九八云安全在Linux环境下部署Oracle数据库，需要遵循以下步骤：
1、系统环境准备
在部署Oracle数据库之前，需要确保操作系统满足Oracle数据库的最低要求，对于Linux系统，建议使用RHEL、CentOS或者Ubuntu等主流发行版，还需要确保系统已经安装了以下软件包：
gcc
gcc-c++
make
binutils
kernel-headers
libaio
compat-libcap1
sysstat
unixODBC
unixODBC-devel
numactl
numactl-devel
openssl
openssl-devel
python27
python27-devel
ksh
ksh93
ksh93u
ksh93u-devel
perl
perl-DBI
perl-DBD-Oracle
perl-Test-Harness
perl-ExtUtils-MakeMaker
perl-Archive-Tar
perl-Compress-Zlib
perl-IO-Compress
perl-Pod-Escapes
perl-Test-Harness
perl-Time-HiRes
perl-DBI
perl-DBD-Oracle
perl-Test-Harness
perl-ExtUtils-MakeMaker
perl-Archive-Tar
perl-Compress-Zlib
perl-IO-Compress
perl-Pod-Escapes
perl-Test-Harness
perl-Time-HiRes
2、创建Oracle用户和组
为了安装和管理Oracle数据库，需要创建一个专门的用户和组，可以使用以下命令创建用户和组：
“`
groupadd oinstall
groupadd dba
useradd -g oinstall -G dba oracle
passwd oracle
“`
3、配置内核参数
为了提高Oracle数据库的性能，可以调整Linux内核的一些参数，编辑/etc/sysctl.conf文件，添加以下内容：
“`
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 65535
net.core.rmem_default = 262144
net.core.rmem_max = 4194304
net.core.wmem_default = 262144
net.core.wmem_max = 1048576
net.core.netdev_max_backlog = 5000
net.core.somaxconn = 4096
net.ipv4.tcp_syncookies = 1
net.ipv4.tcp_tw_reuse = 1
net.ipv4.tcp_tw_recycle = 0
net.ipv4.tcp_fin_timeout = 30
net.ipv4.tcp_keepalive_time = 1200
net.ipv4.ip_local_port_range = 9000 65535
net.ipv4.tcp_max_syn_backlog = 8192
net.ipv4.tcp_max_tw_buckets = 5000
net.ipv4.tcp_fastopen = 3
net.ipv4.tcp_rmem = 4096 87380 67108864
net.ipv4.tcp_wmem = 4096 65536 67108864
net.ipv4.tcp_mtu_probing = 1
net.ipv4.tcp_congestion_control = hybla
net.ipv4.tcp_rfc1337 = 1
net.ipv4.tcp_slow_start_after_idle = 0
net.ipv4.tcp_no_metrics_save = 1
“`
4、创建Oracle安装目录和设置环境变量
创建Oracle安装目录并设置环境变量：
“`
mkdir -p /u01/app/oracle/product/12.1.0/dbhome_1/dbs /u01/app/oracle/product/12.1.0/dbhome_1/network /u01/app/oracle/product/12.1.0/dbhome_1/logs /u01/app/oracle/oradata /u01/app/oracle/admin /u01/app/oracle/config /u01/app/oracle/scripts /u01/app/oracle/diagnostics /u01/app/oracle/product/12.1.0/dbhome_1/bin /u01/app/oracle/product/12.1.0/dbhome_1/lib /u01/app/oracle/product/12.1.0/dbhome_1/jlib /u01/app/oracle/product/12.1.0/dbhome_1/rdbms /u01/app/oracle/product/12.1.0/dbhome_1/flash_recovery_area /u01/app/oracle/product/12.1.0/dbhome_1/admin /u01/app/oracle/product/12.1.0/dbhome_1/dpdump /u01/app/oracle/product/12.1.0/dbhome_1ASMSFiles /u01/app/oracle/product/12.1.0/dbhome_1ASMDiskGroup /u01/app/oracleAPEXConfigToolsInst /u01/app/oracleOraInstallHomeSeeAlsoFiles /u01/app/oracleOraInstallHomeCustomScripts /u01/app/oracleOraInstallHomeSampleSchemas /u01/app/oracleOraInstallHomeDatabaseCreationScripts /u01$ORACLE_BASE /u01$ORACLE_HOME /u01$ORACLE_SID /tmp /var/tmp /usr/tmp /var/opt /var/run /var/lock /var/adm /var/log /var
