Oracle-XE Configuration failes.

I installed today Oracle XE on SUSE 11 and I got this error during configuration:


Database Configuration failed. Look into /u01/app/oracle/product/11.2.0/xe/config/log for details

In the files in /u01/app/oracle/product/11.2.0/xe/config/log

there were these errors:

ORA-00119: invalid specification for system parameter LOCAL_LISTENER
ORA-00130: invalid listener address '(ADDRESS=(PROTOCOL=TCP)(HOST=linux-jbzk.site)(PORT=1521))'


The problem was on my machine the hostname was not pingeable.

Solution:

Add your current hostname (output of echo $HOSTNAME) to your /etc/hosts file

For example if your hostname is linuxbox :


127.0.0.1    linuxbox


Then you can re-run the oracle configuration:

/etc/init.d/oracle-xe configure


Source
https://community.oracle.com/

The Most Difficult Program to Compute? Meet the Ackermann function

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How to change bash prompt to red when you are root

To change your bash shell prompt to red when you became root,  do the following:

• login as root
• vi ~/.bashrc
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 That's it!

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Here some references I find useful when it comes to code optimizations in C++

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•  Some very well written guides : http://www.agner.org/optimize  A must read!

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A really useful reading! A bit old but still highly valuable!

http://www.over-yonder.net/~fullermd/rants/bsd4linux/01