.+ CNR-CSTV * F. Pollastri * sntpconf.txt.uk * 19960304 .-
----------------------------------------------------------
SUGGESTIONS FOR SNTP CONFIGURATION
To configure SNTP for Windows for Workgroups, Windows 95 or
Windows NT on a PC, it is sufficient to follow these suggestions and,
of course, to read the SNTP built-in help.
1. Preliminaries
a. Configuration of TCP/IP on the PC on which SNTP is to be installed.
b. Connection of the PC to Internet with Full Node functionality.
c. Reachability through Internet of the NTP server on which to synchronize.
d. Installation of file bwcc.dll or bwcc32.dll as indicated in readme.txt
file of SNTP.
2. Configuration
a. To start automatically SNTP, put its icon into the start windows of Windows.
The SNTP shareware version available from Internet at each start open a
window calling for OK. The registered version, no.
b. In the following window (the main window) it must be set:
- NTP Server "aaa.bbb.ccc"
Internet address of the NTP server on which to synchronize, e.g.
"tempo.cstv.to.cnr.it" for the CSTV server. It is also possible to
use the numerical address, but it is discouraged because it changes more
frequently than the symbolic address.
- Initial Poll "60"
Initial interval in seconds used by SNTP to query the server.
60 works well in almost cases. SNTP automatically measures
the drift of the PC in comparison with the server and extends the
polling interval to the maximum amplitude (but no more than 16 times
the initial interval) that allows to keep the PC time offset from the
server below the error specified by the Max Delta parameter.
This way of working allows a rapid initial convergence of the PC time
to the server time and keeps the network traffic to a minimum.
- Max Delta "100"
Maximum error in milliseconds between PC time and reference server time.
c. Pushing the key Set TZ, the configuration window of the time zone opens,
where it needs to be set:
Time zone
- Standard Name CET (for Italy)
Name of the time zone. For Italy it is CET (Central Europe mean Time).
- Daylight Saving Name CES (for Italy)
Name of the day-light saving time. For Italy it is CEST (Central Europe
Summer Time). Unfortunately, SNTP accepts only 3 letters (a bug).
- Offset from UTC -01:00 (for Italy)
Difference from UTC time (approximately UTC = GMT mean time
of Greenwich meridian). For Italy it is -1.
Start of Daylight Savings Time (for Italy)
- Ordinal last
- Day of week Sunday
- Month March
- Time 02:00
End of Daylight Savings Time (for Italy)
- Ordinal last
- Day of Week Sunday
- Month October
- Time 03:00
Lazy people can leave blank the start/end parameters of day-light
saving time and change the offset from UTC, setting -01:00 for normal
time and -02:00 for day-light saving time. Remember to repeat this
operation at each change of time.
Close the window giving OK.
d. A NTP server query can be manually forced pushing
the Set Time key in the main window.
e. If the difference of time between the PC and the server is too great
SNTP do not adjust the PC time.
In this case, the PC time must be roughly adjusted with the DOS time
command or from the control panel of Windows, differences of tens of
minutes are tolerated. Then push the Set Time key in the main window
to verify the PC time adjustment.
----------------------------------------------------------
.+ CNR-CSTV * F. Pollastri * sntpconf.txt.it * 19950907 .-
How to
configure SNTP