Hi All I have configured SELinux on ContOS 5.1. I have configured the RBAC using MLS (Multilevel Security) Policy. Now i am trying to restart the system services and they are not restarting and it is throwing some error message. I have a question here, with mls policy enabled will i be able to restart the system service? If yes then what to do and If no what is the reason? Steps to reproduce: 1) MLS Policy configuration. 1. Install selinux-policy-mls 2. Set SELINUXTYPE=MLS in /etc/selinux/config file 3. touch ./autorelabel; on root's home directory, and reboot the machine. 4. While machine is rebooting, change the GRUB parameter. enforcing=0 2) Now system is in permissive mode and SELinux status is as follows. # sestatus SELinux status: enabled SELinuxfs mount: /selinux Current mode: permissive Mode from config file: enforcing Policy version: 21 policy from config file: mls 3) Restart the system services and they restart successfully. [root@turtle11 ~]# service nfs restart Shutting down NFS mountd: [FAILED] Shutting down NFS daemon: [FAILED] Shutting down NFS quotas: [FAILED] Shutting down NFS services: [FAILED] Starting NFS services: [ OK ] Starting NFS quotas: [ OK ] Starting NFS daemon: [ OK ] Starting NFS mountd: [ OK ] 4) Now i am setting enforcing mode using setenforce command. root@turtle11 ~]#setenforce 1 root@turtle11 ~]# sestatus SELinux status: enabled SELinuxfs mount: /selinux Current mode: enforcing Mode from config file: enforcing Policy version: 21 Policy from config file: mls 5) a) Now system is in enforcing mode and i am trying to restart the system service. The restart will result in error message. root@turtle11 ~]#service nfs restart /sbin/consoletype: error while loading shared libraries: libc.so.6: cannot open shared object file: No such file or directory /sbin/consoletype: error while loading shared libraries: libc.so.6: cannot open shared object file: No such file or directory nfs: unrecognized service b) When I trying to login it will show the following error. turtle login: smbldap3 /bin/login:error while loading shared libraries: libcrypt.so.1:failed to map segment from shared object: Permission denied /sbin/mingetty: error while loading shared libraries: libc.so.6: failed to map segment from shared object: Permission denied c) When using su command. root@turtle11 ~]# su smbldap3 su: error while loading shared libraries: libpam.so.0: failed to map segment from shared object: Permission denied I am not sure what is going on. I referred to many websites and PDFs but couldn't get the proper solution. please help me. Thanks Prakash.