servers.

• NTP Windows Server and AIP - SSM

  We use a server based on Windows as the NTP server. But I need the NTP key to configure NTP on the AIP - SSM, key to the ID value and the NTP. How do you find this information or bypass? Or is it possible to set the clock without using an NTP server. I disabled the NTP service, hoping that it will use the firewall clock, but it didn't.

  Kind regards

  Your offset must be-360.

  The offset is in minutes rather than hours. Now, you say that the CDT is only 6 MINUTES from GMT when what you want-6 HOURS-360 minutes.

  offset - 360

• Cisco NTP Sync ISE

  Hi people,

  I was wondering if anyone knows the reason why a Cisco ISE is not synchronized with the NTP server. I am able to ping from ISE servers and wireless controller is properly synchronized.

  Is there something more in addition to time zone and Setup "ntp server"?

  synchronized to a stratum 11 LAN
  correct time less than 11 ms
  vote server each 1024 s

  refid distance st t when poll reach delay offset jitter
  ==============================================================================
  * 127.127.1.0. LIUX.          10 l 33 64 377 0.000 0.000 0.001
  x.x.x.x 200.160.7.193 2 7 1024 186 0,671 u 2545847 56.067
  x.x.x.x 200.160.0.8 3 202 1024 7 0.630 u 2545853 55.940

  * Current time + candidate source

  ATTENTION: Output results can conflict in change of the synchronization periods.

  '

  Hi Flavio,

  It happens with ISE and ACS, they synchronize correctly or loses the synchorinization, you can either make no ntp server and ntp again server or you can restart the NTP service. even that sometimes helps

  Bravo!

  Bellefroid

• ASA 5510 as NTP server

  I did some research and could not come to a conclusion on this. I want my ASA to provide NTP inside my AD domain. My DC [operations master] is not able to take NTP of the SAA.

  I found some messages that people "thought" that this ASA could not do this, the documentation does not mention whether or not she can. So I'm throwing out there once more:

  The ASA allow NTP services?

  Thank you in advance.

  ASA cannot provide NTP service.

• ESXi 5.1 configured as a NTP server, do not sync with the Local PC

  I have a 5.1 ESXi server configured as an NTP server and a Windows Server 2008 R2 local PC that are not sync.  I understand well, it is not recommended for ESXi, but I read [1] [2] that, whenever an ESXi server is running as a client, it also acts as a server, so I enabled as a NTP client in vSphere by ticking the NTP client, adding some servers to the server list, and then click on run, and I also activated the 123 incoming/outgoing port by adding the shell of ESXi firewall settings.

  I'm pretty sure it isn't a firewall problem.  I completely disabled the firewall on my local PC.  Running "w32tm keyboardists computers: - IP address of the server -" give me the time of the server and running the software NTPQuery gives me an answer back on port 123 of the server time.

  I tried:

  - Date/time settings (right-click on notification area-> set date/time-> Internet time-> set as the IP address of the server) - sync fails (* an error has occurred while Windows timed with - server IP-*)

  - Group Policy Editor (Computer Configuration\Administrative Templates administration\systeme\service Time Service, currently disabled but because I heard this causes problems) - synchronization fails

  - The registry editor (HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\W32Time\settings) - synchronization fails

  - Command prompt, using:

  w32tm /config /manualpeerlist:-IP of server- /syncfromflags:MANUAL /reliable:yes /update
  net stop w32time && net start w32time
  w32tm /resync /rediscover
  
  
  

  This updates the registry properly, but the outputs "the computer did not resync because no time data was available."  And when I use the command "w32tm/query/source" the source is always "The local CMOS clock."

  Here is the output from w32tm/query /configuration

      [Configuration]
  
  
      EventLogFlags: 2 (Local)
      AnnounceFlags: 5 (Local)
      TimeJumpAuditOffset: 28800 (Local)
      MinPollInterval: 10 (Local)
      MaxPollInterval: 15 (Local)
      MaxNegPhaseCorrection: 3600 (Local)
      MaxPosPhaseCorrection: 3600 (Local)
      MaxAllowedPhaseOffset: 1 (Local)
    
      FrequencyCorrectRate: 4 (Local)
      PollAdjustFactor: 5 (Local)
      LargePhaseOffset: 50000000 (Local)
      SpikeWatchPeriod: 900 (Local)
      LocalClockDispersion: 10 (Local)
      HoldPeriod: 5 (Local)
      PhaseCorrectRate: 1 (Local)
      UpdateInterval: 360000 (Local)
  
  
    
      [TimeProviders]
    
      NtpClient (Local)
      DllName: C:\windows\system32\w32time.dll (Loca
      Enabled: 1 (Local)
      InputProvider: 1 (Local)
      AllowNonstandardModeCombinations: 1 (Local)
      ResolvePeerBackoffMinutes: 15 (Local)
      ResolvePeerBackoffMaxTimes: 7 (Local)
      CompatibilityFlags: 2147483648 (Local)
      EventLogFlags: 1 (Local)
      LargeSampleSkew: 3 (Local)
      SpecialPollInterval: 900 (Local)
      Type: NTP (Local)
      NtpServer: -IP of server-,0x1 (Local)
    
      NtpServer (Local)
      DllName: C:\windows\system32\w32time.dll (Loca
      Enabled: 1 (Local)
      InputProvider: 0 (Local)
      AllowNonstandardModeCombinations: 1 (Local)
  
  
  

  Any ideas?  Thanks in advance.

  Your ESXi server response shows that the leap indicator is 3 and the server stratum is 0.

  This means that ESXi NTP server is synchronized and unable to provide a valid reference time to customers.

  We recommend that you configure your ESXi host with valid upstream NTP servers such as:

  0.vmware.pool.ntp.org,1.vmware.pool.ntp.org and 2. VMware.pool.ntp.org

  as described in the KB article or alternatively your internet service provider NTP servers.

  Although not recommended, you can configure ESXi to allow a reference time by using the own system clock

  If you can not configure ESXi to synchronize to external NTP servers upstream.

  UI, tab Configuration, using software (time setting), properties, Options, and NTP settings.

  Specify "127.127.1.0" as your single NTP server. Don't forget to check the box "restart NTP service to apply the changes.

  then click OK twice to close the dialog boxes. Wait a few minutes for NTP sync, then try your test.

  According to RFC 4330, NTP-SNTP (Simple) customers must not use time in a package of NTP response if the

  stratum returned is 0 (and the leap indicator is 3). Apparently, your client Windows NTP Simple is more

  the RFC.

• ESXi 5 NTP

  Trying to determine where NTPD (it seems to be version 2) is started, what are the options line it starts with (example:-a vs - a). It seems the services.sh script participates in the start, but I'm looking for more detailed information.

  Anyone?

  THX.

  When you run services.sh to restart services, it querries a list of services for the management of/etc/chkconfig.db.  You can configure the NTP service in the vSphere client by selecting the host, then Configuration > software > time Configuration.  You can manage NTP sources to be used, as well as the service started.   Alternatively, you can configure NTP settings via host profiles, a script installation or a script like PowerCLI tool.

  If you look at etc/init.d/ntpd, you will see that the configuration file is/etc/ntp.conf.

  ESXi includes ntpq that you can use to query the service.

  http://KB.VMware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalID=1005092

  http://KB.VMware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalID=2012069

• PowerCLI defining politics NTP to "Start and stop with the host" in ESXi 5

  Would appreciate any help in the definition of the strategy NTP on ESXi 5 hosts 'start and stop with the host. My script is currently using the following:

  Get-VMHost MyEsx | Get-VMHostService | where {$_.} Key - eq 'ntpd'} | Game-VMHostService-policy "automatic."

  This sets up the NTP service in "start automatically if all ports are open and stop when all ports are closed.

  "When I cange to 'MyEsx Get-VMHost | Get-VMHostService | where {$_.} Key - eq 'ntpd'} | Game-VMHostService-political ' market / stop with host"" the following is returned:

  «The possible enumeration values are "auto, On, Off«»»»

  Anyone know of a way (in PowerCLI) of the set up for the 'start and stop with host?

  OK, then you should choose politics "on".

  These are the policy values and what they match.

  

  Like this

  Get-VMHost MyEsx | Get-VMHostService | where {$_.Key -eq "ntpd"} | Set-VMHostService -Policy On
  

• NTP Configuration

  Guys,

  I have an ESXi 5 server in a lab at home environment and I am trying to configure NTP.  I configured the host in order to use pool.ntp.org public NTP servers but the time is not sync with NTP server.  I checked that the host has internet connectivity.

  Is anyone know why its not working?

  Or if someone could suggest an easy way of setting up a NTP server networked domestic HD?

  Kind regards.

  Fixed maximum time NTP is 15 minutes, set the time of the ESX in this range of NTP server. Restart the NTP service that should sink the time. If not then you can watch this http://kb.vmware.com/kb/1005092 KB

• NTP, not synchronization time in ESXi 3.5 u4

  I have a server ESXi 3.5 U4 and set up an ntp server, using the vi client and made sure the service is running. but it seems that the ntp server does not synchronize time the esxi with external ntp server host. to check whether the ntp is syncing, I intentionally rewinding a few minutes using the vi client and with ntp running service and noted that the time is not corrected w/c leads me to conclude that ntp does not work. can someone point me to the right direction here.

  Make sure that DNS is correctly configured and that the ntp pool can be resolved. It sometimes takes a while to have the synchronization time. Ntp pool is random. You may have picked up a dead destination. Try to use a different pool and make sure you restart the ntp service.

• Both the configuration and ntp.conf tab / step-tickers

  Hi so just wondering with the new tab of configuration of time do I need to set ntp server in ntp.conf and step tickers or which has become redundant? Just I have a few guests who are about 10 min outside in their time, I checked and the file or ntp or tickers are defined but the time configuration tab is activated in the firewall client ntp...

  Bravo!

  I don't think you need to do something on the ntp.conf or step-tickers. you just need to enter the ntp server settings in the configuration tab. I've seen the issue you mentioned, but can be solved by restarting the ntp service available in the same window... hope that helps.

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