Security Basics mailing list archives
RE: Questions about PC clock operations
From: "Robert D. Holtz - Lists" <robert.d.holtz () gmail com>
Date: Tue, 29 Aug 2006 12:01:20 -0500
Usually there are several mechanisms at play for a given machine keeping time. There's a clock that works when the machine is off, a real time clock chip when the machine is powered up, and most operating systems use NTP to keep making adjustments to the other two. This makes for pretty accurate time keeping for the most part. -----Original Message----- From: ricci () cse ust hk [mailto:ricci () cse ust hk] Sent: Monday, August 28, 2006 5:05 PM To: security-basics () securityfocus com Subject: Questions about PC clock operations Hello All, As you know time is a piece of information critical to digital forensics investigation. However, as the paper in DFRWS 2006 pointed out, the PC clock is not steady but drifting. So can any one let me know how the PC clock operates? Is there any difference between the time between Linux clock and Windows? Will the operating system be affecting the clock? Please advise. Thx. Ricci --------------------------------------------------------------------------- This list is sponsored by: Norwich University EARN A MASTER OF SCIENCE IN INFORMATION ASSURANCE - ONLINE The NSA has designated Norwich University a center of Academic Excellence in Information Security. Our program offers unparalleled Infosec management education and the case study affords you unmatched consulting experience. Using interactive e-Learning technology, you can earn this esteemed degree, without disrupting your career or home life. http://www.msia.norwich.edu/secfocus --------------------------------------------------------------------------- --------------------------------------------------------------------------- This list is sponsored by: Norwich University EARN A MASTER OF SCIENCE IN INFORMATION ASSURANCE - ONLINE The NSA has designated Norwich University a center of Academic Excellence in Information Security. Our program offers unparalleled Infosec management education and the case study affords you unmatched consulting experience. Using interactive e-Learning technology, you can earn this esteemed degree, without disrupting your career or home life. http://www.msia.norwich.edu/secfocus ---------------------------------------------------------------------------
Current thread:
- Questions about PC clock operations ricci (Aug 29)
- RE: Questions about PC clock operations Robert D. Holtz - Lists (Aug 30)
- Re: Questions about PC clock operations tony barry (Aug 30)
- <Possible follow-ups>
- RE: Questions about PC clock operations Scott Ramsdell (Aug 30)
- Re: Questions about PC clock operations Jim Mellander (Aug 31)
- RE: Questions about PC clock operations Dave Lapsley (Aug 31)