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I'm working on Debian machines in local network, and I'm using ptpd to synchronize them as much as possible.

  1. Is there a better solution (working on GNU/Linux) to get them even more synchronized over local network?
  2. Is there a solution (also working on GNU/Linux) to achieve similar/better efficiency over Internet?
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closed as not a real question by womble, ewwhite, MDMarra, Lucas Kauffman, SvW May 7 '12 at 13:25

It's difficult to tell what is being asked here. This question is ambiguous, vague, incomplete, overly broad, or rhetorical and cannot be reasonably answered in its current form. For help clarifying this question so that it can be reopened, visit the help center.If this question can be reworded to fit the rules in the help center, please edit the question.

    
Do you mean ntpd? If so, no. If you don't mean ntpd, the answer is ntpd. edit: ptpd is an actual thing? Wow. Didn't know that. Reading about it seems to indicate that ntpd works better at accounting for WAN networks, whereas ptpd is better around low-latency networks. If you want to sync over the internet, where you can't guarantee the network, ntpd seems the way to go, but you may have already tried this. –  growse May 7 '12 at 12:34
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Perhaps the better question is, what's the problem you're running into with PTPD? –  Bart Silverstrim May 7 '12 at 12:37
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1 Answer

Strange question. I'd say the answer to #1 is no... Are you having a particular problem with PTP (Precision Time Protocol)? If so, can you explain what the application is? There are very few applications where sub-micro accuracy is required. There isn't much detail in the original question to help understand the problem you're trying to solve.

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