<http://en.wikipedia.org/wiki/NTP_server_misuse_and_abuse>
[email protected] wrote: > Is there a suggested way to rate-limit queries by broken clients? Firewall rules? {Depends how broken the remote client is, sometimes this makes them hammer more, if you can get you ISP to block them at the ISP's end, at least it won't cost you bandwidth. Use a unique subdomain for your ntp server, so you can make it resolve to something else, or not resolve if needed. > Are there any other techniques people have found to be helpful? <https://manage.ntppool.org/manage/servers> Set connection Speed set it to something lower, 384K? and wait _many_ weeks then redo your statistics. restrict -4 default limited kod nomodify notrap nopeer noquery restrict 127.0.0.1 restrict -6 default limited kod nomodify notrap nopeer noquery restrict ::1 restrict 224.0.1.1 mask 255.255.255.255 nomodify restrict aa.bb.cc.dd mask ww.xx.yy.zz nomodify # your LAN restrict source nomodify -- E-Mail Sent to this address <[email protected]> will be added to the BlackLists. _______________________________________________ questions mailing list [email protected] http://lists.ntp.org/listinfo/questions
