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Red Hat Bugzilla – Attachment 301340 Details for
Bug 229217
enhancing ntp support
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Script to find nearby timeservers from us.pool.ntp.org by pinging
find-nearby-timeservers (text/plain), 683 bytes, created by
archimerged Ark submedes
on 2008-04-04 20:56:20 UTC
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Description:
Script to find nearby timeservers from us.pool.ntp.org by pinging
Filename:
MIME Type:
Creator:
archimerged Ark submedes
Created:
2008-04-04 20:56:20 UTC
Size:
683 bytes
patch
obsolete
>#!/bin/bash >for nameserver in '' @208.67.220.220 @208.67.222.222; do > for n in '' 0. 1. 2.; do > dig $nameserver +short ${n}us.pool.ntp.org > done >done |\ > sort -u |\ > while read ip; do > ping -qnc 4 $ip |\ > tee -a /dev/stderr > done |\ > egrep 'statis|rtt' |\ > sed 's/\nrtt/ /'|\ > tr \\n \ |\ > sed -e 's/---[ 0-9.a-z]*--- ---/---/g;'\ > -e 's: ping statistics --- rtt min/avg/max/mdev = : :g;'\ > -e 's/--- //;'\ > -e 's/ ms[- ]*/\n/g;'\ > -e 's:/: :g' |\ > while read ip min avg max mdev; do > printf "%17s %9s %9s %9s %9s\n" $ip $min $avg $max $mdev > done |\ > sort -n --key 3,3n > nearby-timeservers-$(date --iso=sec)
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