Almost all configuration can be done from within this file, although it is recommended to use separate, designated files for simplicity. This file will configure defaults and be the central point of access for the server to read configuration details. Be sure to check that this file is correct if you are configuring SSL.
For example, it is often used to define SSL configuration and default security choices. These will establish which content gets served for which requests. These are available configurations, not active configurations. Usually, this directory consists of symbolic links to files defined in the "sites-available" directory. Looking at the Apache2. We will focus on the first part of the file to learn how Apache defines its global settings. Global Configuration Section This section is used to configure some options that control how Apache works as a whole.
There are some interesting options you may want to modify in this section: Timeout By default, this parameter is set to "", which means that the server has a maximum of seconds to fulfill each request.
KeepAlive This option, if set to "On", will allow each connection to remain open to handle multiple requests from the same client. MaxKeepAliveRequests This controls how many separate request each connection will handle before dying. KeepAliveTimeout This setting specifies how long to wait for the next request after finishing the last one.
You can cross-reference which section your Apache installation was compiled with by exiting into the terminal and typing: apache2 -l Compiled in modules: core. You can adjust the configuration of the prefork MPM in the appropriate section. Exploring the Default Virtual Host File The default Virtual Host declaration can be found in a file called "default" in the "sites-available" directory.
Virtual Host Top Level Configuration These options are set within the Virtual Host definition outside of any other lower level sub-declaration. Directory Definitions Within the Virtual Host definition, there are definitions for how the server handles different directories within the file system. Enabling Sites and Modules in Apache Once you have a Virtual Host file that meets your requirements, you can use the tools included with Apache to transition them into live sites.
Conclusion We have gone over some basic Apache configuration files. By Justin Ellingwood. About the authors. Justin Ellingwood. Still looking for an answer? Ask a question Search for more help. Comments Follow-Up Questions. Before you can do that To complete this action, sign in to your Community account or create a new one.
Sign In Sign Up. Set to "Off" to deactivate. KeepAlive On. MaxKeepAliveRequests: The maximum number of requests to allow. Set to 0 to allow an unlimited amount.
We recommend you leave this number high, for maximum performance. MaxKeepAliveRequests KeepAliveTimeout: Number of seconds to wait for the next request from the.
KeepAliveTimeout 5. HostnameLookups: Log the names of clients or just their IP addresses. The default is off because it'd be overall better for the net if people.
HostnameLookups Off. ErrorLog: The location of the error log file. Available values: trace8, It is also possible to configure the log level for particular modules, e. LogLevel warn. Include module configuration:. Include list of ports to listen on. Include ports. Omit this option on the last entry. You can use the. One example is the page. This page can now be customized to display any kind of error message you want.
Just specify the ErrorDocument number, for example, Error than point. This guide provides basic commands and settings, with some of the most likely scenarios you might encounter.
Step 1: Enable Apache. What is an htaccess File? Was this article helpful? And so, for each file access out of that directory, there are 4 additional file-system accesses, even if none of those files are present. Note that this would only be the case if. In the case of RewriteRule directives, in.
Consult the Rewrite Guide for more detail on this subject. The second consideration is one of security. You are permitting users to modify server configuration, which may result in changes over which you have no control. Carefully consider whether you want to give your users this privilege.
Note also that giving users less privileges than they need will lead to additional technical support requests. Make sure you clearly tell your users what level of privileges you have given them. Specifying exactly what you have set AllowOverride to, and pointing them to the relevant documentation, will save yourself a lot of confusion later. Note that it is completely equivalent to put a. However, putting this configuration in your server configuration file will result in less of a performance hit, as the configuration is loaded once when httpd starts, rather than every time a file is requested.
The use of. The configuration directives found in a. However, it is important to also remember that there may have been. Directives are applied in the order that they are found. Therefore, a. And those, in turn, may have overridden directives found yet higher up, or in the main server configuration file itself.
Note: you must have " AllowOverride Options " in effect to permit the use of the " Options " directive in. Because of this second. As discussed in the documentation on Configuration Sections ,. This fact can be used to enforce certain configurations, even in the presence of a liberal AllowOverride setting.
For example, to prevent script execution while allowing anything else to be set in.
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