I am making available some Windows network tools that I have developed for my own use.
Purely amateur use of these programs is free of
charge, but use of these programs for any commercial or for-profit purposes requires
registration. If you like these programs, and wish to say "Thank you", or if
you want technical support, you can register my Network Tools,
or by sending me an Amazon Gift Certificate here:
Your ISP offers you 30MB of disk space, but doesn't tell you how much space is used! This tool enables you to get a usage piechart from your FTP service, showing which directories are taking the most space, and to drill down into those directories to see which are the largest files. Simply double-click on a pie segment to drill down!
FTPpie is recommended by Blueyonder (UK broadband ISP, now Virgin Media), and works on Linux under WINE.
V1.4.0 approximate folder space occupied as well, trap potential error with UNIX servers, don't require separate run-time library
Download FTPpie V1.4.0 (254,275 bytes; 2008 Dec 30)
Simply enter your user details and click on the Open site button:
and you will see the program working to retrieve your Web space usage details. Please note that the site name and directory details will be different for your ISP. Once the program has finished, a pie-chart like the one below will be displayed, and you can double-click on a directory to drill down and see its contents. This makes it very easy to clear out the maximum space with the minimum effort!
Blueyonder Users Update
For the recently released PWP2 service you will specify your address differently. Your old FTP upload address was: www.<aliasname>.pwp.blueyonder.co.uk, but instead you should now use: ftp.pwp.blueyonder.co.uk and enter your <aliasname> and <password> in the site details dialog.
This program allows you to compare your PC clock with a number of external sources. You may have an Internet or GPS time service, but is your PC accurately synchronised to those sources, and how do they compare with one another? For the most accurate synchronisation, your PC needs an NTP client, which will connect to an NTP service on the Internet. Perhaps your ISP already provides such a service?
Download NTP monitor
V5.1.6 (252,912 bytes; 2013-Dec-25)
If you find the NTP Monitor useful, you can "thanks" by registering my Network Tools Suite here. Registration is mandatory for commercial use.
Screen-shot from an earlier version:
The clocks have four hands displaying the offset:
Version 5 of the NTP monitor adds the ability to see trends over several hours by plotting a graph of the offsets against time. These offset can either be relative to the local PC clock, or compared to a more accurate reference source. The program allows you to filter the display in two ways, to improve the visibility of trend information:
Download NTP Plotter -
Small program to check whether your NTP is detecting a leap-second flag, and if so, from where. My thanks to Dave Hart for suggesting the commands required to extract the leap-second data. The program needs write-access to the directory where it is copied, to write a temporary file, so for Windows-7 I suggest installing in a fresh directory such as C:\Tools\NTP\
Note: please ensure that the ntpq.exe program is available from the path where the program is run, as the program relies on executing the ntpq command and interpreting its output.
Download NTP Leap Trace beta - revised 2009-Jun-21
For those of you running FreeBSD or Linux, or if you prefer a program with the source you can inspect, here's a version very kindly provided by Terje Mathisen from Norway.
Download NTP Leap Trace
in Perl, by Terje Mathisen
- revised 2013-Jan-04
On a typical day, with one rogue indication showing....
Sample command-line output
C:\Utilities\NTP> NTPLeapTracer pixie NTP server: pixie, no leap second pending associd=0 status=24a4 leap_none, sync_36, 10 events, freq_mode, version="ntpd 4.2.4p5-a (1)", processor="i386", system="FreeBSD/8.0-RELEASE", leap=00, stratum=1, precision=-18, rootdelay=0.000, rootdispersion=0.438, peer=52348, refid=PPS, reftime=d2ddf158.2a1fc980 Thu, Feb 9 2012 7:16:40.164, poll=4, clock=d2ddf165.2e8d955a Thu, Feb 9 2012 7:16:53.181, state=4, offset=0.004, frequency=27.681, jitter=0.004, noise=0.002, stability=0.011, tai=0 AssID: 52348 - no leap AssID: 52349 - no leap AssID: 52350 - no leap AssID: 52351 - no leap AssID: 52352 - no leap AssID: 52353 - no leap C:\Utilities\NTP>
and from the current program, when a leap second is due:
C:\Utilities\NTP>NTPLeapTracer.exe puffin NTP server: puffin *** leap second is pending *** associd=0 status=4618 leap_add_sec, sync_ntp, 1 event, no_sys_peer, version="ntpd firstname.lastname@example.org Nov 21 15:37:28.73 (UTC-00:00) 2016 (1)", processor="x86-SSE2", system="Windows", leap=01, stratum=2, precision=-22, rootdelay=0.172, rootdisp=3.023, refid=192.168.0.20, reftime=dc11d83b.ef56c5ab Sat, Dec 31 2016 7:09:47.934, clock=dc11d851.74fee590 Sat, Dec 31 2016 7:10:09.457, peer=25449, tc=5, mintc=3, offset=0.361515, frequency=-11.365, sys_jitter=0.007593, clk_jitter=0.112, clk_wander=0.013 AssID: 25449 - leap indicated from: leoNTP AssID: 25450 - leap indicated from: pixie AssID: 25451 - leap indicated from: raspi-13 AssID: 25453 - leap indicated from: greenore.zeip.eu AssID: 25454 - no leap (ntp1.warwicknet.com) AssID: 25455 - leap indicated from: 249.34.213.162.lcy-01.canonistack.canonical.com AssID: 25456 - leap indicated from: 184.108.40.206.lcy-02.canonistack.canonical.com AssID: 25457 - leap indicated from: armcd.co.uk AssID: 25458 - leap indicated from: designinfo.ru
During a recent period of GPS jamming I needed to discover which of my nodes was affected. It seems that nodes with antennas away from the street were slightly less affected (no, I couldn't see any unusual vehicles). I wrote a DOS script to check both my Raspberry Pi flock, and some named Windows and Linux nodes. The idea was to detect those node claiming PPS sync and list them with the output from the appropriate line from an ntpq -pn. There is a common subroutine, called with two different sets of node names, one for the Raspberry Pi cards (RasPi1..RasPi14) and again for named nodes (in the set nodes= command). The set node=%node:~-8% command ensures that the displayed node name is padded to make it a constanst width, so that the NTPQ columns line up as expected.
Sample results when almost everything was working again, except for RasPi-3 which I had disturbed! Stands out, doesn't it?
Small program to show the resolution (granularity) of the different system time calls on Windows, and the speed or otherwise of some of the calls. Unsupported - questions here.
Download PCClockTiming - update 2009 Dec 05
Windows XP system - mmTimer enabled
Windows Vista system
Simple program to show the state of the serial port LEDs. Intended for watching the pulses on the DCD line from a pulse-per-second GPS used for NTP.
Please note: If you are using Windows for NTP with a PPS signal, the DCD line must flash briefly on, not be mostly on flashing briefly off as inverting the PPS signal is not supported by the Windows NTP port.
Download SerialPortLEDs - updated 2014-Jan-01