Chapter 17. Web Servers and Services

Apache HTTP Server 2.4

Version 2.4 of the Apache HTTP Server (httpd) is included in Red Hat Enterprise Linux 7, and offers a range of new features:
  • an enhanced version of the "Event" processing module, improving asynchronous request process and performance;
  • native FastCGI support in the mod_proxy module;
  • support for embedded scripting using the Lua language.
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 5.5

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 9.2

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: