[root@jjangwani123 ~]# yum -y install binutils-*
[root@jjangwani123 ~]# yum -y install compat-db-*
[root@jjangwani123 ~]# yum -y install control-center-*
[root@jjangwani123 ~]# yum -y install gcc-*
[root@jjangwani123 ~]# yum -y install gcc-c++-*
[root@jjangwani123 ~]# yum -y install glibc-*
[root@jjangwani123 ~]# yum -y install glibc-common-*
[root@jjangwani123 ~]# yum -y install gnome-libs-*
[root@jjangwani123 ~]# yum -y install libstdc++-*
[root@jjangwani123 ~]# yum -y install libstdc++-*
[root@jjangwani123 ~]# yum -y install make-*
[root@jjangwani123 ~]# yum -y install pdksh-*
[root@jjangwani123 ~]# yum -y install sysstat-*
[root@jjangwani123 ~]# yum -y install xscreensaver-*

[root@jjangwani123 ~]# groupadd oinstall
groupadd: 그룹 oinstall이(가) 이미 존재합니다
[root@jjangwani123 ~]# groupadd dba
groupadd: 그룹 dba이(가) 이미 존재합니다
[root@jjangwani123 ~]# useradd -m -g oinstall -G dba oracle
useradd: 사용자 oracle이(가) 이미 존재합니다
[root@jjangwani123 ~]# passwd oracle
Changing password for user oracle.
New UNIX password: 
Retype new UNIX password: 
passwd: all authentication tokens updated successfully.
[root@jjangwani123 ~]# mkdir /oracle
mkdir: `/oracle' 디렉토리를 만들 수 없습니다: 파일이 존재합니다
[root@jjangwani123 ~]# chown -R oracle.dba /oracle
[root@jjangwani123 ~]# chmod -R 755 /oracle

[root@jjangwani123 ~]# cat /etc/sysctl.conf
# Kernel sysctl configuration file for Red Hat Linux
#
# For binary values, 0 is disabled, 1 is enabled.  See sysctl(8) and
# sysctl.conf(5) for more details.

# Controls IP packet forwarding
net.ipv4.ip_forward = 0

# Controls source route verification
net.ipv4.conf.default.rp_filter = 1

# Do not accept source routing
net.ipv4.conf.default.accept_source_route = 0

# Controls the System Request debugging functionality of the kernel
kernel.sysrq = 0

# Controls whether core dumps will append the PID to the core filename
# Useful for debugging multi-threaded applications
kernel.core_uses_pid = 1

# Controls the use of TCP syncookies
net.ipv4.tcp_syncookies = 1

# Controls the maximum size of a message, in bytes
kernel.msgmnb = 65536

# Controls the default maxmimum size of a mesage queue
kernel.msgmax = 65536

# Controls the maximum shared segment size, in bytes
kernel.shmmax = 68719476736

# Controls the maximum number of shared memory segments, in pages
kernel.shmall = 4294967296

[root@jjangwani123 ~]# /sbin/sysctl -p
net.ipv4.ip_forward = 0
net.ipv4.conf.default.rp_filter = 1
net.ipv4.conf.default.accept_source_route = 0
kernel.sysrq = 0
kernel.core_uses_pid = 1
net.ipv4.tcp_syncookies = 1
kernel.msgmnb = 65536
kernel.msgmax = 65536
kernel.shmmax = 68719476736
kernel.shmall = 4294967296
kernel.shmmni = 4096
fs.aio-max-nr = 1048576
fs.file-max = 6815744
kernel.sem = 250 32000 100 128
net.ipv4.ip_local_port_range = 9000  65500
net.core.rmem_default = 262144
net.core.rmem_max = 4194304
net.core.wmem_default = 262144
net.core.wmem_max = 1048586
kernel.msgmni = 2878

[root@jjangwani123 ~]# cat /etc/security/limits.conf
# /etc/security/limits.conf
#
#Each line describes a limit for a user in the form:
#
#<domain>        <type>  <item>  <value>
#
#Where:
#<domain> can be:
#        - an user name
#        - a group name, with @group syntax
#        - the wildcard *, for default entry
#        - the wildcard %, can be also used with %group syntax,
#                 for maxlogin limit
#
#<type> can have the two values:
#        - "soft" for enforcing the soft limits
#        - "hard" for enforcing hard limits
#
#<item> can be one of the following:
#        - core - limits the core file size (KB)
#        - data - max data size (KB)
#        - fsize - maximum filesize (KB)
#        - memlock - max locked-in-memory address space (KB)
#        - nofile - max number of open files
#        - rss - max resident set size (KB)
#        - stack - max stack size (KB)
#        - cpu - max CPU time (MIN)
#        - nproc - max number of processes
#        - as - address space limit
#        - maxlogins - max number of logins for this user
#        - maxsyslogins - max number of logins on the system
#        - priority - the priority to run user process with
#        - locks - max number of file locks the user can hold
#        - sigpending - max number of pending signals
#        - msgqueue - max memory used by POSIX message queues (bytes)
#        - nice - max nice priority allowed to raise to
#        - rtprio - max realtime priority
#
#<domain>      <type>  <item>         <value>
#

#*               soft    core            0
#*               hard    rss             10000
#@student        hard    nproc           20
#@faculty        soft    nproc           20
#@faculty        hard    nproc           50
#ftp             hard    nproc           0
#@student        -       maxlogins       4

[root@jjangwani123 ~]# cat /etc/pam.d/login
#%PAM-1.0
auth [user_unknown=ignore success=ok ignore=ignore default=bad] pam_securetty.so
auth       include      system-auth
account    required     pam_nologin.so
account    include      system-auth
password   include      system-auth
# pam_selinux.so close should be the first session rule
session    required     pam_selinux.so close
session    optional     pam_keyinit.so force revoke
session    required     pam_loginuid.so
session    include      system-auth
session    optional     pam_console.so
# pam_selinux.so open should only be followed by sessions to be executed in the user context
session    required     pam_selinux.so open

# -------------------------------------------------
# oracle 11gR2 Setting

# -------------------------------------------------
session required /lib/security/pam_limits.so

# -------------------------------------------------

[root@jjangwani123 ~]# cat /home/oracle/.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

# -------------------------------------------------
# oracle 11gR2 Setting

# -------------------------------------------------
ORACLE_BASE=/oracle; export ORACLE_BASE
ORACLE_HOME=/oracle/11g; export ORACLE_HOME
ORACLE_SID=ora11g; export ORACLE_SID
PATH=$PATH:$ORACLE_HOME/bin

# export PATH

# -------------------------------------------------

[root@jjangwani123 ~]# cat /etc/sysconfig/vncservers
# The VNCSERVERS variable is a list of display:user pairs.
#
# Uncomment the lines below to start a VNC server on display :2
# as my 'myusername' (adjust this to your own).  You will also
# need to set a VNC password; run 'man vncpasswd' to see how
# to do that.  
#
# DO NOT RUN THIS SERVICE if your local area network is
# untrusted!  For a secure way of using VNC, see
# <URL:http://www.uk.research.att.com/archive/vnc/sshvnc.html>.

# Use "-nolisten tcp" to prevent X connections to your VNC server via TCP.

# Use "-nohttpd" to prevent web-based VNC clients connecting.

# Use "-localhost" to prevent remote VNC clients connecting except when
# doing so through a secure tunnel.  See the "-via" option in the
# `man vncviewer' manual page.

# VNCSERVERS="2:myusername"
# VNCSERVERARGS[2]="-geometry 800x600 -nolisten tcp -nohttpd -localhost"

VNCSERVERS="1:oracle"                   #--- 1번부터 5901 port를 사용 한다.
VNCSERVERARGS[1]="-geometry 1152x864"   #--- 추가 옵션 : -nolisten -nohttpd -localhost