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# Sample /etc/ntp.conf: Configuration file for ntpd. |
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# |
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# Undisciplined Local Clock. This is a fake driver intended for backup |
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# and when no outside source of synchronized time is available. The |
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# default stratum is usually 3, but in this case we elect to use stratum |
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# 0. Since the server line does not have the prefer keyword, this driver |
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# is never used for synchronization, unless no other other |
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# synchronization source is available. In case the local host is |
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# controlled by some external source, such as an external oscillator or |
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# another protocol, the prefer keyword would cause the local host to |
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# disregard all other synchronization sources, unless the kernel |
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# modifications are in use and declare an unsynchronized condition. |
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# |
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server 127.127.1.0 # local clock |
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fudge 127.127.1.0 stratum 10 |
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|
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# |
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# NTP server (list one or more) to synchronize with: |
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server 0.pool.ntp.org iburst |
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server 1.pool.ntp.org iburst |
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server 2.pool.ntp.org iburst |
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server 3.pool.ntp.org iburst |
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|
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# |
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# Drift file. Put this in a directory which the daemon can write to. |
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# No symbolic links allowed, either, since the daemon updates the file |
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# by creating a temporary in the same directory and then rename()'ing |
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# it to the file. |
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# |
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driftfile /etc/ntp/drift |
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|
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# |
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# Uncomment to use a multicast NTP server on the local subnet: |
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#multicastclient 224.0.1.1 # listen on default 224.0.1.1 |
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# Set an optional compensation for broadcast packet delay: |
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#broadcastdelay 0.008 |
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|
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# |
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# Keys file. If you want to diddle your server at run time, make a |
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# keys file (mode 600 for sure) and define the key number to be |
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# used for making requests. |
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# PLEASE DO NOT USE THE DEFAULT VALUES HERE. Pick your own, or remote |
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# systems might be able to reset your clock at will. |
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# |
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#keys /etc/ntp/keys |
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#trustedkey 65535 |
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#requestkey 65535 |
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#controlkey 65535 |
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|
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# |
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# Don't serve time or stats to anyone else by default (more secure) |
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restrict default limited kod nomodify notrap nopeer noquery |
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restrict -6 default limited kod nomodify notrap nopeer noquery |
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|
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# |
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# Use these lines instead if you do want to serve time and stats to |
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# other machines on the network: |
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#restrict default limited kod nomodify notrap nopeer |
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#restrict -6 default limited kod nomodify notrap nopeer |
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|
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# |
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# Disable the ntpdc -c monlist command, which is insecure and can be used |
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# to cause a denial of service attack (CVE-2013-5211). Future versions of |
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# NTP will remove this command. |
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# (this feature was disabled by default with ntpd 4.2.7p230) |
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disable monitor |
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|
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# |
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# Trust ourselves. :-) |
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restrict 127.0.0.1 |
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restrict ::1 |
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@ -0,0 +1,72 @@ |
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# Sample /etc/ntp.conf: Configuration file for ntpd. |
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# |
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# Undisciplined Local Clock. This is a fake driver intended for backup |
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|
# and when no outside source of synchronized time is available. The |
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|
# default stratum is usually 3, but in this case we elect to use stratum |
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|
# 0. Since the server line does not have the prefer keyword, this driver |
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|
# is never used for synchronization, unless no other other |
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|
# synchronization source is available. In case the local host is |
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|
# controlled by some external source, such as an external oscillator or |
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|
# another protocol, the prefer keyword would cause the local host to |
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# disregard all other synchronization sources, unless the kernel |
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|
# modifications are in use and declare an unsynchronized condition. |
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# |
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server 127.127.1.0 # local clock |
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fudge 127.127.1.0 stratum 10 |
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|
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# |
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# NTP server (list one or more) to synchronize with: |
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#server 0.pool.ntp.org iburst |
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#server 1.pool.ntp.org iburst |
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#server 2.pool.ntp.org iburst |
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#server 3.pool.ntp.org iburst |
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|
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# |
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# Drift file. Put this in a directory which the daemon can write to. |
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# No symbolic links allowed, either, since the daemon updates the file |
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# by creating a temporary in the same directory and then rename()'ing |
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# it to the file. |
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# |
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driftfile /etc/ntp/drift |
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|
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# |
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# Uncomment to use a multicast NTP server on the local subnet: |
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#multicastclient 224.0.1.1 # listen on default 224.0.1.1 |
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# Set an optional compensation for broadcast packet delay: |
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#broadcastdelay 0.008 |
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|
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# |
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# Keys file. If you want to diddle your server at run time, make a |
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|
# keys file (mode 600 for sure) and define the key number to be |
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|
# used for making requests. |
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|
# PLEASE DO NOT USE THE DEFAULT VALUES HERE. Pick your own, or remote |
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|
# systems might be able to reset your clock at will. |
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# |
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#keys /etc/ntp/keys |
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#trustedkey 65535 |
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#requestkey 65535 |
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#controlkey 65535 |
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|
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# |
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# Don't serve time or stats to anyone else by default (more secure) |
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restrict default limited kod nomodify notrap nopeer noquery |
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restrict -6 default limited kod nomodify notrap nopeer noquery |
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|
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# |
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# Use these lines instead if you do want to serve time and stats to |
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# other machines on the network: |
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#restrict default limited kod nomodify notrap nopeer |
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#restrict -6 default limited kod nomodify notrap nopeer |
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|
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# |
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# Disable the ntpdc -c monlist command, which is insecure and can be used |
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# to cause a denial of service attack (CVE-2013-5211). Future versions of |
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# NTP will remove this command. |
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# (this feature was disabled by default with ntpd 4.2.7p230) |
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disable monitor |
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|
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# |
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# Trust ourselves. :-) |
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restrict 127.0.0.1 |
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restrict ::1 |
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Loading…
Reference in new issue