Deprecated security parameter in Oracle 12c: SEC_CASE_SENSITIVE_LOGON

Oracle states:

"The use of the Oracle instance initialization parameter SEC_CASE_SENSITIVE_LOGON is deprecated in favor of setting the SQLNET.ALLOWED_LOGON_VERSION_SERVER parameter to 12 to ensure that passwords are treated in a case-sensitive fashion.
Disabling password case sensitivity is not supported in Exclusive mode (when SQLNET.ALLOWED_LOGON_VERSION_SERVER is set to 12 or 12a.)

See this post for an example used during implementation

Documentation here

What do do when Oracle Universal Installer reports missing package pdksh-5.2.14 oracle

On RHEL 6, if you encounter situations where the OUI is complaining about the absence of a package pdksh-5.2.14 oracle, do the following:

1. Change directory to /database/stage/cvu/cv/admin 

2. Backup cvu_config: % cp cvu_config backup_cvu_config

3. Edit cvu_config and change the following line:

CV_ASSUME_DISTID=OEL4

to:

CV_ASSUME_DISTID=OEL6

4. Save the updated cvu_config file
5. Install the 11.2.0.3 or 11.2.0.4 software using /database/runInstaller

% cd /database
% ./runInstaller

When installing a 32-bit client like in my case, the OUI will warn that "all requirements have not been met".
This message can be ignored and you can proceed with the installation.
Source: MOS document ID 1454982.1

How to install the instant client from Oracle on a Linux application server

This is how I quite quickly installed sqlplus on a Linux appserver on request from my customer:

1. Download the two files

instantclient-basic-linux.x64-11.2.0.4.0.zip
instantclient-sqlplus-linux.x64-11.2.0.4.0.zip

from the otn network.


2. Create Directory for the installation files

mkdir  /u01/oracle/product/admin/install

3. Ftp the files over to the server

4. Put the installation files in the install Directory:

mv /tmp/instantclient*.zip /u01/oracle/product/admin/install

5. Unzip the files:

unzip instantclient-basic-linux.x64-11.2.0.4.0.zip -d /u01/oracle/product
unzip instantclient-sqlplus-linux.x64-11.2.0.4.0.zip -d /u01/oracle/product

The files will be unzipped to the Directory /u01/oracle/Product/instantclient_11_2

6. Create a Directory for networking:

mkdir $ORACLE_HOME/network/admin

7. set up the .bash_profile:

export ORACLE_BASE=/u01/oracle
export ORACLE_HOME=/u01/oracle/product/instantclient_11_2
export PATH=$PATH:$HOME/bin:$ORACLE_HOME
export LD_LIBRARY_PATH=/u01/oracle/product/instantclient_11_2
export NLS_LANG=NORWEGIAN_NORWAY.UTF8
export TNS_ADMIN=$ORACLE_HOME/network/admin

8. Create file tnsnames.ora, add an entry for each of the databases you'd like to Access via sqlplus.

All done!


Note that you do need *both* the basic and the sqlplus instantclient zip files to be unpacked into the same directory. If not, you will be missing Libraries in your installation and you'll receive the following error when launching sqlplus:

sqlplus: error while loading shared libraries: libclntsh.so.11.1: cannot open shared object file: No such file or Directory