curl 方式获取端口是否正常curl -v参数探测22端口

admin

curl -v 10.16.68.32:22
* Rebuilt URL to: 10.16.68.32:22/
*   Trying 10.16.68.32...
* d& v, x4 j7 `: q  L7 X* TCP_NODELAY set
* Connected to 10.16.68.32 (10.16.68.32) port 22 (#0)
; [2 m. r! u; Q2 e0 o: B; _, ~' A> GET / HTTP/1.1
) U/ ]8 O, B1 x- k> Host: 10.16.68.32:22
> User-Agent: curl/7.61.1
/ v! @# |) i9 s0 l: v> Accept: */*
" u- r2 o* x- J) q" o  M2 |( C>
% a) a% }. e' ^$ c% r4 uSSH-2.0-OpenSSH_8.0
Invalid SSH identification string.
* Recv failure: Connection reset by peer
& O( o. b! c# @: Q$ F: j' F9 T* Closing connection 0
curl: (56) Recv failure: Connection reset by peer

* E+ G  ~% D6 c7 F! z

admin

curl -v 10.16.68.5:5901
* Rebuilt URL to: 10.16.68.5:5901/
*   Trying 10.16.68.5...
1 N$ M9 n! S( P* TCP_NODELAY set
* Connected to 10.16.68.5 (10.16.68.5) port 5901 (#0)
> GET / HTTP/1.1
% X  ]9 o, R8 c. T$ L0 n> Host: 10.16.68.5:5901
> User-Agent: curl/7.61.1
4 w1 R& o. D1 a1 P7 c/ y8 i> Accept: */*
0 W: |0 `5 a  ^" Y>
) f5 ?5 F" n2 r2 ]RFB 003.008
* Closing connection 0

! f% s) }; d% j; l! J这个方式可以验证没有安装telnet时探测端口是否正常安装得问题。

admin

curl 加上--interface 参数，以及-v参数 达到预想结果。
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# j: H# x0 f2 B/ U) F% g& jcurl --interface ens7 -v 10.16.68.5:5901

. G* o! t" q  z. N8 I) p* Rebuilt URL to: 10.16.68.5:5901/
1 a" p. g4 }7 T% a8 a1 m*   Trying 10.16.68.5...
+ @2 i$ A* B: _2 W' s+ B* TCP_NODELAY set
0 ~- h! i' _6 {! t/ u  T1 z9 V7 x* Connected to 10.16.68.5 (10.16.68.5) port 5901 (#0)
5 u3 y+ ], ~+ S8 B' Z) i> GET / HTTP/1.1
" s4 A7 a) c& z  a5 z  d> Host: 10.16.68.5:5901
> User-Agent: curl/7.61.1
> Accept: */*
>
, y* l: z% Q: K" z; aRFB 003.008
, T+ E/ ^% }# N  H* Closing connection 0