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标签归档:触发器 密码错误
触发器找出密码错误应用
经常会遇到修改oracle业务用户密码之后,由于部分应用密码没有被正确修改(忘记修改,或者修改错误了),导致数据库被hang或者用户被锁的情况,对于这样的情况,通过一个logon触发器可以快速找到
create or replace trigger logon_denied_to_alert after servererror on database declare message varchar2(120); IP varchar2(15); v_os_user varchar2(80); v_module varchar2(50); v_action varchar2(50); v_pid varchar2(10); v_sid number; v_username varchar2(50); v_suser varchar2(50); begin IF (ora_is_servererror(1017)) THEN if sys_context('userenv', 'network_protocol') = 'tcp' then IP := sys_context('userenv', 'ip_address'); else select distinct sid into v_sid from sys.v_$mystat; SELECT p.SPID into v_pid FROM V$PROCESS p, V$SESSION v WHERE p.ADDR = v.PADDR AND v.sid = v_sid; end if; v_os_user := sys_context('userenv', 'os_user'); v_username := sys_context('userenv', 'CURRENT_USER'); v_suser := SYS_CONTEXT('USERENV','SESSION_USER'); dbms_application_info.READ_MODULE(v_module, v_action); message := to_char(sysdate, 'Dy Mon dd HH24:MI:SS YYYY') || ' logon denied from '||v_username||' '||v_suser||' '|| nvl(IP, v_pid) || ' ' || v_os_user || ' with ' || v_module || ' ' || v_action; sys.dbms_system.ksdwrt(2, message); end if; end; /
测试
SQL> create user test identified by oracle; User created. SQL> grant dba to test; Grant succeeded.
直接本地登录
SQL> conn test/test ERROR: ORA-01017: invalid username/password; logon denied Warning: You are no longer connected to ORACLE. ---alert日志记录 Wed Nov 01 23:15:04 2023 logon denied from SYS 12886 oracle with sqlplus@iZbp1hx0enix3hix1kvyrxZ (TNS V1-V3)
通过tns登录
SQL> conn test/oracl1@172.27.54.81:1522/orcl ERROR: ORA-01017: invalid username/password; logon denied Warning: You are no longer connected to ORACLE. ---alert日志报错 Wed Nov 01 23:31:51 2023 logon denied from SYS 172.27.54.81 oracle with sqlplus@iZbp1hx0enix3hix1kvyrxZ (TNS V1-V3)