oracle11g安装

Ann. 2024-11-05

二．安装准备

1.确定是root用户登录

2. 修改主机名

（注意：2.3和2.4这两步，可做可不做，贴出来主要是想让大家了解一下如何改主机名）

修改/etc/sysconfig/network配置文件中的HOSTNAME变量

[root@localhost ~]# hostnamectl set-hostname oracledb

####永久性修改

[root@localhost ~]#vim /etc/sysconfig/network

NETWORKING=yes

HOSTNAME= oracledb

[root@localhost ~]# hostname oracledb复制

3 .添加主机名与IP对应记录

[root@localhost ~]# vi /etc/hosts
"你的服务器地址" oracledb复制

4 .关闭Selinux

[root@oracledb ~]# sed -i "s/SELINUX=enforcing/SELINUX=disabled/" /etc/selinux/config  
[root@oracledb ~]# setenforce 0复制

5.关闭防火墙

先查看默认情况下系统防火墙的状态，发现是开户状态。执行

systemctl stop firewalld.service复制

命令关闭防火墙再执行查看状态命令

rac1

[root@localhost network-scripts]# cat ifcfg-enp0s3 DEVICE=enp0s3 BOOTPROTO=static IPADDR=10.10.10.1 NETMASK=255.255.255.0 ONBOOT=yes

DEVICE=enp0s8 BOOTPROTO=static IPADDR=192.168.56.100 NETWASK=255.255.255.0 GATEWAY=192.168.56.1 ONBOOT=yes

rac2

[root@localhost network-scripts]# cat ifcfg-enp0s3 BOOTPROTO=static DEVICE=enp0s3 ONBOOT=yes IPADDR=10.10.10.2 NETMASK=255.255.255.0 [root@localhost network-scripts]# cat ifcfg-enp0s8 DEVICE=enp0s8 ONBOOT=yes BOOTPROTO=static IPADDR=192.168.56.101 NETMASK=255.255.255.0 GATEWAY=192.168.56.1

配置系统内核参数

vi /etc/sysctl.conf复制

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 = 4294967295 kernel.shmall = 268435456 fs.aio-max-nr = 1048576 fs.file-max = 6815744 kernel.shmall = 2097152 kernel.shmmax = 536870912 kernel.shmmni = 4096 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

接着限制shell命令

[root@testrac1 ~]# vi /etc/security/limits.conf testrac1**和testrac2修改**

oracle soft nproc 2047

oracle hard nproc 16384

oracle soft nofile 1024

oracle hard nofile 65536

oracle soft stack 10240

grid soft nproc 2047

grid hard nproc 16384

grid soft nofile 1024

grid hard nofile 65536

grid soft stack 10240

接着给session相关的限制模块打开

**[root@testrac1 ~]# vi /etc/pam.d/login   testrac1****和****testrac2****修改**

 

session required /lib/security/pam_limits.so复制

接着给oracle 用户的shell的一个限制

#vi /etc/profile testrac1**和testrac2都要修改**

if [ $USER = "oracle" ]||[ $USER = "grid" ]; then

if [ $SHELL = "/bin/ksh" ]; then

ulimit -p 16384

ulimit -n 65536

else

ulimit -u 16384 -n 65536

给另外一个节点传输文件

[root@testrac1 app]# scp /etc/profile 192.168.56.101:/etc/profilerac1