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get a domain name ipv6 address

neo created at1 month ago view count: 7
ping -6 www.google.com

result:

PING www.google.com(nrt12s28-in-x04.1e100.net (2404:6800:4004:810::2004)) 56 data bytes
64 bytes from nrt12s28-in-x04.1e100.net (2404:6800:4004:810::2004): icmp_seq=1 ttl=119 time=0.617 ms

or using dig command

dig -6 www.google.com

result:

; <<>> DiG 9.16.33-Debian <<>> -6 www.google.com
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 24074
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 1

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 1232
;; QUESTION SECTION:
;www.google.com.            IN  A

;; ANSWER SECTION:
www.google.com.     170 IN  A   142.250.196.100

;; Query time: 4 msec
;; SERVER: 2001:19f0:300:1704::6#53(2001:19f0:300:1704::6)
;; WHEN: Wed Nov 09 03:23:20 UTC 2022
;; MSG SIZE  rcvd: 59

ping

ping

uses the ICMP protocol's mandatory ECHO_REQUEST datagram to elicit an ICMP ECHO_RESPONSE from a host or gateway. ECHO_REQUEST datagrams ("pings") have an IP and ICMP header, followed by a struct timeval and then an arbitrary number of "pad" bytes used to fill out the packet.

ping works with both IPv4 and IPv6. Using only one of them explicitly can be enforced by specifying -4 or -6.

ping can also send IPv6 Node Information Queries (RFC4620). Intermediate hops may not be allowed, because IPv6 source routing was deprecated (RFC5095).  

dig

dig

is a flexible tool for interrogating DNS name servers. It performs DNS lookups and displays the answers that are returned from the name server(s) that were queried. Most DNS administrators use dig to troubleshoot DNS problems because of its flexibility, ease of use and clarity of output. Other lookup tools tend to have less functionality than dig.

Although dig is normally used with command-line arguments, it also has a batch mode of operation for reading lookup requests from a file. A brief summary of its command-line arguments and options is printed when the -h option is given. Unlike earlier versions, the BIND 9 implementation of dig allows multiple lookups to be issued from the command line.

Unless it is told to query a specific name server, dig will try each of the servers listed in /etc/resolv.conf. If no usable server addresses are found, dig will send the query to the local host.

When no command line arguments or options are given, dig will perform an NS query for "." (the root).

It is possible to set per-user defaults for dig via ${HOME}/.digrc. This file is read and any options in it are applied before the command line arguments.

The IN and CH class names overlap with the IN and CH top level domain names. Either use the -t and -c options to specify the type and class, use the -q the specify the domain name, or use "IN." and "CH." when looking up these top level domains.  

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