CentOS7 graphical installation of Oracle19C

CentOS7 graphical installation of Oracle19C

Operating system: CentOS7

Oracle： 19C

Remote connection tool: Xmanager Power Suite 7

Install common tools and dependencies

yum -y install vim tar net-tools wget perl python3 readline* deltarpm python-deltarpm \
 zip unzip bc compat-libcap1* compat-libcap* binutils compat-libstdc++-33 \
 elfutils-libelf elfutils-libelf-devel gcc gcc-c++ glibc-2.5 glibc-common glibc-devel \
 glibc-headers ksh libaio libaio-devel libgcc libstdc++ libstdc++-devel make sysstat \
 unixODBC unixODBC-devel binutils* compat-libstdc* elfutils-libelf* \
 gcc* glibc* ksh* libaio* libgcc* libstdc* make* sysstat* libXp* glibc-kernheaders

Bind hostname and IP mapping

# 修改主机名
hostnamectl set-hostname oracle

# 绑定主机名和IP映射
vim /etc/hosts

Fill in the following content

192.168.126.141	oracle

It is recommended to restart the server

reboot

Modify the kernel file of LINUX

vim /etc/sysctl.conf

Append the following

fs.file-max = 6815744
fs.aio-max-nr = 1048576
kernel.shmall = 67747971072
kernel.shmmax = 277495689510912
kernel.shmmni = 4096
kernel.sem = 250 32000 100 128
net.core.rmem_default = 262144
net.core.rmem_max = 4194304
net.core.wmem_default = 262144
net.core.wmem_max = 1048586
net.ipv4.tcp_max_tw_buckets = 6000
net.ipv4.ip_local_port_range = 9000 65500
net.ipv4.tcp_tw_recycle = 0
net.ipv4.tcp_tw_reuse = 1
net.core.netdev_max_backlog = 262144
net.ipv4.tcp_max_orphans = 262144
net.ipv4.tcp_max_syn_backlog = 262144
net.ipv4.tcp_synack_retries = 2
net.ipv4.tcp_syn_retries = 1
net.ipv4.tcp_fin_timeout = 1
net.ipv4.tcp_keepalive_time = 30
net.ipv4.tcp_keepalive_probes = 6
net.ipv4.tcp_keepalive_intvl = 5
net.ipv4.tcp_timestamps = 0
net.ipv4.conf.all.rp_filter = 2
net.ipv4.conf.default.rp_filter = 2
# net.core.somaxconn = 262144

Generate system parameters after modification

sysctl -p

Optimize resource constraints

vim /etc/security/limits.conf

Append the following

oracle   soft   nofile    1024
oracle   hard   nofile    65536
oracle   soft   nproc    16384
oracle   hard   nproc    16384
oracle   soft   stack    10240
oracle   hard   stack    32768
oracle   hard   memlock    134217728
oracle   soft   memlock    134217728

Authentication settings before program execution

vim /etc/pam.d/login

Append the following

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

Configure system environment variables to set the ksh used by Oracle users

vim /etc/profile

Append the following

if [ $USER = "oracle" ]; then
   if [ $SHELL = "/bin/ksh" ]; then
      ulimit -p 16384
      ulimit -n 65536
      else
      ulimit -u 16384 -n 65536
   fi
fi

The current session global environment variable takes effect

source /etc/profile

Create Oracle use file directory and corresponding user and password

groupadd oinstall
groupadd dba
groupadd oper
useradd -g oinstall -G dba,oper oracle

passwd oracle

mkdir -p /u01/app/oracle /u01/oraInventory /u01/app/oracle/product/19c/db_1 
chown -R oracle:oinstall /u01
chmod -R 775 /u01/app/oracle

Configure the environment variables of the oracle user

Switch to the oracle user first

su - oracle

Configure user environment variables

vim .bash_profile

Append the following

export EDITOR=vim
export TMP=/tmp  
export TMPDIR=$TMP
export ORACLE_SID=orcl
export ORACLE_BASE=/u01/app/oracle
export ORACLE_HOME=$ORACLE_BASE/product/19c/db_1
export INVENTORY_LOCATION=/u01/oraInventory
export TNS_ADMIN=$ORACLE_HOME/network/admin
export LD_LIBRARY_PATH=$ORACLE_HOME/lib
export NLS_LANG="AMERICAN_AMERICA.AL32UTF8"
export NLS_DATE_FORMAT="YYYY-MM-DD HH24:MI:SS"
export PATH=$ORACLE_HOME/bin:/bin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/X11R6/bin:$PATH:$HOME/bin
umask 022

Current session user environment variables take effect

source .bash_profile

Upload the Oracle installation package and decompress it

Upload the Oracle installation package to the $ORACLE_HOME path

If you use a non-oracle user to upload, switch to the root user to modify the owner of the oracle installation package

chown -R oracle:oinstall LINUX.X64_193000_db_home.zip

Switch to the oracle user to decompress

su - oracle

cd $ORACLE_HOME

or use an absolute path

cd /u01/app/oracle/product/19c/db_1

decompress

unzip LINUX.X64_193000_db_home.zip

Install Oracle software

1. install software
2. create listener
3. DBCA create database

Use the oracle user to enter the $ORACLE_HOME directory to install

./runInstaller

According to the prompt:

As a root user, execute the following script(s):
	1. /u01/oraInventory/orainstRoot.sh
	2. /u01/app/oracle/product/19c/db_1/root.sh

You need to use the root user to execute the following two scripts in sequence

/u01/oraInventory/orainstRoot.sh

/u01/app/oracle/product/19c/db_1/root.sh

Response configuration file, which can be downloaded locally for future silent installation

/u01/app/oracle/product/19c/db_1/install/response/db_2023-07-04_09-02-29AM.rsp

Configure monitoring

netca

Check listening status

lsnrctl status

DBCA create database

dbca

install rlwrap

It is very inconvenient to use sqlplus under Linux. The up and down keys and backspace keys cannot be used, which seriously reduces production efficiency.

For the convenience of sqlplus under linux to call history commands and backspace, install rlwrap

Download the source code and use the root user to compile and install

tar -zxvf rlwrap-0.45.2.tar.gz

cd rlwrap-0.45.2

./configure

make -j8

make install

Switch to oracle user configuration user environment variables support rlwrap

su - oracle

vim /home/oracle/.bash_profile

Append the following:

alias sqlplus='rlwrap sqlplus'
alias rman='rlwrap rman'
alias lsnrctl='rlwrap lsnrctl'

Current session user environment variables take effect

source /home/oracle/.bash_profile

sqlplus connect to database

Use the oracle user to operate

sqlplus / as sysdba

conn / as sysdba;

conn sys/oracle@orcl as sysdba;

set linesize 300;

set pagesize 300;

select tname from tab;

select userenv('language') from dual;

select * from nls_database_parameters;

select * from V$NLS_PARAMETERS;

select status from v$instance;

# 关闭监听
lsnrctl stop

-- 关闭数据库
shutdown immediate;

-- 开启数据库
startup;

# 关闭监听
lsnrctl start

Development firewall port

use root user

firewall-cmd --zone=public --add-port=1521/tcp --permanent

firewall-cmd --reload 

–zone #Scope
–add-port=1521/tcp #Add port, the format is: port/communication protocol
–permanent #Permanently effective, without this parameter, it will fail after restarting

sqldeveloper connects to oracle

Use the sys account to connect to the orcl instance