----------lsb_release -a----------
LSB Version:	:core-4.0-amd64:core-4.0-ia32:core-4.0-noarch:graphics-4.0-amd64:graphics-4.0-ia32:graphics-4.0-noarch:printing-4.0-amd64:printing-4.0-ia32:printing-4.0-noarch
Distributor ID:	CentOS
Description:	CentOS release 5.6 (Final)
Release:	5.6
Codename:	Final
----------/etc/redhat-release----------
CentOS release 5.6 (Final)