Exadata修改sshd密码验证方式 延迟10分钟关闭 明明密码对了却登录不上

如果你的Exadata明明密码对了，却登录不上，不要着急因为Exadata输入一次密码错误会锁定10分钟。

进入目录修改配置文件

[root@cwztdb01 ~]# cd /etc/pam.d/
[root@cwztdb01 pam.d]# ls
chfn         fingerprint-auth  password-auth     remote     serviceconf     sshd              sudo-i          system-config-services
chsh         login             password-auth-ac  runuser    smartcard-auth  sssd-shadowutils  su-l            systemd-user
config-util  other             polkit-1          runuser-l  smtp            su                system-auth     vlock
crond        passwd            postlogin         screen     smtp.sendmail   sudo              system-auth-ac

[root@cwztdb01 pam.d]# vi sshd 
#%PAM-1.0
auth       required     pam_sepermit.so
auth       substack     password-auth
auth       include      postlogin
# auth       required     pam_tally2.so deny=5 onerr=fail lock_time=600 serialize -->注释掉这里
# Used with polkit to reauthorize users in remote sessions
-auth      optional     pam_reauthorize.so prepare
# EXADATA ACCESS CONTROL via /etc/exadata/security/exadata-access.conf
account    required    pam_access.so accessfile=/etc/exadata/security/exadata-access.conf
account    required     pam_nologin.so
account    include      password-auth
account    required     pam_tally2.so
password   include      password-auth
# pam_selinux.so close should be the first session rule
session    required     pam_selinux.so close
session    required     pam_loginuid.so
# pam_selinux.so open should only be followed by sessions to be executed in the user context
session    required     pam_selinux.so open env_params
session    required     pam_namespace.so
session    optional     pam_keyinit.so force revoke
session    include      password-auth
session    include      postlogin
# Used with polkit to reauthorize users in remote sessions
-session   optional     pam_reauthorize.so prepare
session    required     pam_limits.so

#重启sshd
[root@cwztdb01 pam.d]#/bin/systemctl restart sshd.service 


#同样的如果通过ilom登录你需要将login也修改了

[root@cwztdb01 ~]# cd /etc/pam.d/

[root@cwztdb01 pam.d]# vi login

# auth       required     pam_tally2.so deny=5 onerr=fail lock_time=600 serialize -->注释掉这里


#如果你的用户已经被锁住了，恰好你又还有一个ssh窗口。
[root@dm03db01 ~]# pam_tally2
Login Failures Latest failure From
ora112 4 04/07/18 19:46:10 dm03db02.corp.haier.com
oemagent 36 05/31/18 08:33:17 dm03db02.corp.haier.com
patrol 2 05/06/18 20:54:50 hrctxapp5.corp.haier.com

移除锁定用户：
[root@dm03db01 ~]# pam_tally2 -r -u oemagent
Login Failures Latest failure From
oemagent 36 05/31/18 08:33:17 dm03db02.corp.haier.com

#另外我建议你把grid、oracle的密码策略修改一下,否则你60天就要修改一次密码了　

[root@cwztdb01 ~]# 　chage -m 0 -M 99999 -E -1 grid

　[root@cwztdb01 ~]# 　chage -m 0 -M 99999 -E -1 oracle

 

 

 

 

 

 

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