groupadd dba? ?
useradd -g oinstall -G dba oracle? ?
passwd oracle
2）创建Oralce HOME目录
mkdir -p /u01/app/oracle/product/11.2.0/db_1?
chmod -R 775 /u01/app? ?
chown -R oracle:oinstall /u01
?
4. 修改内核支持
# vi /etc/sysctl.conf
fs.aio-max-nr = 1048576?
fs.file-max = 6815744? ?
kernel.shmall = 2097152? ?
kernel.shmmax = 2147483648? ?
kernel.shmmni = 4096? ?
kernel.sem = 250 32000 100 128? ?
net.ipv4.ip_local_port_range = 9000 65500? ?
net.core.rmem_default = 4194304? ?
net.core.rmem_max = 4194304? ?
net.core.wmem_default = 262144? ?
net.core.wmem_max = 1048586
# sysctl -p
内核参数配置说明：? ?
kernel.shmall = 2097152? ? ? # 系统可以使用的共享内存总页数，缺省值就是2097152。? ?
kernel.shmmax = 2147483648? # 单个共享内存段的最大值，字节为单位, 此例为2GB。? ?
kernel.shmmni = 4096? ? ? ? # 共享内存段的最大默认数量
?
5. 修改文件描述符
cat >> /etc/security/limits.conf << EOF?
oracle? soft? nproc? 2047? ?
oracle? hard? nproc? 16384? ?
oracle? soft? nofile? 1024? ?
oracle? hard? nofile? 65536? ?
oracle? soft? stack? 10240? ?
EOF
?
6. 修改登陆认证模块
cat >> /etc/pam.d/login << EOF?
session required /lib64/security/pam_limits.so? ?
EOF
?
7. 修改本地hosts文件
# vi /etc/hosts?
192.168.233.100? ? vm100