19 October 2010

Install Apache 2.2 with mod_proxy module for Tomcat 7.0.2

Installing/building Mod Proxy for integration of Apache with Tomcat
Install mod_proxy from apache source
Installing everything from source as usual results in leaner installation so that's the way I prefer to go on production servers. Also, the stop/start and restart time gives us less down time when not including dynamic shared object modules. So no dynamic modules is a plus even though it's less flexible and has a steeper learning curve.

To enable mod_proxy with necessary modules run the command below:

./configure --prefix=/usr/local/apache2.0 \
--enable-proxy \
--enable-proxy-connect \

Note: the backslash lets you spread out a single command over more than one lines, which improves readability. So after the backslash once you press return the command will not be executed.

If you need to access files using ftp then add --enable-proxy-ftp to you list of modules when executing the above command.

Dynamic vs. Static

./configure --enable-proxy=static will build mod_proxy linked statically into the resulting httpd executable; this is the default if you specify ./configure --enable-proxy. ./configure --enable-proxy=shared is necessary to build the module as a loadable shared library.

Similarly, ./configure --enable-modules=proxy will link mod_proxy statically into the executable, while ./configure --enable-mods-shared=proxy will cause it to be built as a shared library. See the Apache configure documentation for more details.

Apache configure/installation/build from source Help

run the command ./configure --help to get the below output of the options available for configuring apache before building and installing it.

`configure' configures this package to adapt to many kinds of systems.

Usage: ./configure [OPTION]... [VAR=VALUE]...

To assign environment variables (e.g., CC, CFLAGS...), specify them as
VAR=VALUE.  See below for descriptions of some of the useful variables.

Defaults for the options are specified in brackets.

  -h, --help              display this help and exit
      --help=short        display options specific to this package
      --help=recursive    display the short help of all the included packages
  -V, --version           display version information and exit
  -q, --quiet, --silent   do not print `checking...' messages
      --cache-file=FILE   cache test results in FILE [disabled]
  -C, --config-cache      alias for `--cache-file=config.cache'
  -n, --no-create         do not create output files
      --srcdir=DIR        find the sources in DIR [configure dir or `..']

Installation directories:
  --prefix=PREFIX         install architecture-independent files in PREFIX
  --exec-prefix=EPREFIX   install architecture-dependent files in EPREFIX

By default, `make install' will install all the files in
`/usr/local/apache2/bin', `/usr/local/apache2/lib' etc.  You can specify
an installation prefix other than `/usr/local/apache2' using `--prefix',
for instance `--prefix=$HOME'.

For better control, use the options below.

Fine tuning of the installation directories:
  --bindir=DIR            user executables [EPREFIX/bin]
  --sbindir=DIR           system admin executables [EPREFIX/sbin]
  --libexecdir=DIR        program executables [EPREFIX/libexec]
  --sysconfdir=DIR        read-only single-machine data [PREFIX/etc]
  --sharedstatedir=DIR    modifiable architecture-independent data [PREFIX/com]
  --localstatedir=DIR     modifiable single-machine data [PREFIX/var]
  --libdir=DIR            object code libraries [EPREFIX/lib]
  --includedir=DIR        C header files [PREFIX/include]
  --oldincludedir=DIR     C header files for non-gcc [/usr/include]
  --datarootdir=DIR       read-only arch.-independent data root [PREFIX/share]
  --datadir=DIR           read-only architecture-independent data [DATAROOTDIR]
  --infodir=DIR           info documentation [DATAROOTDIR/info]
  --localedir=DIR         locale-dependent data [DATAROOTDIR/locale]
  --mandir=DIR            man documentation [DATAROOTDIR/man]
  --docdir=DIR            documentation root [DATAROOTDIR/doc/PACKAGE]
  --htmldir=DIR           html documentation [DOCDIR]
  --dvidir=DIR            dvi documentation [DOCDIR]
  --pdfdir=DIR            pdf documentation [DOCDIR]
  --psdir=DIR             ps documentation [DOCDIR]

System types:
  --build=BUILD     configure for building on BUILD [guessed]
  --host=HOST       cross-compile to build programs to run on HOST [BUILD]
  --target=TARGET   configure for building compilers for TARGET [HOST]

Optional Features:
  --disable-option-checking  ignore unrecognized --enable/--with options
  --disable-FEATURE       do not include FEATURE (same as --enable-FEATURE=no)
  --enable-FEATURE[=ARG]  include FEATURE [ARG=yes]
  --enable-v4-mapped      Allow IPv6 sockets to handle IPv4 connections
  --enable-exception-hook Enable fatal exception hook
                          Turn on debugging and compile time warnings
  --enable-pie            Build httpd as a Position Independent Executable
                          Space-separated list of modules to enable | "all" |
                          Space-separated list of shared modules to enable |
                          "all" | "most"
  --disable-authn-file    file-based authentication control
  --enable-authn-dbm      DBM-based authentication control
  --enable-authn-anon     anonymous user authentication control
  --enable-authn-dbd      SQL-based authentication control
  --disable-authn-default authentication backstopper
  --enable-authn-alias    auth provider alias
  --disable-authz-host    host-based authorization control
                          'require group' authorization control
  --disable-authz-user    'require user' authorization control
  --enable-authz-dbm      DBM-based authorization control
  --enable-authz-owner    'require file-owner' authorization control
  --enable-authnz-ldap    LDAP based authentication
  --disable-authz-default authorization control backstopper
  --disable-auth-basic    basic authentication
  --enable-auth-digest    RFC2617 Digest authentication
  --enable-isapi          isapi extension support
  --enable-file-cache     File cache
  --enable-cache          dynamic file caching
  --enable-disk-cache     disk caching module
  --enable-mem-cache      memory caching module
  --enable-dbd            Apache DBD Framework
  --enable-bucketeer      buckets manipulation filter
  --enable-dumpio         I/O dump filter
  --enable-echo           ECHO server
  --enable-example        example and demo module
  --enable-case-filter    example uppercase conversion filter
  --enable-case-filter-in example uppercase conversion input filter
  --enable-reqtimeout     Limit time waiting for request from client
  --enable-ext-filter     external filter module
  --disable-include       Server Side Includes
  --disable-filter        Smart Filtering
  --enable-substitute     response content rewrite-like filtering
  --disable-charset-lite  character set translation
  --enable-charset-lite   character set translation
  --enable-deflate        Deflate transfer encoding support
  --enable-ldap           LDAP caching and connection pooling services
  --disable-log-config    logging configuration
  --enable-log-forensic   forensic logging
  --enable-logio          input and output logging
  --disable-env           clearing/setting of ENV vars
  --enable-mime-magic     automagically determining MIME type
  --enable-cern-meta      CERN-type meta files
  --enable-expires        Expires header control
  --enable-headers        HTTP header control
  --enable-ident          RFC 1413 identity check
  --enable-usertrack      user-session tracking
  --enable-unique-id      per-request unique ids
  --disable-setenvif      basing ENV vars on headers
  --disable-version       determining httpd version in config files
  --enable-proxy          Apache proxy module
  --enable-proxy-connect  Apache proxy CONNECT module
  --enable-proxy-ftp      Apache proxy FTP module
  --enable-proxy-http     Apache proxy HTTP module
  --enable-proxy-scgi     Apache proxy SCGI module
  --enable-proxy-ajp      Apache proxy AJP module
  --enable-proxy-balancer Apache proxy BALANCER module
  --enable-ssl            SSL/TLS support (mod_ssl)
  --enable-distcache      Select distcache support in mod_ssl
                          example optional hook exporter
                          example optional hook importer
                          example optional function importer
                          example optional function exporter
  --enable-static-support Build a statically linked version of the support
                          Build a statically linked version of htpasswd
                          Build a statically linked version of htdigest
                          Build a statically linked version of rotatelogs
                          Build a statically linked version of logresolve
  --enable-static-htdbm   Build a statically linked version of htdbm
  --enable-static-ab      Build a statically linked version of ab
                          Build a statically linked version of checkgid
                          Build a statically linked version of htcacheclean
                          Build a statically linked version of httxt2dbm
  --enable-http           HTTP protocol handling
  --disable-mime          mapping of file-extension to MIME
  --enable-dav            WebDAV protocol handling
  --disable-status        process/thread monitoring
  --disable-autoindex     directory listing
  --disable-asis          as-is filetypes
  --enable-info           server information
  --enable-suexec         set uid and gid for spawned processes
  --disable-cgid          CGI scripts
  --enable-cgi            CGI scripts
  --disable-cgi           CGI scripts
  --enable-cgid           CGI scripts
  --enable-dav-fs         DAV provider for the filesystem
  --enable-dav-lock       DAV provider for generic locking
  --enable-vhost-alias    mass virtual hosting module
  --disable-negotiation   content negotiation
  --disable-dir           directory request handling
  --enable-imagemap       server-side imagemaps
  --disable-actions       Action triggering on requests
  --enable-speling        correct common URL misspellings
  --disable-userdir       mapping of requests to user-specific directories
  --disable-alias         mapping of requests to different filesystem parts
  --enable-rewrite        rule based URL manipulation
  --enable-so             DSO capability

Optional Packages:
  --with-PACKAGE[=ARG]    use PACKAGE [ARG=yes]
  --without-PACKAGE       do not use PACKAGE (same as --with-PACKAGE=no)
  --with-included-apr     Use bundled copies of APR/APR-Util
  --with-apr=PATH         prefix for installed APR or the full path to
  --with-apr-util=PATH    prefix for installed APU or the full path to
  --with-pcre=PATH        Use external PCRE library
  --with-port=PORT        Port on which to listen (default is 80)
  --with-sslport=SSLPORT  Port on which to securelisten (default is 443)
  --with-z=DIR            use a specific zlib library
  --with-sslc=DIR         RSA SSL-C SSL/TLS toolkit
  --with-ssl=DIR          OpenSSL SSL/TLS toolkit
  --with-mpm=MPM          Choose the process model for Apache to use.
                          Enable module-file in the modules/
  --with-program-name     alternate executable name
  --with-suexec-bin       Path to suexec binary
  --with-suexec-caller    User allowed to call SuExec
  --with-suexec-userdir   User subdirectory
  --with-suexec-docroot   SuExec root directory
  --with-suexec-uidmin    Minimal allowed UID
  --with-suexec-gidmin    Minimal allowed GID
  --with-suexec-logfile   Set the logfile
  --with-suexec-safepath  Set the safepath
  --with-suexec-umask     umask for suexec'd process

Some influential environment variables:
  CC          C compiler command
  CFLAGS      C compiler flags
  LDFLAGS     linker flags, e.g. -L if you have libraries in a
              nonstandard directory 
  LIBS        libraries to pass to the linker, e.g. -l
  CPPFLAGS    (Objective) C/C++ preprocessor flags, e.g. -I if
              you have headers in a nonstandard directory 
  CPP         C preprocessor

Use these variables to override the choices made by `configure' or to help
it to find libraries and programs with nonstandard names/locations.