Dns
Table of Contents
1 Introduction
We can use dig to obtain data about DNS servers:
dig gnu.org ; <<>> DiG 9.16.42-Debian <<>> gnu.org ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 43493 ;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 1 ;; OPT PSEUDOSECTION: ; EDNS: version: 0, flags:; udp: 4096 ;; QUESTION SECTION: ;gnu.org. IN A ;; ANSWER SECTION: gnu.org. 1796 IN A 209.51.188.116 ;; Query time: 4 msec ;; SERVER: 192.168.1.1#53(192.168.1.1) ;; WHEN: Wed Aug 16 19:53:27 BST 2023 ;; MSG SIZE rcvd: 52