[root@localhost ~]# su - oracle [oracle@localhost ~]$ sqlplus / as sysdba; SQL*Plus: Release 11.2.0.3.0 Production on Fri Jul 13 22:22:59 2018 Copyright (c) 1982, 2011, Oracle. All rights reserved. Connected to: Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - Production With the Partitioning, OLAP, Data Mining and Real Application Testing options SYS@orcl> select instance_name ,status from v$instance; INSTANCE_NAME STATUS ---------------- ------------ orcl OPEN SYS@orcl> quit Disconnected from Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - Production With the Partitioning, OLAP, Data Mining and Real Application Testing options [oracle@localhost ~]$ exit logout [root@localhost ~]# who am i root pts/10 2018-07-13 22:22 (192.168.242.1) [root@localhost ~]# useradd oracleexternal [root@localhost ~]# passwd oracleexternal Changing password for user oracleexternal. New UNIX password: Retype new UNIX password: passwd: all authentication tokens updated successfully. [root@localhost ~]# su - oracleexternal [oracleexternal@localhost ~]$ cat .bash_profile # .bash_profile # Get the aliases and functions if [ -f ~/.bashrc ]; then . ~/.bashrc fi # User specific environment and startup programs PATH=$PATH:$HOME/bin export PATH [oracleexternal@localhost ~]$ vi .bash_profile # .bash_profile # Get the aliases and functions if [ -f ~/.bashrc ]; then . ~/.bashrc fi # User specific environment and startup programs PATH=$PATH:$HOME/bin export PATH export ORACLE_SID=orcl export ORACLE_BASE=/u01/app/oracle export ORACLE_HOME=$ORACLE_BASE/product/11.2.0/db_1 export PATH=$PATH:$ORACLE_HOME/bin export ORACLE_TERM=xterm export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:$ORACLE_HOME/lib export CLASSPATH=$ORACLE_HOME/JRE:ORACLE_HOME/jlib:$ORACLE_HOME/rdbms/jlib ~ ~ ~ ~ ~ ~ ".bash_profile" 20L, 479C written [oracleexternal@localhost ~]$ cat .bash_profile # .bash_profile # Get the aliases and functions if [ -f ~/.bashrc ]; then . ~/.bashrc fi # User specific environment and startup programs PATH=$PATH:$HOME/bin export PATH export ORACLE_SID=orcl export ORACLE_BASE=/u01/app/oracle export ORACLE_HOME=$ORACLE_BASE/product/11.2.0/db_1 export PATH=$PATH:$ORACLE_HOME/bin export ORACLE_TERM=xterm export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:$ORACLE_HOME/lib export CLASSPATH=$ORACLE_HOME/JRE:ORACLE_HOME/jlib:$ORACLE_HOME/rdbms/jlib [oracleexternal@localhost ~]$ source .bash_profile [oracleexternal@localhost ~]$ su - oracle Password: [oracle@localhost ~]$ rlwrap sqlplus / as sysdba; SQL*Plus: Release 11.2.0.3.0 Production on Fri Jul 13 22:25:45 2018 Copyright (c) 1982, 2011, Oracle. All rights reserved. Connected to: Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - Production With the Partitioning, OLAP, Data Mining and Real Application Testing options SYS@orcl> show parameter os NAME TYPE VALUE ------------------------------------ ----------- ------------------------------ db_lost_write_protect string NONE diagnostic_dest string /u01/app/oracle optimizer_index_cost_adj integer 100 os_authent_prefix string ops$ os_roles boolean FALSE remote_os_authent boolean FALSE remote_os_roles boolean FALSE timed_os_statistics integer 0 SYS@orcl> create user ops$oracleexternal identified externally; User created. SYS@orcl> grant create session to ops$oracleexternal; Grant succeeded. SYS@orcl> quit Disconnected from Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - Production With the Partitioning, OLAP, Data Mining and Real Application Testing options [oracle@localhost ~]$ exit logout [oracleexternal@localhost ~]$ who am [oracleexternal@localhost ~]$ whoami oracleexternal [oracleexternal@localhost ~]$ sqlplus / SQL*Plus: Release 11.2.0.3.0 Production on Fri Jul 13 22:27:16 2018 Copyright (c) 1982, 2011, Oracle. All rights reserved. Connected to: Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - Production With the Partitioning, OLAP, Data Mining and Real Application Testing options OPS$ORACLEEXTERNAL@orcl> OPS$ORACLEEXTERNAL@orcl> set time on; 22:29:13 OPS$ORACLEEXTERNAL@orcl>