ntp-4.2.4p6@vegas-v2-o-win32 命令解释文本
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NTP Cheat Sheet : ntpd Configuration File
Unicast Modes
Time Servers:
server <ip/hostname> [options]
Symmetric Active Peers:
peer <ip/hostname> [options]
[options] can be one or more of the
following flags:
iburst initial burst, speed up
initial synchronization
minpoll x change minimum or
maxpoll x maximum polling interval to
2^x seconds:
4=16s, 5=32s, 6=64s,
7=128s, 8=256s, 9=512s,
10=1024s, 11=2048s,
12=4096s, 13=8192s,
14=16384s, 15=32768s,
16=65536s, 17=131072s
prefer preferred source
key n use symmetric key
number n
autokey use autokey with this source
noselect only monitor, never use as
sync source
true always consider this source
being a truechimer
Broadcast / Multicast
Modes
IANA assigned NTP multicast address:
224.0.1.1 (IPv4) / ff05::101 (IPv6)
Send out broadcast/multicast packets:
broadcast <bcast/mcast ip> [options]
[options] can be
autokey, key n ( see left)
ttl Time To Live, number of
max.router hops the
packets should be
forwarded (default=127)
Listen to NTP broadcast packets:
broadcastclient [novolley]
novolley do not measure network
delay (uni-directional
mode)
Listen to NTP multicast packets
multicastclient <mcast ip>
Useful Weblinks
http://www.ntp.org - Official NTP Website
http://support.ntp.org/ - Support Web
http://www.meinberg.de - Meinberg Website
http://www.time-server-monitor.com - free NTP
Monitor Utlility
Generate Statistics
Enable Statistics Collection:
enable stats
Select statistics files to be generated:
stats [space separated list of stats]
List of availabile stats:
clockstats clock statistics
cryptostats crypto public key stats
loopstats loop filter statistics
peerstats peer statistics
rawstats raw timestamps info
sysstats ntpd statistics
Select where to create statistics files:
statsdir <directory path>
Filename management:
filegen <name> [file fname] [type
ftype] [link | nolink] [enable | disable]
name is the name of the stats
type (e.g. clockstats)
fname fixed part of filename
ftype can be either
none=single plain file
pid=process id in the
filename
day/week/month/year=one
file per day/week/...
age=new file every 24hrs
link create hardlink to current
file
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aahjw2013-12-17不错的软件
