算不算良心功能
$ curl -v github.com
* About to connect() to github.com port 80 (#0)
* Trying 10.23.253.91...
* Connected to github.com (10.23.253.91) port 80 (#0)
> GET / HTTP/1.1
> User-Agent: curl/7.29.0
> Host: github.com
> Accept: */*
>
< HTTP/1.1 301 Moved Permanently
< Content-Length: 0
< Location: https://github.com/
<
* Connection #0 to host github.com left intact
$ dig github.com
; <<>> DiG 9.9.4-RedHat-9.9.4-61.el7_5.1 <<>> github.com
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 32946
;; flags: qr rd ad; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 0
;; WARNING: recursion requested but not available
;; QUESTION SECTION:
;github.com. IN A
;; ANSWER SECTION:
github.com. 600 IN A 10.23.253.91
;; Query time: 2 msec
;; SERVER: 10.23.255.1#53(10.23.255.1)
;; WHEN: Wed Sep 28 10:56:49 CST 2022
;; MSG SIZE rcvd: 44
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