17장. Web Servers and Services

Version 2.4 of the Apache HTTP Server (httpd) is included in Red Hat Enterprise Linux 7, and offers a range of new features:

More information about the features and changes in httpd 2.4 can be found at http://httpd.apache.org/docs/2.4/new_features_2_4.html. A guide to adapting configuration files is also available: http://httpd.apache.org/docs/2.4/upgrading.html.

MariaDB is the default implementation of MySQL in Red Hat Enterprise Linux 7. MariaDB is a community-developed fork of the MySQL database project, and provides a replacement for MySQL. MariaDB preserves API and ABI compatibility with MySQL and adds several new features; for example, a non-blocking client API library, the Aria and XtraDB storage engines with enhanced performance, better server status variables, and enhanced replication.

Detailed information about MariaDB can be found at https://mariadb.com/kb/en/what-is-mariadb-55/.

PostgreSQL is an advanced Object-Relational database management system (DBMS). The postgresql packages include the PostgreSQL server package, client programs, and libraries needed to access a PostgreSQL DBMS server.

Red Hat Enterprise Linux 7 features version 9.2 of PostgreSQL. For a list of new features, bug fixes and possible incompatibilities against version 8.4 packaged in Red Hat Enterprise Linux 6, please refer to the upstream release notes:

Or the PostgreSQL wiki pages: