Overview
The mod_http2
Apache module provides HTTP/2 support for the Apache HTTP server.
Important:
Most browsers only support HTTP/2 via encrypted (https
) connections.
Usage
This module can increase the loading speed and security of your web pages. To obtain these benefits, you must adjust your server's configuration.
Note:
HTTP/2 is resource intensive and can increase your server's memory usage.
You can edit the mod_http2
Apache module's .conf
file at the following location:
/etc/apache2/conf.d/http2.conf
For more configuration information, read Apache's mod_http2
documentation.
Requirements
This module requires EasyApache 4 and Apache 2.4.
Compatibility
The mod_http2
Apache module is not compatible with 32-bit CentOS 6 systems or with the following modules:
mod_mpm_itk
mod_mpm_prefork
On new installations of cPanel & WHM, the system installs the mod_mpm_prefork
module by default. To check the MPMs that your system uses, run the following command:
rpm -qa | grep mpm
The output may resemble the following example:
ea-apache24-mod_mpm_prefork-2.4.34-3.el7.cloudlinux.x86_64
How to install or uninstall mod_http2
In the interface
Install or uninstall the mod_http2
Apache module with WHM's EasyApache 4 interface (WHM >> Home >> Software >> EasyApache 4).
On the command line
You must manually uninstall the mod_mpm_prefork
or mod_mpm_itk
modules and install either the worker
or event
MPM for the mod_http2
Apache module to work correctly. To do this, perform the following steps as the root
user:
Open a
yum
shell
session. To do this, run theyum shell
command.Note:
For more information about
yum
shell
, read theman7.org
Yum documentation.Run either of the following series of commands:
> remove ea-apache24-mod_mpm_prefork > install ea-apache24-mod_mpm_event ea-apache24-mod_http2 > run
> remove ea-apache24-mod_mpm_itk ea-apache24-mod_mpm_prefork > install ea-apache24-mod_mpm_event ea-apache24-mod_http2 > run
The system will display a list of packages to remove and install and prompt you to confirm that you wish to perform this action.
- Enter
y
to remove and install the specified packages. When the system completes this task, aFinished Transaction
message will appear. - Exit the
yum
shell
session. To do this, run theexit
command.
To uninstall the mod_http2
Apache module in EasyApache 4, run the following command:
yum remove ea-apache24-mod_http2
Additional documentation
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