My time server setup

Introduction

All pcs in my lan run the NTP daemon reference implementation. The one connect to the 'outside' (the one with the internet connection) can be reached using the NTP protocol as well as the standard 'daytime' (13) and 'time' (37) TCP ports on address ntp.vanheusden.com. It is also part of the NTP pool - a project which tries to deliver a trustworthy to all computers on the internet.

The setup

Hardware

pc 1 ('mauer') serving time to the internet:
- Intel quadcore running at 2.4GHz
- Intel DG965WH motherboard
- Internet connection: Intel Corporation 82566DC gigabit ethernet adapter (integrated in motherboad)
- Connection to LAN: National Semiconductor Corporation DP83820 10/100/1000 ethernet adapter
- DCF77 receiver by Gude (Expert mouseCLOCK), connected via an Timedia Technology Co Ltd PCI2S550 (Dual 16550 UART) RS232 board
pc 2 ('belle') on the LAN:
- Intel dual core running at 2.4GHz
- Gigabyte Technology 965G-DS3 motherboard
- LAN connection: Realtek Semiconductor Co., Ltd. RTL-8169 gigabit ethernet adapter
- Garmin 18 LVC GPS module connected via RS232
pc 1 and 2 are connected to the internet via a 20Mb (down)/1Mb (up) ADSL connection (via a SpeedTouch 546 version 5.2.7.19.0), connection inbetween is a 3com (consumer) gigabit switch
the third pc ('thegate') syncs to the internet via the neighbour's internet-connection
- VIA Nehemiah at 1GHz
- EPIA-M motherboard
- LAN connection: VIA Technologies, Inc. VT6102 [Rhine-II], connects to pc 1 and 2 via an Linksys WRT54G set-up as router (no NAT!)
- WiFi connection Texas Instruments ACX 111 54Mbps (connection to neighbour)
- MSF receiver (USB version) by Lindy (Lindy Precision Clock, I developer a driver for NTP which can be found here)

All pcs are peering to each other.

Software

What upstream servers has each host?

pc 1:
- [0-3].nl.pool.ntp.org
- ntp[2].xs4all.nl (time server of ISP)
- ntp0.nl.uu.net
- chime1.surfnet.nl
- ntp.remco.org
pc 2:
- [0-3].nl.pool.ntp.org
- ntp[2].xs4all.nl (time server of ISP)
- ntp1.nl.uu.net
- chime2.surfnet.nl
pc 3 (internet connection via different ISP!):
- [0-3].nl.pool.ntp.org
- ntp.xs4all.nl
- ntp2.nl.uu.net
- chime3.surfnet.nl

Statistics

generic NTP daemon statistics
Follow this link to see the current statistics of pc 1.
www.pool.ntp.org statistics
These can be viewed here.
graphs

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April 17, 2008	Please support Seti@Home