安装好Linux操作系统：
[root@monitor ~]# cat /etc/redhat-release
Red Hat Enterprise Linux Server release 6.10 (Santiago)
[root@monitor ~]#
关闭防火墙 和 Selinux：
[root@monitor ~]# service iptables stop
[root@monitor ~]# chkconfig iptables off
[root@monitor ~]# cat /etc/selinux/config
This file controls the state of SELinux on the system.
SELINUX= can take one of these three values:
enforcing - SELinux security policy is enforced.
permissive - SELinux prints warnings instead of enforcing.
disabled - No SELinux policy is loaded.
SELINUX=disabled
SELINUXTYPE= can take one of these two values:
targeted - Targeted processes are protected,
mls - Multi Level Security protection.
SELINUXTYPE=targeted
创建DM用户：
[root@dm1 ~]# groupadd dinstall
[root@dm1 ~]# useradd -g dinstall dmdba
[root@dm1 ~]# passwd dmdba
Changing password for user dmdba.
New password:
BAD PASSWORD: The password is shorter than 8 characters
Retype new password:
passwd: all authentication tokens updated successfully.
[root@dm1 ~]#
[root@monitor ~]# id dm7
uid=500(dm7) gid=500(dinstall) groups=500(dinstall)
[root@monitor ~]#
创建目录：
[root@dm1 ~]# mkdir -p /dm/dmdbms
[root@dm1 ~]# mkdir -p /dm/dmarch
[root@dm1 ~]# mkdir -p /dm/dmbak
[root@dm1 ~]# chown -R dmdba:dinstall /dm/
[root@dm1 ~]# chmod -R 775 /dm/
配置系统限制，在/etc/security/limits.conf 文件中添加如下内容：
dmdba soft nofile 4096
dmdba hard nofile 65536
sysctl -p
验证修改：
[root@dm1 ~]# ulimit -a
配置环境变量：在dmdba用户的~/.bash_profile 里添加如下内容：
[dm7@monitor ~]$ cat ~/.bash_profile
.bash_profile
Get the aliases and functions
if [ -f ~/.bashrc ]; then
. ~/.bashrc
fi
User specific environment and startup programs
PATH=HOME/bin
export PATH
export DM_HOME="/dm7/dmdbms"
export LD_LIBRARY_PATH="/dm7/dmdbms/bin:PATH"
[dm7@monitor ~]$
注意，在DM 软件安装时会自动添加DM_HOME 和 LD_LIBRARY_PATH 变量，这里只需要添加PATH即可。
来源：CSDN
作者：yolandaxuan
链接：https://blog.csdn.net/yolandaxuan/article/details/103520433