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This document covers compilation and installation of Apache on Unix systems. For compiling and installation on other platforms, see
You may download the latest version of Apache either directly from the Download Page.
Like all good things, there are two ways to configure, compile, and install Apache. You can go for the 3-minute installation process using the APACI process described below; or, you can opt for the same mechanism used in previous versions of Apache, as described in the file 'src/INSTALL'. Each mechanism has its benefits and drawbacks - APACI is newer and a little more raw, but it gets you up and running the least amount of time, whereas the "Configuration.tmpl" mechanism may be more familiar and give you some more flexibility to the power user. We'd be very interested in your comments and feedback regarding each approach.
$ ./configure --prefix=PREFIX $ make $ make install $ PREFIX/bin/apachectl start
PREFIX is not the string "PREFIX". Instead
use the Unix filesystem path under which Apache should be installed. For
instance use "
/usr/local/apache" for PREFIX above.
The following requirements exist for building Apache:
To provide maximum flexibility Apache now is able to load modules under runtime via the DSO mechanism by using the pragmatic dlopen()/dlsym() system calls. These system calls are not available under all operating systems therefore you cannot use the DSO mechanism on all platforms. And Apache currently has only limited built-in knowledge on how to compile shared objects because this is heavily platform-dependent. The current state is this:
If your system is not on these lists but has the dlopen-style interface, you either have to provide the appropriate compiler and linker flags (see CFLAGS_SHLIB, LDFLAGS_SHLIB and LDFLAGS_SHLIB_EXPORT below) manually or at least make sure a Perl 5 interpreter is installed from which Apache can guess the options.
For more in-depth information about DSO support in Apache 1.3 please read the document htdocs/manual/dso.html carefully. Especially the section entitled "Advantages & Disadvantages" because using the DSO mechanism can have strange side-effects if you are not careful. BE WARNED!
The next step is to configure the Apache source tree for your particular platform and personal requirements. The most important setup here is the location prefix where Apache is to be installed later, because Apache has to be configured for this location to work correctly. But there are a lot of other options available for your pleasure.
For a short impression of what possibilities you have, here is a typical example which compiles Apache for the installation tree /sw/pkg/apache with a particular compiler and flags plus the two additional modules mod_rewrite and mod_proxy for later loading through the DSO mechanism:
$ CC="pgcc" OPTIM="-O2" \ ./configure --prefix=/usr/local/apache \ --enable-module=rewrite --enable-shared=rewrite \ --enable-module=proxy --enable-shared=proxy
For a complete list of the available options, type the following command:
See also the file
README.configure for listings of
Now you can build the various parts which form the Apache package by simply running the command
Please be patient here, this takes approximately 2 minutes to complete under a Pentium-166/FreeBSD-2.2 system, dependent on the amount of modules you have enabled.
Now its time to install the package under the configured installation
PREFIX (see the
--prefix option above):
$ make install
In the following examples,
PREFIX is not the literal string
"PREFIX", but whatever argument you provided to
All configuration of Apache is performed in the
src directory of the Apache distribution. Change
into this directory.
src/Configuration.tmpl. Uncomment lines corresponding to those optional modules you wish to include (among the AddModule lines at the bottom of the file), or add new lines corresponding to additional modules you have downloaded or written. (See API.html for preliminary docs on how to write Apache modules). Advanced users can comment out some of the default modules if they are sure they will not need them (be careful though, since many of the default modules are vital for the correct operation and security of the server).
You should also read the instructions in the
Configuration file to see if you need to set
any of the
Configurescript as given below. However if this fails or you have any special requirements (e.g., to include an additional library required by an optional module) you might need to edit one or more of the following options in the
EXTRA_CFLAGS, LIBS, LDFLAGS, INCLUDES.
(*: Depending on Configuration and your system, Configure might not print these lines. That's OK).% Configure Using 'Configuration' as config file + configured for <whatever> platform + setting C compiler to <whatever> * + setting C compiler optimization-level to <whatever> * + Adding selected modules + doing sanity check on compiler and options Creating Makefile in support Creating Makefile in main Creating Makefile in os/unix Creating Makefile in modules/standard
This generates a Makefile for use in stage 3. It also creates a Makefile in the support directory, for compilation of the optional support programs.
(If you want to maintain multiple configurations, you
can give an option to
Configure to tell it to
read an alternative Configuration file, such as
Configure -file Configuration.ai).
srcdirectory. A binary distribution of Apache will supply this file.
The next step is to install the program and configure it.
Apache is designed to be configured and run from the same set
of directories where it is compiled. If you want to run it from
somewhere else, make a directory and copy the
directories into it. In either case you should read the security tips
describing how to set the permissions on the server root
The next step is to edit the configuration files for the
server. This consists of setting up various
directives in up to three central
configuration files. By default, these files are located in the
conf directory and are called
httpd.conf. To help you get started there are same
files in the
conf directory of the distribution,
Copy or rename these files to the names without the
-dist. Then edit each of the files. Read the
comments in each file carefully. Failure to setup these files
correctly could lead to your server not working or being
insecure. You should also have an additional file in the
conf directory called
This file usually does not need editing.
httpd.conf. This sets up general
attributes about the server: the port number, the user it runs
as, etc. Next edit the
this sets up the root of the document tree, special functions
like server-parsed HTML or internal imagemap parsing,
etc. Finally, edit the
to at least set the base cases of access.
In addition to these three files, the server behavior can be
configured on a directory-by-directory basis by using
.htaccess files in directories accessed by the
httpdserver which is compiled and configured as above, Apache includes a number of support programs. These are not compiled by default. The support programs are in the
supportdirectory of the distribution. To compile the support programs, change into this directory and type
Now you can fire up your Apache HTTP server by immediately running
$ PREFIX/bin/apachectl start
and then you should be able to request your first document via URL http://localhost/ (when you built and installed Apache as root or at least used the --without-confadjust option) or http://localhost:8080/ (when you built and installed Apache as a regular user). Then stop the server again by running:
$ PREFIX/bin/apachectl stop
net timecommand on NT.