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よくわからないエンジニア

apache 2.4.20の設定

この数日間色々とありました為、更新していませんでした。まず独自ドメインに移行しました。金が欲しくてグーグルアドセンスに登録しようとしたら、独自ドメインじゃなくては駄目だという事を知ったのです。良い機会だったので、はてなPro&お名前.comで独自ドメイン使えるようにしました。

もう一つはPS4とパワプロ2016を購入し、会社以外の時間はそちらに費やしていた為、完全にブログを疎かにしていました。今日から悔い改めます。

目次

apache2.4.20の設定

主にチューニングです。まずシンボリックリンク貼ってから、confディレクトリに移動します。

cd /usr/local/
ln -s /usr/local/apache-2.4.20 apache2
cd apache2/conf/
vi httpd.conf

まずはhttpd.confを修正。修正しない箇所とかはそこそこ中略するのであしからず。。

#
<中略>
# least PidFile.
#
ServerRoot "/usr/local/apache-2.4.20"

<中略>
#Listen 12.34.56.78:80
Listen 172.*.*.20:80

#
# Dynamic Shared Object (DSO) Support
#
# To be able to use the functionality of a module which was built as a DSO you
# have to place corresponding `LoadModule' lines at this location so the
# directives contained in it are actually available _before_ they are used.
# Statically compiled modules (those listed by `httpd -l') do not need
# to be loaded here.
#
# Example:
# LoadModule foo_module modules/mod_foo.so
#
LoadModule authn_file_module modules/mod_authn_file.so
#LoadModule authn_dbm_module modules/mod_authn_dbm.so
#LoadModule authn_anon_module modules/mod_authn_anon.so
#LoadModule authn_dbd_module modules/mod_authn_dbd.so
#LoadModule authn_socache_module modules/mod_authn_socache.so
LoadModule authn_core_module modules/mod_authn_core.so
LoadModule authz_host_module modules/mod_authz_host.so
LoadModule authz_groupfile_module modules/mod_authz_groupfile.so
LoadModule authz_user_module modules/mod_authz_user.so
#LoadModule authz_dbm_module modules/mod_authz_dbm.so
#LoadModule authz_owner_module modules/mod_authz_owner.so
#LoadModule authz_dbd_module modules/mod_authz_dbd.so
LoadModule authz_core_module modules/mod_authz_core.so
LoadModule access_compat_module modules/mod_access_compat.so
LoadModule auth_basic_module modules/mod_auth_basic.so
#LoadModule auth_form_module modules/mod_auth_form.so
#LoadModule auth_digest_module modules/mod_auth_digest.so
#LoadModule allowmethods_module modules/mod_allowmethods.so
#LoadModule file_cache_module modules/mod_file_cache.so
#LoadModule cache_module modules/mod_cache.so
#LoadModule cache_disk_module modules/mod_cache_disk.so
#LoadModule cache_socache_module modules/mod_cache_socache.so
LoadModule socache_shmcb_module modules/mod_socache_shmcb.so
#LoadModule socache_dbm_module modules/mod_socache_dbm.so
#LoadModule socache_memcache_module modules/mod_socache_memcache.so
#LoadModule macro_module modules/mod_macro.so
#LoadModule dbd_module modules/mod_dbd.so
#LoadModule dumpio_module modules/mod_dumpio.so
#LoadModule buffer_module modules/mod_buffer.so
#LoadModule ratelimit_module modules/mod_ratelimit.so
LoadModule reqtimeout_module modules/mod_reqtimeout.so
#LoadModule ext_filter_module modules/mod_ext_filter.so
#LoadModule request_module modules/mod_request.so
LoadModule include_module modules/mod_include.so
LoadModule filter_module modules/mod_filter.so
LoadModule substitute_module modules/mod_substitute.so
#LoadModule sed_module modules/mod_sed.so
#LoadModule deflate_module modules/mod_deflate.so
LoadModule mime_module modules/mod_mime.so
LoadModule log_config_module modules/mod_log_config.so
#LoadModule log_debug_module modules/mod_log_debug.so
#LoadModule logio_module modules/mod_logio.so
LoadModule env_module modules/mod_env.so
LoadModule expires_module modules/mod_expires.so
LoadModule headers_module modules/mod_headers.so
#LoadModule unique_id_module modules/mod_unique_id.so
LoadModule setenvif_module modules/mod_setenvif.so
LoadModule version_module modules/mod_version.so
#LoadModule remoteip_module modules/mod_remoteip.so
#LoadModule proxy_module modules/mod_proxy.so
#LoadModule proxy_connect_module modules/mod_proxy_connect.so
#LoadModule proxy_ftp_module modules/mod_proxy_ftp.so
#LoadModule proxy_http_module modules/mod_proxy_http.so
#LoadModule proxy_fcgi_module modules/mod_proxy_fcgi.so
#LoadModule proxy_scgi_module modules/mod_proxy_scgi.so
#LoadModule proxy_wstunnel_module modules/mod_proxy_wstunnel.so
#LoadModule proxy_ajp_module modules/mod_proxy_ajp.so
#LoadModule proxy_balancer_module modules/mod_proxy_balancer.so
#LoadModule proxy_express_module modules/mod_proxy_express.so
#LoadModule session_module modules/mod_session.so
#LoadModule session_cookie_module modules/mod_session_cookie.so
#LoadModule session_dbd_module modules/mod_session_dbd.so
#LoadModule slotmem_shm_module modules/mod_slotmem_shm.so
LoadModule ssl_module modules/mod_ssl.so
#LoadModule lbmethod_byrequests_module modules/mod_lbmethod_byrequests.so
#LoadModule lbmethod_bytraffic_module modules/mod_lbmethod_bytraffic.so
#LoadModule lbmethod_bybusyness_module modules/mod_lbmethod_bybusyness.so
#LoadModule lbmethod_heartbeat_module modules/mod_lbmethod_heartbeat.so
LoadModule unixd_module modules/mod_unixd.so
#LoadModule dav_module modules/mod_dav.so
LoadModule status_module modules/mod_status.so
LoadModule autoindex_module modules/mod_autoindex.so
#LoadModule info_module modules/mod_info.so
#LoadModule cgid_module modules/mod_cgid.so
#LoadModule dav_fs_module modules/mod_dav_fs.so
#LoadModule vhost_alias_module modules/mod_vhost_alias.so
#LoadModule negotiation_module modules/mod_negotiation.so
LoadModule dir_module modules/mod_dir.so
#LoadModule actions_module modules/mod_actions.so
#LoadModule speling_module modules/mod_speling.so
#LoadModule userdir_module modules/mod_userdir.so
LoadModule alias_module modules/mod_alias.so
LoadModule rewrite_module modules/mod_rewrite.so

<IfModule unixd_module>
#
# If you wish httpd to run as a different user or group, you must run
# httpd as root initially and it will switch.
#
# User/Group: The name (or #number) of the user/group to run httpd as.
# It is usually good practice to create a dedicated user and group for
# running httpd, as with most system services.
#
User httpd
Group httpd

</IfModule>

# 'Main' server configuration
#
# The directives in this section set up the values used by the 'main'
# server, which responds to any requests that aren't handled by a
# <VirtualHost> definition.  These values also provide defaults for
# any <VirtualHost> containers you may define later in the file.
#
# All of these directives may appear inside <VirtualHost> containers,
# in which case these default settings will be overridden for the
# virtual host being defined.
#

#
# ServerAdmin: Your address, where problems with the server should be
# e-mailed.  This address appears on some server-generated pages, such
# as error documents.  e.g. admin@your-domain.com
#
#ServerAdmin you@example.com
ServerAdmin ***@unknown.com

#
# ServerName gives the name and port that the server uses to identify itself.
# This can often be determined automatically, but we recommend you specify
# it explicitly to prevent problems during startup.
#
# If your host doesn't have a registered DNS name, enter its IP address here.
#
#ServerName www.example.com:80
ServerName www.unknown.com:80

<中略>
<IfModule alias_module>
    #
    # Redirect: Allows you to tell clients about documents that used to
    # exist in your server's namespace, but do not anymore. The client
    # will make a new request for the document at its new location.
    # Example:
    # Redirect permanent /foo http://www.example.com/bar

    #
    # Alias: Maps web paths into filesystem paths and is used to
    # access content that does not live under the DocumentRoot.
    # Example:
    # Alias /webpath /full/filesystem/path
    #
    # If you include a trailing / on /webpath then the server will
    # require it to be present in the URL.  You will also likely
    # need to provide a <Directory> section to allow access to
    # the filesystem path.

    #
    # ScriptAlias: This controls which directories contain server scripts.
    # ScriptAliases are essentially the same as Aliases, except that
    # documents in the target directory are treated as applications and
    # run by the server when requested rather than as documents sent to the
    # client.  The same rules about trailing "/" apply to ScriptAlias
    # directives as to Alias.
    #
    #ScriptAlias /cgi-bin/ "/usr/local/apache-2.4.20/cgi-bin/"

</IfModule>

<IfModule cgid_module>
    #
    # ScriptSock: On threaded servers, designate the path to the UNIX
    # socket used to communicate with the CGI daemon of mod_cgid.
    #
    #Scriptsock cgisock
</IfModule>

#
# "/usr/local/apache-2.4.20/cgi-bin" should be changed to whatever your ScriptAliased
# CGI directory exists, if you have that configured.
#
#<Directory "/usr/local/apache-2.4.20/cgi-bin">
#    AllowOverride None
#    Options None
#    Require all granted
#</Directory>
<以下変更なしの為後略>

とりあえず起動させるだけなら上記で大丈夫な気がする。詳細な変更点は記載しませんが有効にしたモジュールは以下に記載。後、当面CGI使う予定ないので、関連する箇所はコメントアウトしました。

LoadModule include_module modules/mod_include.so ※SSI使う場合
LoadModule substitute_module modules/mod_substitute.so ※文字列置換
LoadModule expires_module modules/mod_expires.so ※Cache-Control ヘッダの max-age ディレクティブの 設定を制御します
LoadModule rewrite_module modules/mod_rewrite.so ※リダイレクト処理関連?別途勉強する。  

LoadModule socache_shmcb_module modules/mod_socache_shmcb.so ※SSLのキャッシュ関連?いるの?
LoadModule ssl_module modules/mod_ssl.so ※SSL使う人はこちらを有効に

よし。起動するぜ!と思ったが、/etc/init.d以下に起動スクリプトが無い。srcからコピーしてきます。

cp /usr/local/src/httpd-2.4.20/build/rpm/httpd.init /etc/rc.d/init.d/httpd

個人的にいらない箇所を大胆にカットする。

#!/bin/bash
#
# chkconfig: - 85 15
# description: The Apache HTTP Server is an efficient and extensible  \
#             server implementing the current HTTP standards.
# processname: httpd
# pidfile: /var/run/httpd.pid
# config: /etc/sysconfig/httpd

# Source function library.
. /etc/rc.d/init.d/functions
httpd=/usr/local/apache2/bin/apachectl
pidfile=/usr/local/apache2/logs/httpd.pid
lockfile=/var/lock/subsys/httpd
RETVAL=0
prog="httpd"

# The semantics of these two functions differ from the way apachectl does
# things -- attempting to start while running is a failure, and shutdown
# when not running is also a failure.  So we just do it the way init scripts
# are expected to behave here.
start() {
        echo -n $"Starting $prog: "
        LANG=$HTTPD_LANG daemon --pidfile=${pidfile} $httpd $OPTIONS
        RETVAL=$?
        echo
        [ $RETVAL = 0 ] && touch ${lockfile}
        return $RETVAL
}
stop() {
        echo -n $"Stopping $prog: "
        killproc -p ${pidfile} -d 10 $httpd
        RETVAL=$?
        echo
        [ $RETVAL = 0 ] && rm -f ${lockfile} ${pidfile}
}
reload() {
        echo -n $"Reloading $prog: "
        killproc -p ${pidfile} $httpd -HUP
        RETVAL=$?
        echo
}

# See how we were called.
case "$1" in
  start)
        start
        ;;
  stop)
        stop
        ;;
  status)
        if ! test -f ${pidfile}; then
            echo $prog is stopped
            RETVAL=3
        else
            status -p ${pidfile} $httpd
            RETVAL=$?
        fi
        ;;
  restart)
        stop
        start
        ;;
  condrestart)
        if test -f ${pidfile} && status -p ${pidfile} $httpd >&/dev/null; then
                stop
                start
        fi
        ;;
  reload)
        reload
        ;;
  configtest)
        LANG=$HTTPD_LANG $httpd $OPTIONS -t
        RETVAL=$?
        ;;
  graceful)
        echo -n $"Gracefully restarting $prog: "
        LANG=$HTTPD_LANG $httpd $OPTIONS -k $@
        RETVAL=$?
        echo
        ;;
  *)
        echo $"Usage: $prog {start|stop|restart|condrestart|reload|status|graceful|help|configtest}"
        exit 1
esac

exit $RETVAL

ちゃんと実行権限を付与してくださいね。

#useradd -s /sbin/nologin httpd
# /etc/init.d/httpd start
Starting httpd:                                            [  OK  ]

これで起動出来ました。今回は起動まで。次回から、細かい設定を変更していきます。