Httpd is the Apache HyperText Transfer Protocol (HTTP) server program. It is designed to be run as a standalone daemon process. When used like this it will create a pool of child processes or threads to handle requests. In general, httpd should not be invoked directly, but rather should be invoked via apachectl on Unix-based systems. A web server is a network service that serves content to a client over the web. This typically means web pages, but any other documents can be served as well. Web servers are also known as HTTP servers, as they use the hypertext transport protocol (HTTP). The Apache HTTP Server, httpd, is an open source web server developed by the Apache Software Foundation. Two main unit files are available: httpd.service allows the httpd daemon to be run as a system service, and httpd.socket allows httpd to be started via socket-based activation. Most systems will. HTTP Daemon is a software program that runs in the background of a web server and waits for the incoming server requests. The daemon answers the request automatically and serves the hypertext and multimedia documents over the Internet using HTTP. HTTPd stands for Hypertext Transfer Protocol daemon (i.e.

After installing the httpd package, review the Apache HTTP Server's documentation available online at http://httpd.apache.org/docs/2.2/.

The httpd RPM installs the /etc/init.d/httpd script, which can be accessed using the /sbin/service Download colorvision usb devices driver. command.

Starting httpd using the apachectl control script sets the environmental variables in /etc/sysconfig/httpd and starts httpd. You can also set the environment variables using the init script.

To start the server using the apachectl control script as root type:

You can also start httpd using /sbin/service httpd start. This starts httpd but does not set the environment variables. If you are using the default Listen directive in httpd.conf Download copris.ch driver. , which is port 80, you will need to have root privileges to start the apache server.

To stop the server, as root type:

You can also stop httpd using /sbin/service httpd stop. The restart option is a shorthand way of stopping and then starting the Apache HTTP Server.

You can restart the server as root by typing:

Apache will display a message on the console or in the ErrorLog Atmel mobile phones & portable devices driver. if it encounters an error while starting.

By default, the httpd service does not start automatically at boot time. If you would wish to have Apache startup at boot time, you will need to add a call to apachectl in your startup files within the rc.N directory. A typical file used is rc.local. As this starts Apache as root, it is recommended to properly configure your security and authentication before adding this call.

You can also configure the httpd service to start up at boot time, using an initscript utility, such as /sbin/chkconfig, /usr/sbin/ntsysv, or the Services Configuration Tool program.

You can also display the status of your httpd server by typing:

The status module mod_status however needs to be enabled in your httpd.conf configuration file for this to work. For more details on mod_status can be found on http://httpd.apache.org/docs/2.2/mod/mod_status.html.

Note

If running the Apache HTTP Server as a secure server, the secure server's password is required after the machine boots when using an encrypted private SSL key.

You can find more information on http://httpd.apache.org/docs/2.2/ssl

The the httpd RPM installs the /etc/rc.d/init.d/httpd Bourne script, which is accessed using the /sbin/service command.

Service Https

To start your server, as root type:

If you are running the Apache HTTP Server as a secure server, you will be prompted to type your password.

To stop your server, type the command:

Service Httpd Status

The command restart is a shorthand way of stopping and then starting your server. The restart command explicitly stops and then starts your server. You will be prompted for your password if you are running the Apache HTTP Server as a secure server. The restart command looks like the following:

If you just finished editing something in your httpd.conf file, you do not need to explicitly stop and start your server. Instead, you can use the reload command.

If you are running the Apache HTTP Server as a secure server, you will not need to type your password when using the reload option as the password will remain cached across reloads.

The reload command looks like the following example:

By default, the httpd process will not start automatically when your machine boots. You will need to configure the httpd service to start up at boot time using an initscript utility, such as /sbin/chkconfig, /sbin/ntsysv, or the Services Configuration Tool program.

Please refer to the chapter titled Controlling Access to Services in Official Red Hat Linux Customization Guide for more information regarding these tools.

Service Httpd Restart Command Not Found

If you are running the Apache HTTP Server as a secure server, you will be prompted for the secure server's password after the machine boots, unless you generated a specific type of server key file.

For information about setting up an Apache HTTP Secure Server see the chapter titled Apache HTTP Secure Server Configuration in the Official Red Hat Linux Customization Guide.

Service Httpd Status