Chapter 15. Infrastructure services
The following chapter contains the most notable changes to infrastructure services between RHEL 8 and RHEL 9.
15.1. Notable changes to infrastructure services
Support for Berkeley DB
dynamic back end has been removed
With this release, the Berkeley DB
(libdb
) dynamic back end is no longer supported. The named-sdb
build is no longer provided. You can use the DLZ loadable plugins
for each back end, for example, sqlite3
or mysql
. Those plugins are not built or shipped and have to be built from the source.
The mod_php
module provided with PHP for use with the Apache HTTP Server has been removed
The mod_php
module provided with PHP for use with the Apache HTTP Server is no longer available in RHEL 9.
Since RHEL 8, PHP scripts are run using the FastCGI Process Manager (php-fpm
) by default. For more information, see Using PHP with the Apache HTTP Server.
The BIND 9.18
is now supported in RHEL
BIND 9.18
has been added in RHEL 9.5 in the new bind9.18
package. The notable feature enhancements include the following:
- Added support for DNS over TLS (DoT) and DNS over HTTPS (DoH) in the `named`daemon
- Added support for both incoming and outgoing zone transfers over TLS
- Improved support for OpenSSL 3.0 interfaces
- New configuration options for tuning TCP and UDP send and receive buffers
-
Various improvements to the
dig
utility