在安装oracle数据库的red hat linux上的oracle用户上输入命令：lsnrctl start
报一下错误：
lsnrctl: error while loading shared libraries: /home/oracle/app/oracle/product/11.2.0/dbhome_1/lib/libclntsh.so.11.1: cannot restore segment prot after reloc: Permission denied
解决办法：
这是因为SELINUX的问题，需要关闭SELINX，执行：/usr/sbin/setenforce 0
引用：
When packaging an application on RHEL or CentOS, you may receive the following error:
cannot restore segment prot after reloc: Permission denied
This is likely due the the SE Linux setting being set to "enforcing"
.
To Temporarily disable enforcement on a running system
/usr/sbin/setenforce 0
To permanently disable enforcement during a system startup
change "enforcing" to "disabled" in ''/etc/selinux/config'' and reboot.
.
By default, CentOS 5 has the SE Linux feature set to "enforcing". We are looking into ways to removing these steps.