r1 - 2001-08-16 - 19:58:33 - PeterThoeny You are here: NTP >  Dev Web > WebChanges
NTP users are strongly urged to take immediate action to ensure that their NTP daemons are not susceptible to being used in distributed denial-of-service (DDoS) attacks. Please also take this opportunity to defeat denial-of-service attacks by implementing Ingress and Egress filtering through BCP38.

ntp-4.2.8p15 was released on 23 June 2020. It addresses 1 medium-severity security issue in ntpd, and provides 13 non-security bugfixes over 4.2.8p13.

Please see the NTP Security Notice for vulnerability and mitigation details.

Are you using Autokey in production? If so, please contact Harlan - he's got some questions for you.

100 Recent Changes in Dev Web retrieved at 10:32 (GMT)

Statistics for Dev Web Month: Topic views: Topic saves: File uploads: Most popular topic views: Top contributors for topic save and uploads ...
NTP Release Timeline Date Release # of Fixes Comment No more releases of ntp 4.2.8 are planned, but if more are needed we will make them ...
Updating libopts NOTE WELL: If autogen is upgraded on whimsy and another release of stable is planned, that tarball will be using the new autogen ! (Also ...
Release Steps Here are notes on what to do to create a release. Should this information continue to be here, or should we move it to the Committers web, or perhaps ...
NTP Variables and ntpq Related Topics: , , , , ConfigurationAndAuthorizationLevelsForNtpd Problem Summary ntpd and ntpq exchange system, peer, clock and ...
Configuration and Authorization Levels for ntpd Related Topics: NtpVariablesAndNtpq Background and History Analysis .BrianUtterback suggests we need to classify ...
Embedded Version String Content While fixing it was noted that the version string in the code takes the form: Version @ CSet build flags date buildnumber where ...
NTP's Authentication Key String Format The ntp.keys file contains a list of symmetric keys, in the form: NN AAA KKK where: NN a number, between 1 and 65535 ...
Development Issues This is a top level topic for the discussion of general NTP development issues. Please add items to the top of this list following the format ...
Welcome to the NTP Developers Web. This is a web based collaboration area for NTP Development related issues. Please feel free to add / modify / reorganize / recategorize ...
Recent Changes: View complete list Bug Lists: ...
Updating the Copyright Year Edit html/copyright.html Edit sntp/include/copyright.def In A.whatever run make COPYRIGHT If you do a full ...
Prefer Keyword Related Topics: , , html/prefer.html The prefer keyword was designed to be used by refclocks. It may also be used for other associations. The ...
NTP Protocol Response Matrix Related Topics: , , , NtpBroadcastIssues, KoDResponses Client/Server From assoc.html : Client/server mode is the most common configuration ...
Updating the REFID format Related Topics: RefidFormat, , , LeapSmearForNTPv4 Original Format The current format for the Refid is either: .ABCD. for a reference ...
GSoC Project Ideas Related Topics: NTF:GSoC/GSoCProjectIdeas Testing Anyone interested in learning advanced techniques in software testing will be interested ...
Deprecating ntpdc ntpd 4.2.7p230 defaults to ignoring ntpdc queries: http://lists.ntp.org/pipermail/questions/2011 November/030882.html KenyonRalph 2012 05 11 ...
What to expect as a project committer When you become a project committer you will: get ssh access to a shell account on appropriate machines at NTF or UDel ...
ChangeLog Maintenance ChangeLog in dev If a change is being applied to both stable and dev , only add the ChangeLog entry to stable , as it will get ...
Release Schedule ntp 4.4 Blocking Issues ntp 4.2.8p4 Scheduled 21 October 2015 Focus: Security fixes, bug fixes, Unit tests. ...
ntp 4.4 ntp 4.2.8p4 ntp 4.2.8p3
GSoC 2015 NTP Testing : Migration to Unity Framework UnitTesting Student: .LokeshWalase Mentors: .HarlanStenn, .RahulKumar GSoC: https://www.google ...
GSoC 2015 Testing Damir Tomic Student: .DamirTomic Mentors: .RahulKumar, .HarlanStenn GSoC: Project Page Summary Related Items: Tasks learning ...
Leap Smear for NTPv4 Related Topics: UpdatingTheRefidFormat Actual Implementation Leap smearing was implemented in ntpd versions 4.2.8.p3 and 4.3.47; more information ...
Travis CI Notes Related Topics: Background TomaszFlendrich has been working on using http://travis ci.com and http://travis ci.org to help run test builds of ...
Information for Maintainers Related topics: BitKeeperNotes, DocumentationNotes, SoftwareDevelopment, ssh notes , TravisCINotes Feel free to make improvements ...
GSoC 2015 ntp.conf web generator Parth Student: .ParthKolekar Mentors: .HarlanStenn, .WayneBuckhanan GSoC: Project Page Source Code: Page ...
Study the usefulness of different clock models for NTP Student: .DurgeshPandey Mentors: .JudahLevine, .TerjeMathisen GSoC: Project Page Summary The ...
To subscribe to this nop WebNotify service please add a bullet with your .WikiName in APLPHABETICAL order to this list: Format: space space space , followed ...
Leap Second File Issues Related Topics: LeapSecondTest We also want to understand the issues around UTC/TAI offsets.
Google Summer Of Code Related Topics: NTF:Main/GoogleSummerOfCode PTPd:Main/GoogleSummerOfCode Student Application Template Please see Summer Of Code Student ...
Updating the test suite of Network Time Protocol Student: .TomaszFlendrich Mentors: .HarlanStenn, .RahulKumar GSoC: Project Page Summary Related ...
Release Version Numbers Related Topics: EmbeddedVersionStringContent Post 4.2.8 The current official numbering mechanism is described on the release numbering ...
NTP Startup "step" choices When ntpd is started an offset correction may need to be applied. How that is done depends on the operational state of the machine. Note ...
NTP Startup Issues The usual perspective when starting NTP is that there are two "startup conditions", cold start (boot) and warm start (restart). Cold Start At cold ...
NTP Drift File Notes Related Topics: History ntpd has long had the option of writing a drift file, usually ntp.drift . The value written there was the recent ...
NTP Path Names NTP has traditionally used a number of path names that, with the benefit of hindsight, would be different. Whenever we have made the attempt to "fix ...
Getting NTP into SVK As mentioned elsewhere, the opensource BitKeeper client is only able to pull sources from an upstream BitKeeper repository. You can't issue commands ...
If you want to inspect a remote repository, your best bet is to browse it. (There are some command line variations of bk that will give you some information about ...
BitKeeper Notes For more information about using or tracking NTP repositories using either the opensource or commercial BitKeeper programs see SoftwareDevelopment ...
Release Numbering Scheme Discussion Related Topics: ReleaseNumberingScheme Examples Note that if we stick with a 3 part number and move the Protocol from the ...
NEWS File Maintenance Related Topics: Steve has updated the code which generates the diff between the current and previous NEWS files used in place of the ChangeLog ...
Bugzilla Wishlist Related Topics: MaintainerIssues, http://bugzilla.mozilla.org/show bug.cgi?id 9412, , , , , , , , , Harlan's original Bugzilla wishlist ...
SHM Refclock Driver, V2 Related Topics: History refclock shm.c says, in part: To add new modes: Extend or union the shmTime struct. Do not extend/shrink size ...
Code Review http://jonoscript.wordpress.com/2010/05/04/design lunch code review in bugzilla/ http://www.reviewboard.org/ http://code.google.com/p/gerrit ...
NTP Broadcast Issues Related Topics: , , NtpProtocolResponseMatrix When should we listen on the IPv4 wildcard address? In 4.2.7, I believe we no longer listen ...
NTP Startup Analysis Related Topics: GSoC2013StartupAnalysisRahul, GSoC2013StartupAnalysisRahulDesign History With a good drift file, stable conditions, and ...
NTP Coding Style Coding Style Tabstops at every 8th position, so a line beginning with tab is indented as if it had 8 spaces in place of the tab. Tabs should ...
Cross compiling NTP The configure script uses the cpu vendor os string to make decisions on a number of configurable items. While in a 'regular' build we can ...
Deprecating ntpdate The combination of ntpd and sntp now implements the functions of ntpdate . As soon as a few remaining issues with sntp are resolved the ...
NtpAuthKeyStringFormat LeapSmearForNTPv4 LeapSecondFileIssues NtpStartupIssues
Kiss o' Death (KOD) Responses Related Topics: NtpProtocolResponseMatrix KOD codes and meanings Per RFC5905, Section 7.4 and Figure 13. DENY Access denied ...
Help Wanted We want to release NTP version 4.2.8 soon. The following areas could use some help: Documentation Review the documentation in the html/ folder and let ...
Documentation Notes HTML Pages Harlan runs the following script to check the HTML documentation: #! /bin/sh cd html new for i in `find type f grep v '^x/'` ...
Documentation Project Related Topics: DocumentationNotes Overview Dave has been maintaining the entire body of documentation as html pages. There are certain ...
Authentication Issues and Suggestions Related Topics: Digest Methods For an in depth discussion of this, see MACDigestMethods. MAC field The MAC (Message Authentication ...
This topic discusses a feature which may be added to a future release of NTP. This feature is not present in any current release of NTP. The query on directive ...
NTP Logging and Debugging API Manual (as on 10th Aug 2012) Log messages can be logged to various channels SYSLOG Various Syslog Facilities ...
Data Structures for Config Saving A Log can be sent to a File, Syslog, or stderr. So, the possible logging channels are FILE SYSLOG STDERR The ...
Leap Second Testing This page is a simple description of testing the leap second implementation in NTP, this is part of my GSoC project as suggested by Harlan and ...
Work Page Initial Discussion We have data from a single hosts, some 'p' no. of packets. Task is to find offset and drift(frequency). One of the Idea to ...
Clock Startup Analysis Rahul Student: .RahulKatare Mentors: .HarlanStenn, .MartinBurnicki GSoC: Project Page Summary Ntpd program is an operating ...
Data Analysis Framework The framework consists of a complete hierarchical structure which is organized as follows : Sessions : Each session has unique interval ...
NTP Logging and Debugging Functions and Types Types Used In API logc loggerType t: Enum type stores value STDOUT, STDERR, FILEOUT, RBUFOUT, SYSLOG logc ...
Logging and Debugging Student: .ShubhamSinghal Mentors: .HarlanStenn GSoC: Project Page Summary Related Items: GSoC2012LoggingDebugging, GSoC2010LoggingAndDebugging ...
Unit Testing Allen Student: .AllenZhong Mentors: .RahulKumar, .HarlanStenn GSoC: Project Page Summary Related Items: UnitTestFramework, UnitTestingNotes ...
GNU nop AutoGen Conversion Starting with 4.2.4 we are using AutoGen to provide consistent options processing, easier enum/flag/descriptor maintenance, and eventually ...
NTP Logging and Debugging API Manual Configuration The NTP Logging Framework shall take most of its logging configuration by parsing the ntp.conf configuration file ...
Weekly Updates for the GSoC 2013 Unit Testing Project of Allen This page is the weekly updates of my GSoC project. Jul 28, 2013 6th week Done: Some improvement ...
Unit Testing Yan Student: .YanZhang Mentors: .AmarTakhar GSoC: Project Page Summary This task will be focus on the ntpd codes that are actually working ...
LOG ENTRIES FORMAT Log Messages Format timestamp, user , computer, process : section, severity, FILE , FUNCTION, LINE , message show refclock info ...
2013 Unit Testing Notes Related Topics: UnitTestFramework libntp This section contains notes about problems that have come up when writing tests for libntp There ...
Virtual Build Box Related Topics: AutomatedBuildFramework, Vm1DeploymentPlan Goals A "library" of startable VMs, in a number of versions of a number of different ...
ntp/scripts/ Cleanup Student: .OliverKindernay Mentors: .HarlanStenn, .RahulKumar GSoC: Project Page Summary The goal is to improve general code structure ...
Logging and Debugging (GSoC 2012) Student: .RajulSrivastava Mentors: .HarlanStenn, .DaveHart GSoC: Project Page Summary Related Items: GSoC2009LogDebug ...
Clock Startup Analysis Aaron Student: .AaronChen Mentors: .HarlanStenn, .MartinBurnicki GSoC: Project Page Summary Related Items: Tasks ...
Windows Porting Issues NTP can be built under the following versions of Windows (please update as needed): Windows XP Windows 7 using the following toolchains ...
This is a top level topic for the discussion of porting NTP. Please feel free to add sub topics to this list: Autoconf Issues Cross compiling ...
Fixed Sized Types and Sign Extensions Related Items: , , Problem Summary With the advent of 64 bit systems several problems have been encountered with the handling ...
There are few issues with current logging and debugging system we have for ntp . There are two main files we redirect our output to namely main syslog and ntp log ...
Technical Notes Related Topics: Reading the System Clock There are two interesting numbers here, the precision of the clock and the time it takes to read the ...
Automated Build Framework Related Topics: VirtualBuildBox, Vm1DeploymentPlan Background The NTP software has proven to be remarkably portable, running on a huge ...
Per File Copyright and LIcense Notice Related Items: Options If we decide to go to a per file notice we have choices: A Copyright Notice A License ...
Design By Contract and NTP I've started to add 'design by contract' assertions into certain areas of the codebase. The primary reason for this is to make the code ...
The new ntp.conf file format Please add your comments following the appropriate point of discussion following the existing format (e.g. add your signature at the end ...
Unit Testing (GSoC 2012) Student: .AdrianSpiridon Mentors: .AmarTakhar, .RahulKumar GSoC: Project Page Summary The goal of this project is to continue ...
Tasks yet to be done Config Related 1 Implement saveconfig 1 Implement show output to ntpq (HMS: can be done later) 1 To convert the config structure ...
Documentation of the Logging and Debugging API for NTP Related Topics: Config file format logging show logging show N logging show syslog logging clear logging ...
Clock Models (GSoC 2012) Student: .ThiagodeFreitas Mentors: .JudahLevine, .HarlanStenn GSoC: Project Page Summary The goal of this project is to analyze ...
Loadable Refclock Drivers ntpd has traditionally used statically linked reference clock drivers. While this means that the executable is more tamper proof, it also ...
LOG ENTRIES FORMAT Present FORMAT of Log Messages timestamp computer process: message Example : May 12 23:25:33 rajul Ideapad Z560 ntpd 6934 : proto: precision ...
Leaner and Meaner ntpd Background One person's signal is another person's noise. ntpd is used in a wide variety of environments. Some of them want to use all ...
Date Task Description % Done 04 23 Community Bonding Students get to know mentors, read documentation, get up to speed to begin working on their projects ...
Unit Testing (GSoC 2011) Student: .LinusKarlsson Mentors: .AmarTakhar, .HarlanStenn GSoC: Project Page Summary The goal of this project is to continue ...
Unit Test Framework Related Topics: UnitTestingNotes #RequiredTools Required Tools To make use of the test framework you will need: Google Test Version ...
Clock Models (Boris) (GSoC 2011) Student: .BorisSieklik Mentors: .JudahLevine, .HarlanStenn GSoC: Project Page Summary The goal of this project is ...
genLocInfo The genLocInfo script The top level configure program will run scripts/genLocInfo in order to choose, based on (the version of) the target operating ...
Number of topics: 100

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