oracle db install on OL6

# yum install oracle-rdbms-server-11gR2-preinstall
#yum update
#passwd oracle

#vi /etc/security/limits.d/90-nproc.conf"

# Change this * soft nproc 1024 # To this * - nproc 16384

chkconfig iptables off

editing the "/etc/selinux/config" file

SELINUX=permissive

groupadd oinstall
useradd -g oinstall oracle
mkdir -p /u01

chown -R oracle:oinstall /u01

restart the server

install DB

alter system set open_cursors=500 scope=both;

alter system set processes=500 scope=spfile;
shutdown immediate;
startup;