67 lines
2.2 KiB
Plaintext
67 lines
2.2 KiB
Plaintext
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#
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# /etc/ntp/ntp.conf: ntp configuration
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#
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###############################################################################
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# Default paths
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logfile /var/log/ntp.log
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pidfile /var/run/ntp/ntpd.pid
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driftfile /var/lib/ntp/ntp.drift
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#statsdir /var/lib/ntp/stats/
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###############################################################################
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# Authentication stuff
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#
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# keys /etc/ntp/ntp.keys # path for keys file
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# trustedkey 1 2 3 4 5 6 14 15 # define trusted keys
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# requestkey 15 # key (7) for accessing server variables
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# controlkey 15 # key (6) for accessing server variables
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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.
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server 127.127.1.0 # local clock (LCL)
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fudge 127.127.1.0 stratum 10 # LCL is unsynchronized
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## Generic DCF77 clock on serial port (Conrad DCF77)
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## Address: 127.127.8.u
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## Serial Port: /dev/refclock-u
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## Sample project: http://www.obbl-net.de/dcf77.html by Martin Opel
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##
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## u = Number of your serial port
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##
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## (create soft link /dev/refclock-0 to the particular ttyS?)
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##
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# server 127.127.8.0 mode 5 prefer
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###############################################################################
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# Specify the servers you are interested in
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server ntps1-0.cs.tu-berlin.de prefer
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server ntps1-1.cs.tu-berlin.de
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server ntp1.ptb.de
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server ntp1.fau.de
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###############################################################################
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# Then we restrict the type of access you allow these servers.
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# Were not allowing them to modify or query our Linux NTP server
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restrict default ignore notrust nomodify notrap
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restrict 127.0.0.1
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#restrict <YOUR_IP_HERE>
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restrict ntps1-0.cs.tu-berlin.de mask 255.255.255.255 nomodify notrap noquery
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restrict ntps1-1.cs.tu-berlin.de mask 255.255.255.255 nomodify notrap noquery
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restrict ntp1.ptb.de mask 255.255.255.255 nomodify notrap noquery
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restrict ntp1.fau.de mask 255.255.255.255 nomodify notrap noquery
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# Now list the NTP clients on our home network which should be able to query
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# our server for the time (notice that the noquery has been removed)
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#restrict 192.168.0.0 mask 255.255.255.0
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# End of file
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