Suggested Hint File
We have suggested using the standard output from the command;
dig . ns @ns1.opennic.glue
This then makes way for a simple cron job task to update the file on a regular basis.
; <<>> DiG 9.3.4-P1 <<>> . ns @ns1.opennic.glue ; (1 server found) ;; global options: printcmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 64976 ;; flags: qr aa rd ra; QUERY: 1, ANSWER: 7, AUTHORITY: 0, ADDITIONAL: 7 ;; QUESTION SECTION: ;. IN NS ;; ANSWER SECTION: . 518400 IN NS ns1.opennic.glue. . 518400 IN NS ns2.opennic.glue. . 518400 IN NS ns5.opennic.glue. . 518400 IN NS ns6.opennic.glue. . 518400 IN NS ns7.opennic.glue. . 518400 IN NS ns21.opennic.glue. . 518400 IN NS ns22.opennic.glue. ;; ADDITIONAL SECTION: ns1.opennic.glue. 14400 IN A 206.225.16.60 ns2.opennic.glue. 14400 IN A 216.87.84.214 ns5.opennic.glue. 14400 IN A 128.177.28.254 ns6.opennic.glue. 14400 IN A 207.192.71.13 ns7.opennic.glue. 14400 IN A 66.244.95.11 ns21.opennic.glue. 14400 IN A 58.6.115.46 ns22.opennic.glue. 14400 IN A 58.6.115.45