[time] Request volume
Dennis Hilberg Jr
Mon Aug 13 18:03:34 UTC 2007
Jorijn Schrijvershof wrote:
> Thanks for the information, I didn't have the time to read the whole
> thread but managed to do the first 20 ones. As I understanded T?rk
> Telekom only has servers from Europa in its routers, whilst
> ntp.jorijn.com is located in the northern of America. Currently the
> firewall is still in its default settings which is a limit of 10 new UDP
> connections per second. This with a burst rate of 60.
> As normally I will monitor the system for any strange activity again. If
> so I'll compare the hosts and check from which subnet they are.
> If find out they are all unique, or totally random it would be a matter
> of changing the security of my server.
> Kind regards, Jorijn.
> timekeepers mailing list
> timekeepers at fortytwo.ch
My ntp server is in the North American zone, but still receives the TT
clients. In fact, when my server gets listed in the global pool, the huge
traffic spikes I get are mostly TT clients.
Be prepared for fairly large traffic spikes if your server is listed in the
global pool, as my last two have pushed 60,000 clients at over 200
requests/sec. Fortunately my server doesn't seem to get those too often.
My server usually sees spikes in the range 30,000-40,000 clients and 100-125
or so requests/sec.
Dennis Hilberg Jr <timekeeper at dennishilberg.com>
NTP Server Information: http://saturn.dennishilberg.com/ntp.php
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