Advantages to using a Domain Time II daemon
There are many advantages to using a Domain Time II daemon instead of a standard NTP daemon such as XNTP. Domain Time II daemons:

• Keep the system clock synchronized more accurately than NTP daemons
• Support automatic installation on many UNIX and Linux flavors (rpm, pkgadd, etc.)
• Are easier to configure and manage
• Can discover Domain Time II servers automatically (see Discovery Process for more info)
• Provides automatic fall-back options in the event a time server is unavailable
• Integrate easily into a primarily Windows NT4/2K/XP/2003/Vista/2008 network
• Keep logs with adjustable levels of detail
• Interoperate with Domain Time II Management tools to generate automatic non-sync'd alerts, network-wide variance reports, and remote sync-on-demand

There are native Domain Time II client daemons available for the following flavors of UNIX and Linux:

Solaris

---

• Domain Time II Client daemon for Solaris 7/8 (SPARC)
• Domain Time II Client daemon for Solaris 7/8 (Intel)

  Note: Customers have reported running the daemon on Solaris 9 and later with no issues, however this is not a supported configuration.

  Download Solaris SPARC Client
  Download Solaris Intel Client

FreeBSD

---

• Domain Time II Client daemon for FreeBSD (Intel)

  Download FreeBSD Client

Linux

---

• Domain Time II Client daemon for RedHat or Mandrake
• Domain Time II Client daemon for SuSE
• Domain Time II Client daemon for TurboLinux
• Domain Time II Client daemon for Debian or Stormix
• Domain Time II Client daemon for Slackware

  Download Linux Clients

Installing and Configuring the Domain Time II daemon (domtimed)
Instructions for installing the domtimed daemon are contained in the README file, and configuration options are found in the domtimed.conf file included in the distribution download.
 

Sample README file

  ------------------------------------------------------------------------------
                  D O M A I N   T I M E   II   C L I E N T 
                  Versions for Solaris, FreeBSD, and Linux
------------------------------------------------------------------------------

Greyware Automation Products, Inc.
308 Oriole Ct
Murphy, TX  75094


       Voice:  (972) 867-2794
         Fax:  (972) 208-1479
Tech Support:  techsupport@greyware.com
       Sales:  sales@greyware.com

This program is NOT freeware.  It is shareware distributed on a try-before-
you-buy basis.  This is the honor system; please honor it.  Since Domain Time
is a critical system service, the evaluation version does not time out or stop
operating after the evaluation period has expired.   If you keep using the
software after the evaluation period expires, please register it.

------------------------------------------------------------------------------
                    S E T U P    I N S T R U C T I O N S 
------------------------------------------------------------------------------

   1.  Download the appropriate package for your distribution

       RedHat:        domtimed-2.5.b.20040405-RedHat.i386.rpm
       Mandrake:      domtimed-2.5.b.20040405-RedHat.i386.rpm
       SuSE:          domtimed-2.5.b.20040405-SuSE.i386.rpm
       TurboLinux:    domtimed-2.5.b.20040405-TurboLinux.i386.rpm
       Debian:        domtimed-2.5.b.20040405-Debian-i386.deb
       Stormix:       domtimed-2.5.b.20040405-Debian-i386.deb
       Slackware:     domtimed-2.5.b.20040405.tgz
       FreeBSD:       domtimed-2.5.b.20020422-FreeBSD.i386.tgz
       Solaris Intel: domtimed-2.5.b.20020422-SunOS-i386.pkg
       Solaris SPARC: domtimed-2.5.b.20020422-SunOS-sparc.pkg

   2.  For RPM-based systems (RedHat, Mandrake, SuSE, TurboLinux)

       Install:    rpm -i <filename>
       Remove:     rpm -e domtimed
       Upgrade:    rpm -U <filename>

       Substitute the name of your distribution file for <filename> in the
       above lines.

       You may also use gnorpm or kpackage if these tools are available on
       your system

   3.  For DEB-based systems (Debian, Stormix)

       Install:    dpkg -i domtimed-2.5.b.20040405-Debian-i386.deb
       Remove:     dpkg -r domtimed
       GUI Remove: Run dselect, choose domtimed and click remove
       Upgrade:    Remove, stop service and reinstall

       After installing or reinstalling, you will need to either manually
       start the service, or reboot the machine.

   4.  For FreeBSD

       Install:    pkg_add domtimed-2.5.b.20020422-FreeBSD.i386.tgz
       Remove:     pkg_delete domtimed
       Upgrade:    Remove and reinstall

   5.  For Solaris Intel

       Install:    pkgadd -d domtimed-2.5.b.20020422-SunOS-i386.pkg
       Remove:     pkgrm domtimed
       Upgrade:    Remove and reinstall

   6.  For Solaris Sparc

       Install:    pkgadd -d domtimed-2.5.b.20020422-SunOS-sparc.pkg
       Remove:     pkgrm domtimed
       Upgrade:    Remove and reinstall

   7.  For Slackware

       Install:    Run pkgtool
                   Choose "Install packages from the current directory"
                   Find domtimed on the list
                   Click OK

                   You may also use installpkg from the command line

       Remove:     Run pkgtool
                   Choose "Remove packages that are currently installed"
                   Find domtimed on the list
                   Click OK

                   You may also use removepkg from the command line

       Upgrade:    Remove and reinstall

   8.  For manual installation on any i386-based system

       a.  Copy domtimed-2.5.b.20040405.tgz to your system
       b.  Run tar -xzvf domtimed.tgz to unpack the files
       c.  Edit domtimed.conf as necessary for your network setup.
       d.  Put domtimed.conf in your /etc directory
       e.  Put the man pages in the appropriate man directories
       f.  Put domtimed and dtcheck in /usr/sbin or similar directory
       g.  Set domtimed to start automatically on boot after network is up
       h.  Start domtimed manually for now
       i.  Run dtcheck to test
       j.  Examine /var/log/domtimed.log for messages


  

Sample domtimed.conf File

#
# ----- description
#

' domtimed.conf - config file for Domain Time II daemon.  This file
' must be named /etc/domtimed.conf to be recognized by the daemon.

' daemon may be started from your rc files, or run (with root privs)
' on demand.  The daemon will continue running in the background
' until reboot or until killed manually.

' Values are read on startup.  Use kill -HUP to reload while the
' daemon is running.

' Blank lines and lines beginning with #, ; or ' are ignored.  Format
' for valid lines is keyword=value.  Comments may be added after any
' value by putting one or more spaces between the value and the comment

#
# ----- logging
#

' LogFileName is the name of our output file
' LogSize is the max size (in KB) for the log file
' LogLevel range is 0 to 4
'    0 = no log
'    1 = errors only
'    2 = errors and warnings only
'    3 = errors, warnings, and info
'    4 = debug

LogFile  = /var/log/domtimed.log	' name of log file
LogSize  = 64				' zero means no limit
LogLevel = 3				' loglevel

#
# ----- clock management
#

' If ManageClock is FALSE, the daemon will assume that some other
' process (xntp or similar) is taking care of clock corrections, so
' the daemon will NOT check or correct the clock, and will ignore
' the rest of the settings in this file.

' If ManageClock is TRUE, the daemon will use the settings in this
' file to check and correct this machine's clock.

' If ManageClock is TRUE, and TestMode is also TRUE, then the daemon
' will go through all the motions of managing the clock, but never
' actually change the time.  If TestMode is FALSE, then the daemon
' will change the system time as necessary.

ManageClock = True
TestMode    = False

#
# ----- auto discovery
#

AutoConfig         = True	' try to find a server
UseDHCP            = False	' check DHCP 042 and 004 for servers
AutoConfigFallback = True	' if discovery fails, use listed servers

#
# ----- DT2 compatibility
#

RespondToDTCheck       = True	' respond to DTCheck queries
IgnoreCascadeTriggers  = False	' don't sync on master/slave cascades
IgnoreAdvisoryTriggers = False	' don't sync on slave advisory triggers
HonorPulse             = True	' sync when DT2 heartbeat pulse seen

#
# ----- clock control
#

' MaxDisparity is always ignored on first timeset after startup, and
' when a directed sync signal is received (i.e., from DT Manager or
' DTCheck).  Otherwise MaxDisparity controls the maximum variance that
' will be corrected when domtimed checks the time on its own intiative.
' Setting MaxDisparity to zero means always accept any amount of
' correction.

' If AutoSchedule is TRUE, the SuccessInterval setting is taken as
' the maximum time to wait before checking again, and FailureInterval
' is taken as the minimum time.  AutoSchedule will pick a delay time
' between these two values appropriate to minimizing the amount of
' future corrections.

' If AutoSchedule is FALSE, the SuccessInterval and FailureInterval
' settings will be used as given.

' All settings are in seconds, except MinDisparity and MaxSlew, which
' are given in milliseconds.

' NOTE:  Most Linux machines cannot slew greater than half a second
' (500 milliseconds) reliably.  Solaris machines always set to the
' nearest second first, then slew up to half a second for the
' final correction.  Slewing can take a LONG time if the correction
' is greater than a quarter second or so.  Do not set the MaxSlew
' value above 250 without a really good reason, and do not set it
' above 499 unless you know your system can handle a slew that big. 

MaxDisparity    = 3600		' ignore corrections larger than this
MinDisparity    = 1		' ignore corrections smaller than this
MaxSlew         = 125		' slew if change is this amount or less
SuccessInterval = 7200		' if got the time, check again this often
FailureInterval = 60		' if couldn't get time, check again in
AutoSchedule    = True		' calculate SuccessInterval as necessary

#
# ----- servers to use
#

' These servers are used only if AutoConfig (see above) is FALSE, or
' if AutoConfig AND AutoConfigFallback are TRUE and auto-discovery
' could not find any servers to use.  Specify up to eight servers,
' in the form serverx=servername,protocol, where x is the number of
' the server (1 to 8), servername is the DNS name or IP number of a
' time server, and protocol is one of the following:
'
'    NTP        -- RFC 1769 NTP/SNTP protocol
'    DT2        -- Domain Time II protocol
'    TIME-UDP   -- RFC 868 using UDP
'    TIME-TCP   -- RFC 868 using TCP
'
' Servers will be used in the order listed, stopping after the first
' one that responds with a valid time.  Do not put any spaces or tabs
' around the comma separating the server name from the protocol!

Server1 = time.nist.gov,NTP
Server2 = clepsydra.dec.com,NTP
Server3 = tick.greyware.com,DT2
Server4 = tick.greyware.com,NTP
Server5 = tock.greyware.com,DT2
Server6 = tock.greyware.com,NTP
Server7 = 
Server8 =

#
# ----- end of domtimed.conf file
#

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