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author | Xin LI <delphij@FreeBSD.org> | 2016-11-22 06:28:26 +0000 |
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committer | Xin LI <delphij@FreeBSD.org> | 2016-11-22 06:28:26 +0000 |
commit | 01b922f62c559f5778a983c365d390371956a214 (patch) | |
tree | 049e28a52b171cc5b8e7de3275014490471d9eeb /ntpd/ntp.conf.mdoc.in | |
parent | 6f73e3f459be43eacfd7662c4e59fba1a872de0e (diff) | |
download | src-test2-01b922f62c559f5778a983c365d390371956a214.tar.gz src-test2-01b922f62c559f5778a983c365d390371956a214.zip |
Notes
Diffstat (limited to 'ntpd/ntp.conf.mdoc.in')
-rw-r--r-- | ntpd/ntp.conf.mdoc.in | 23 |
1 files changed, 21 insertions, 2 deletions
diff --git a/ntpd/ntp.conf.mdoc.in b/ntpd/ntp.conf.mdoc.in index a9a342418c95..ea6fe4e64d5b 100644 --- a/ntpd/ntp.conf.mdoc.in +++ b/ntpd/ntp.conf.mdoc.in @@ -1,9 +1,9 @@ -.Dd June 2 2016 +.Dd November 21 2016 .Dt NTP_CONF 5 File Formats .Os .\" EDIT THIS FILE WITH CAUTION (ntp.mdoc) .\" -.\" It has been AutoGen-ed June 2, 2016 at 07:36:16 AM by AutoGen 5.18.5 +.\" It has been AutoGen-ed November 21, 2016 at 08:02:03 AM by AutoGen 5.18.5 .\" From the definitions ntp.conf.def .\" and the template file agmdoc-cmd.tpl .Sh NAME @@ -1995,6 +1995,25 @@ At the same time, the manycast scheme starts all over from the beginning and the expanding ring shrinks to the minimum and increments from there while collecting all servers in scope. +.Ss Broadcast Options +.Bl -tag -width indent +.It Xo Ic tos +.Oo +.Cm bcpollbstep Ar gate +.Oc +.Xc +This command provides a way to delay, +by the specified number of broadcast poll intervals, +believing backward time steps from a broadcast server. +Broadcast time networks are expected to be trusted. +In the event a broadcast server's time is stepped backwards, +there is clear benefit to having the clients notice this change +as soon as possible. +Attacks such as replay attacks can happen, however, +and even though there are a number of protections built in to +broadcast mode, attempts to perform a replay attack are possible. +This value defaults to 0, but can be changed +to any number of poll intervals between 0 and 4. .Ss Manycast Options .Bl -tag -width indent .It Xo Ic tos |