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HomeDatabaseMysql TutorialOracle 用户经常被锁原因

在登陆时被告知test用户被锁 1、用dba角色的用户登陆,进行解锁,先设置具体时间格式,以便查看具体时间 SQL alter session set nls_date_format='yyyy-mm-dd hh24:mi:ss'; Session altered. 2、查看具体的被锁时间 SQL select username,lock_date from dba_

在登陆时被告知test用户被锁

  1、用dba角色的用户登陆,进行解锁,先设置具体时间格式,以便查看具体时间

  SQL> alter session set nls_date_format='yyyy-mm-dd hh24:mi:ss';

  Session altered.

  2、查看具体的被锁时间

  SQL> select username,lock_date from dba_users where username='TEST';

  USERNAME                       LOCK_DATE

  ------------------------------ -------------------

  TEST                       2009-03-10 08:51:03

  3、解锁

  SQL> alter user test account unlock;

  User altered.

  4、查看是那个ip造成的test用户被锁

  查看$ORACLE_HOME/network/admin/log/listener.log日志

  10-MAR-2009 08:51:03 * (CONNECT_DATA=(SID=lhoms)(SERVER=DEDICATED)(CID=(PROGRAM=oracle)(HOST=omstestdb)(USER=oraoms))) * (ADDRESS=(PROTOCOL=tcp)(HOST=10.69.1.11)(PORT=49434)) * establish * lhoms * 0

  10-MAR-2009 08:51:03 * (CONNECT_DATA=(SID=lhoms)(SERVER=DEDICATED)(CID=(PROGRAM=oracle)(HOST=omstestdb)(USER=oraoms))) * (ADDRESS=(PROTOCOL=tcp)(HOST=10.69.1.11)(PORT=49435)) * establish * lhoms * 0

  这样可知是上面10.69.1.11的ip尝试多次失败登陆造成的被锁

  注:

  一般数据库默认是10次尝试失败后锁住用户

  1、查看FAILED_LOGIN_ATTEMPTS的值

  select * from dba_profiles

  2、修改为30次

  alter profile default limit FAILED_LOGIN_ATTEMPTS 30;

  3、修改为无限次(为安全起见,不建议使用)

  alter profile default limit FAILED_LOGIN_ATTEMPTS unlimited;

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