The ntpq utility program is used to monitor NTP daemon ntpd operations and determine performance. The program can be run either in interactive mode or controlled using command line arguments. Type the following command:
$ ntpq -pn ntp.4network.eu
ntp.4network.eu
remote refid st t when poll reach delay offset jitter
==============================================================================
#204.2.134.164 204.2.134.162 3 u 238 1024 377 185.977 0.415 7.099
-138.236.128.112 18.26.4.105 2 u 42 1024 377 123.400 1.895 1.691
-38.229.71.1 204.123.2.72 2 u 589 1024 377 124.355 5.031 1.320
*134.226.81.3 .GPS. 1 u 163 1024 377 12.422 0.175 3.552
-193.0.71.133 212.244.36.228 2 u 286 1024 377 73.360 4.239 2.494
-198.123.30.132 .GPS. 1 u 824 1024 377 179.881 9.097 4.242
+80.50.231.226 .ATOM. 1 u 917 1024 377 51.067 0.670 4.920
+217.96.29.26 .ATOM. 1 u 312 1024 377 53.215 0.389 0.814
-91.189.94.4 193.79.237.14 2 u 296 1024 377 30.870 5.167 2.027
+131.188.3.221 .DCFp. 1 u 390 1024 377 66.069 2.353 2.582
-193.1.219.116 .PPS. 1 u 923 1024 377 11.893 2.986 4.136
#216.239.32.15 149.48.60.162 2 u 484 1024 377 40.224 -6.111 3.703
#216.239.34.15 21.68.183.109 2 u 926 1024 377 35.171 -3.976 3.364