There were 18 failed login attempts since the last successful login.Failed passw

admin

The authenticity of host 'controller02 (172.24.21.202)' can't be established.
! e6 g- d' r7 _1 s; TECDSA key fingerprint is SHA256:JolsHOHD3RnNi4qOq5IGruOeA6kfJWjUltPjGePjZsA.
9 H1 m, B" d4 |: o, n0 cECDSA key fingerprint is MD5:17:ba:bf:fd:f6:22:20:e5:72:f2:7f:41:5b:98:19:89.
3 \, l+ Z' W4 p. \( [% d+ QAre you sure you want to continue connecting (yes/no)? yes
1 u6 [" J5 g# T5 dWarning: Permanently added 'controller02' (ECDSA) to the list of known hosts.
Last failed login: Wed May 31 09:46:42 CST 2023 from 192.168.21.29 on ssh:notty
There were 18 failed login attempts since the last successful login.
Last login: Tue May 30 06:08:26 2023 from 192.168.21.129

: q/ w  n" L5 i1 S" s4 E2 a3 P+ T# cat /var/log/secure |grep "Failed password for "
May 31 09:36:17 controller02 sshd[298653]: Failed password for root from 192.168.21.29 port 9488 ssh2
May 31 09:36:45 controller02 sshd[298653]: Failed password for root from 192.168.21.29 port 9488 ssh2
May 31 09:36:46 controller02 sshd[298653]: Failed password for root from 192.168.21.29 port 9488 ssh2

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. V( b7 }- H9 y- {- [[root@controller02 ~]# source /etc/pam.d/password-auth
' [+ X+ ~- f6 D; a8 v0 V-bash: auth: command not found
7 v/ B0 x% e  T. Z5 G6 U; X& W-bash: auth: command not found
-bash: auth: command not found
-bash: auth: command not found
-bash: account: command not found
" l. r+ S& N) u-bash: account: command not found
-bash: 1000: No such file or directory
-bash: account: command not found
-bash: password: command not found
0 Y" t4 Z! ?; p& l, b) S4 N! l  u-bash: password: command not found
-bash: password: command not found
8 h: @1 e2 w8 V4 L3 w& O-bash: session: command not found
-bash: session: command not found
-bash: -session: command not found
! g  {  W, T( B6 M-bash: session: command not found
-bash: session: command not found
( m; y, X2 ]1 P! q% F[root@controller02 ~]# exit
  J( C3 q: y* I: _% A0 ulogout
Connection to controller02 closed.
[root@controller03 ~]# ssh controller01
Last login: Wed May 31 10:04:09 2023 from 192.168.21.29
: z" |) h6 @4 [1 Q[root@controller01 ~]# source /etc/pam.d/password-auth
" i0 Z6 [, j' h-bash: auth: command not found
; [* T2 [/ Z4 {' {-bash: auth: command not found
7 e1 \/ q8 D6 }) ?-bash: auth: command not found
  v0 k4 F' D# a: L-bash: auth: command not found
7 W# v* K$ `  {-bash: account: command not found
7 j& a% q! O# s: a' a1 h-bash: account: command not found
1 w* j+ {$ [5 O-bash: 1000: No such file or directory
% Q  R# U# J  g: e& [$ e! G+ ^-bash: account: command not found
-bash: password: command not found
-bash: password: command not found
-bash: password: command not found
$ o6 h) N2 D7 Z-bash: session: command not found
' `5 ?6 \$ [2 Q9 M# X0 F-bash: session: command not found
' k  N2 ]# f2 @4 o8 {9 L-bash: -session: command not found
-bash: session: command not found
2 x7 C" K3 x: m-bash: session: command not found
[root@controller01 ~]#
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最后通过source  /etc/pam.d/password-auth
文件后解决。
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