This is the default example configuration of postgresql provided by PostgreSQL. This config file was generated by PostgreSQL running on CentOS 6.
It is located under: /etc/pam.d/postgresql
#%PAM-1.0
auth include password-auth
account include password-auth
Download the raw file with wget or curl
wget -O postgresql.example http://exampleconfig.com/static/raw/postgresql/centos6/etc/pam.d/postgresql
curl http://exampleconfig.com/static/raw/postgresql/centos6/etc/pam.d/postgresql > postgresql.example
Other config files you might find useful