$ ntpq -pn remote refid st t when poll reach delay offset jitter ============================================================================== +210.173.160.27 133.243.236.17 2 - 440 1024 377 27.810 -0.782 0.427 +210.173.160.57 133.243.236…

Dec 22 07:09:31 ns kernel: Packet log: input DENY ppp0 PROTO=6 212.171.56.12:21 210.138.41.6:21 L=40 S=0x00 I=10062 F=0x0000 T=103 SYN (#34) Dec 22 13:32:31 ns kernel: Packet log: input DENY ppp0 PROTO=6 211.106.98.121:2723 210.138.41.6:33…