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.
# a$ C, ~6 x$ c, @$ e" JECDSA key fingerprint is SHA256:JolsHOHD3RnNi4qOq5IGruOeA6kfJWjUltPjGePjZsA.
/ Y) `. g/ R- ?- g* K8 |! G& r& n8 L3 fECDSA key fingerprint is MD5:17:ba:bf:fd:f6:22:20:e5:72:f2:7f:41:5b:98:19:89.
- B1 |8 v4 ~2 x" b# ^Are you sure you want to continue connecting (yes/no)? yes
; a, L" r% j" W$ n7 MWarning: Permanently added 'controller02' (ECDSA) to the list of known hosts.
: v$ |/ b0 z7 M# NLast failed login: Wed May 31 09:46:42 CST 2023 from 192.168.21.29 on ssh:notty
- D2 P5 E; A- Q/ y! QThere were 18 failed login attempts since the last successful login.
Last login: Tue May 30 06:08:26 2023 from 192.168.21.129
+ S8 Z( Q+ [! m/ D9 E" n: J3 x. Q7 K
2 M% Z5 v2 j* o: t5 ^; a9 Y# 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
& A" s" e! Q5 ^, |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

, t$ z, w* o% s
2 i0 I  E, M2 d$ [
* A0 b# r9 ]% J5 S' U. Y[root@controller02 ~]# source /etc/pam.d/password-auth
- X. e: }+ w7 `-bash: auth: command not found
-bash: auth: command not found
5 K. y$ G* m# h( k  K, Z; U8 o-bash: auth: command not found
-bash: auth: command not found
1 [/ E' z; u2 ~# `- T1 j-bash: account: command not found
-bash: account: command not found
0 y& X) E* m# z: J. m-bash: 1000: No such file or directory
; K4 w; G% n% C( j-bash: account: command not found
, i% e/ P" c6 }' n+ _-bash: password: command not found
-bash: password: command not found
-bash: password: command not found
-bash: session: command not found
-bash: session: command not found
-bash: -session: command not found
: R1 o) T5 y8 _% c-bash: session: command not found
% Z1 L( }, E9 o-bash: session: command not found
[root@controller02 ~]# exit
; e1 D: a' T" V5 W; D9 Elogout
9 W0 v+ j/ x3 y7 OConnection to controller02 closed.
) C& G( V: Y* [; E( I7 h, G[root@controller03 ~]# ssh controller01
( }; F& m+ v6 P% Q* xLast login: Wed May 31 10:04:09 2023 from 192.168.21.29
* @' b, ]% d- ]# Z! @[root@controller01 ~]# source /etc/pam.d/password-auth
" D% f; ^# n% n- ~# H6 _-bash: auth: command not found
# y- n0 b. B) Q* H% W* \' i-bash: auth: command not found
-bash: auth: command not found
-bash: auth: command not found
( f( y8 O$ I6 M& I-bash: account: command not found
-bash: account: command not found
4 M9 q$ y% u9 v-bash: 1000: No such file or directory
. q' A$ i8 P3 W7 i-bash: account: command not found
-bash: password: command not found
4 N- n9 w9 R8 x% s-bash: password: command not found
-bash: password: command not found
-bash: session: command not found
" T: n3 a" l% O  Y( v% |& I-bash: session: command not found
- Y, D" \! F, ]# K-bash: -session: command not found
8 p7 b# w) r7 i( K3 k7 G/ g  S-bash: session: command not found
) G( T2 T: {( A-bash: session: command not found
[root@controller01 ~]#


4 c7 `2 d/ n& v) E: V7 q$ _+ N5 N最后通过source  /etc/pam.d/password-auth
文件后解决。