Running with an Oncore GPS & a TAPR TAC. If I "ntpdate -b" a nearby
synchronized server before I start ntpd, the offsets initially look
pretty
good:
[]
Is there anything I can do to decrease the convergence time?
Peter,
Are you using a drift file, and allowing it to get a good value for th
Bill wrote:
> Possibly chrony. Except that the "price" of faster convergence is vastly
> improved accuracy and just as stable as NTPD.
> But it only runs on Linux or bsd, not windows.
You have a very interesting view of the world. As best as I can tell,
you live in a world with really bad clocks
On 2011-11-29, Richard B. Gilbert wrote:
> On 11/29/2011 1:42 PM, Pete Ashdown wrote:
>> Running with an Oncore GPS& a TAPR TAC. If I "ntpdate -b" a nearby
>> synchronized server before I start ntpd, the offsets initially look pretty
>> good:
>>
>> remote refid st t when pol
On 2011-11-29, Rich wrote:
> USNO is seeing an apparent coordinated denial of service attack on NTP
> originating with the following IPs:
> 220.117.53.67; 218.92.115.152; 114.40.28.224; 218.201.21.194. I
> recommend that you block 220.0.0.0/8, 218.0.0.0/8, and 114.0.0.0/8.
> There will likely b
On 11/29/2011 03:44 PM, Rich wrote:
> USNO is seeing an apparent coordinated denial of service attack on NTP
> originating with the following IPs:
> 220.117.53.67; 218.92.115.152; 114.40.28.224; 218.201.21.194. I
> recommend that you block 220.0.0.0/8, 218.0.0.0/8, and 114.0.0.0/8.
> There will l
NTP DoS Alert:
USNO now recommends additionally blocking 221.0.0.0/8 for all
services. This is the source of continuing NTP DoS on Nov. 29,2011.
This address space is owned by Data Communication Bureau Shandong, No.
77 Jingsan Road,Jinan,Shandong,P.R.China.
Richard Schmidt
Time Service Department
On 11/29/2011 1:42 PM, Pete Ashdown wrote:
Running with an Oncore GPS& a TAPR TAC. If I "ntpdate -b" a nearby
synchronized server before I start ntpd, the offsets initially look pretty
good:
remote refid st t when poll reach delay offset jitter
===
On 11/29/2011 4:57 PM, Rich wrote:
>
>> Isn't that a bit wide a range to block for only 4 IPs?
>> What makes you think any further attacks will come from the same range?
>>
> Only my 17 years experience at the stratum 1 level. I see little
> value in providing NTP to Asian Pacific networks from W
> Isn't that a bit wide a range to block for only 4 IPs?
> What makes you think any further attacks will come from the same range?
>
Only my 17 years experience at the stratum 1 level. I see little
value in providing NTP to Asian Pacific networks from Washington, DC.
___
Rich wrote:
> USNO is seeing an apparent coordinated denial of service attack on NTP
> originating with the following IPs:
> 220.117.53.67; 218.92.115.152; 114.40.28.224; 218.201.21.194. I
> recommend that you block 220.0.0.0/8, 218.0.0.0/8, and 114.0.0.0/8.
> There will likely be more to follow
Is this message authoritative? Blocking three /8s seems like using a
sledgehammer to open a nugget to me...
Il 29/11/2011 21:44, Rich ha scritto:
> USNO is seeing an apparent coordinated denial of service attack on NTP
> originating with the following IPs:
> 220.117.53.67; 218.92.115.152; 114.40.2
USNO is seeing an apparent coordinated denial of service attack on NTP
originating with the following IPs:
220.117.53.67; 218.92.115.152; 114.40.28.224; 218.201.21.194. I
recommend that you block 220.0.0.0/8, 218.0.0.0/8, and 114.0.0.0/8.
There will likely be more to follow. These appear to origi
Running with an Oncore GPS & a TAPR TAC. If I "ntpdate -b" a nearby
synchronized server before I start ntpd, the offsets initially look pretty
good:
remote refid st t when poll reach delay offset jitter
=
"Richard B. Gilbert" wrote in message
news:nvcdnzujwblps0ntnz2dnuvz_gkdn...@giganews.com...
[]
Do you guys ever do anything else?
I expect that all countries havae similar exercises, but unannounced.
Some may even open jamming up to a commercial venture like
lightsquared
Mind you, even
On 11/29/2011 7:15 AM, David J Taylor wrote:
Folks,
I have received the following:
__
NOTIFICATION OF GPS JAMMING EXERCISES
RAF SPADEADAM, CUMBRIA, MARCH 2012
Dates: Between the 5th of March to the 9th of March 2012 inclusive.
Times: 0800 -1800 GMT.
Lo
Folks,
I have received the following:
__
NOTIFICATION OF GPS JAMMING EXERCISES
RAF SPADEADAM, CUMBRIA, MARCH 2012
Dates: Between the 5th of March to the 9th of March 2012 inclusive.
Times: 0800 -1800 GMT.
Location of MULTIPLE jammers: based within 5km
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