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lsnrctl: error while loading shared libraries: /lib/libnnz11.so: cannot restore segment prot after reloc: Permission denied




Problem:

After installing Oracle E-Business Suit or after installing Oracle database 11.x.xx.xx Software
on OEL 5.x Server, trying to connect the database "sqlplus /nolog" or trying to start the lsnrctl, getting the below error message :

case1:

command : sqlplus /nolog

Error:

"sqlplus: error while loading shared libraries: <ORACLE_HOME>/lib/libnnz11.so: cannot restore segment prot after reloc: Permission denied"


case 2:
command : lsnrctl start <SID_NAME>

Error:

lsnrctl: error while loading shared libraries: <ORACLE_HOME>/lib/libnnz11.so: cannot restore segment prot after reloc: Permission denied






Cause:


According to Metalink Note: 454196.1 -  libnnz11.so: cannot restore segment prot after reloc: Permission denied and ./sqlplus: error on libnnz11.so: cannot restore segment prot after reloc [ID 454196.1] , it's SELinux causing this problem.


Solution:



Disable SELinux
Switch SELinux from the default "Enforcing" mode that it is running in, to the "Permissive" mode.

Commands, as root:
======================
getenforce       (returns "Enforcing")
setenforce 0
getenforce       (returns "Permissive")


Please follow the below snapshot:





Issue Resolved :)





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