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All arguments must be options.
ntpd(8)
reads its keys from a file specified using the
The key file uses the same comment conventions as the configuration file. Key entries use a fixed format of the form
where keyno is a positive integer (between 1 and 65535), type is the message digest algorithm, key is the key itself, and opt_IP_list is an optional comma-separated list of IPs where the keyno should be trusted. that are allowed to serve time. Each IP in opt_IP_list may contain an optional /subnetbits specification which identifies the number of bits for the desired subnet of trust. If opt_IP_list is empty, any properly-authenticated message will be accepted.
The key may be given in a format controlled by the type field. The type MD5 is always supported. If ntpd was built with the OpenSSL library then any digest library supported by that library may be specified. However, if compliance with FIPS 140-2 is required the type must be either SHA or SHA1.
What follows are some key types, and corresponding formats:
MD5 |
The key is 1 to 16 printable characters terminated by
an EOL,
whitespace,
or
a
#
(which is the "start of comment" character).
|
SHA
SHA1 RMD160 | |
The key is a hex-encoded ASCII string of 40 characters, which is truncated as necessary. | |
Note that the keys used by the ntpq(8) and ntpdc(8) programs are checked against passwords requested by the programs and entered by hand, so it is generally appropriate to specify these keys in ASCII format.
| Display usage information and exit. |
| Pass the extended usage information through a pager. |
| Output version of program and exit. The default mode is `v', a simple version. The `c' mode will print copyright information and `n' will print the full copyright notice. |
NTP_KEYS_<option-name> or NTP_KEYS
/etc/ntp.keys | |
the default name of the configuration file | |
0 (EXIT_SUCCESS) | Successful program execution. |
1 (EXIT_FAILURE) | The operation failed or the command syntax was not valid. |
70 (EX_SOFTWARE) | libopts had an internal operational error. Please report it to autogen-users@lists.sourceforge.net. Thank you. |
This manual page was AutoGen-erated from the ntp.keys option definitions.
SunOS 5.10 | NTP_KEYS (5) | August 14 2018 |
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