Differences
This shows you the differences between two versions of the page.
ntp [2009/05/25 00:35] 127.0.0.1 external edit |
ntp [2014/06/27 10:33] |
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- | ipv6 ntp pool - eu.ntp.sixxs.net | + | === OpenNTP === |
+ | |||
+ | ipv6 ntp pool - eu.ntp.sixxs.net\\ | ||
+ | \\ | ||
+ | |||
+ | ubuntu/ | ||
+ | ln -s / | ||
+ | |||
+ | === NTP === | ||
+ | |||
+ | ==== Setup Restrict values in '' | ||
+ | **see:** [[http:// | ||
+ | |||
+ | Modify the ''/ | ||
+ | |||
+ | < | ||
+ | # Permit time synchronization with our time source, but do not | ||
+ | # permit the source to query or modify the service on this system. | ||
+ | restrict default kod nomodify notrap nopeer noquery | ||
+ | restrict -6 default kod nomodify notrap nopeer noquery | ||
+ | </ | ||
+ | |||
+ | The first restrict line allows other clients to query your time server. This restrict line has the following parameters | ||
+ | |||
+ | * noquery prevents dumping status data from ntpd. | ||
+ | * notrap prevents control message trap service. | ||
+ | * nomodify prevents all ntpq queries that attempts to modify the server. | ||
+ | * nopeer prevents all packets that attempts to establish a peer association. | ||
+ | * Kod – Kiss-o-death packet is to be sent to reduce unwanted queries | ||
+ | |||
+ | The value -6 in the second line allows forces the DNS resolution to the IPV6 address resolution. For more information on the access parameters list, Please refer to documentation on “man ntp_acc” |