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We used to require the server key file to have permissions 0600 or less for best security. But some systems (such as Debian) have certificate and key files managed by the operating system that can be shared with other services. In those cases, the "postgres" user is made a member of a special group that has access to those files, and the server key file has permissions 0640. To accommodate that kind of setup, also allow the key file to have permissions 0640 but only if owned by root. From: Christoph Berg <myon@debian.org> Reviewed-by: Alvaro Herrera <alvherre@alvh.no-ip.org>
PostgreSQL Database Management System ===================================== This directory contains the source code distribution of the PostgreSQL database management system. PostgreSQL is an advanced object-relational database management system that supports an extended subset of the SQL standard, including transactions, foreign keys, subqueries, triggers, user-defined types and functions. This distribution also contains C language bindings. PostgreSQL has many language interfaces, many of which are listed here: http://www.postgresql.org/download See the file INSTALL for instructions on how to build and install PostgreSQL. That file also lists supported operating systems and hardware platforms and contains information regarding any other software packages that are required to build or run the PostgreSQL system. Copyright and license information can be found in the file COPYRIGHT. A comprehensive documentation set is included in this distribution; it can be read as described in the installation instructions. The latest version of this software may be obtained at http://www.postgresql.org/download/. For more information look at our web site located at http://www.postgresql.org/.