Linux-apache httd.conf文件詳解
阿新 • • 發佈：2017-05-14
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/* */
//管理員的郵箱，如果出現問題，會在首頁顯示
ServerAdmin [email protected]
#
# 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 this is not set to valid DNS name for your host, server-generated
# redirections will not work. See also the UseCanonicalName directive.
#
# If your host doesn‘t have a registered DNS name, enter its IP address here.
# You will have to access it by its address anyway, and this will make
# redirections work in a sensible way.
#ServerName www.example.com:80
默認是不需要指定的，服務器通過名字解析過程來獲得自己的名字，但如果解析有問題（如反向解析不正確），或者沒有DNS名字，也可以在這裏指定IP地址，當這項不正確的時候服務器不能正常啟動。前面啟動Apache時候提示正在啟動 httpd：httpd: apr_sockaddr_info_get() failed forjustin httpd: Could not reliably determine the server‘s fully qualified domain name, using 127.0.0.1forServerName，解決方法就是啟動該項把www.example.com:80修改為自己的域名或者直接修改為localhost
# UseCanonicalName: Determines how Apache constructs self-referencing
# URLs and the SERVER_NAME and SERVER_PORT variables.
# When set "Off", Apache will use the Hostname and Port supplied
# by the client. When set "On", Apache will use the value of the
# ServerName directive.
UseCanonicalName Off
//如果客戶端提供了主機名和端口，Apache將會使用客戶端提供的這些信息來構建自引用URL。這些值與用於實現基於域名的虛擬主機的值相同，並且對於同樣的客戶端可用。CGI變量SERVER_NAME和SERVER_PORT也會由客戶端提供的值來構建
# DocumentRoot: The directory out of which you will serve your
# documents. By default, all requests are taken from this directory, but
# symbolic links and aliases may be used to point to other locations.
DocumentRoot "/var/www/html"
//apache的默認web站點目錄路徑，結尾不要添加斜線
#
# Each directory to which Apache has access can be configured with respect
# to which services and features are allowed and/or disabled in that
# directory (and its subdirectories).
#
# First, we configure the "default" to be a very restrictive set of
# features.
#行為對根目錄的限制
<Directory />
Options FollowSymLinks #followsymlinks表示允許使用符號鏈接，默認為禁用
AllowOverride None # 表示禁止用戶對目錄配置文件(.htaccess進行修改)重載，普通站點不建議開啟
</Directory>
# Note that from this point forward you must specifically allow
# particular features to be enabled - so if something‘s not working as
# you might expect, make sure that you have specifically enabled it
# below.
#
#
# This should be changed to whatever you set DocumentRoot to.
<Directory "/var/www/html">
#
# Possible values for the Options directive are "None", "All",
# or any combination of:
# Indexes Includes FollowSymLinks SymLinksifOwnerMatch ExecCGI MultiViews
#
# Note that "MultiViews" must be named *explicitly* --- "Options All"
# doesn‘t give it to you.
#
# The Options directive is both complicated and important. Please see
# http://httpd.apache.org/docs/2.2/mod/core.html#options
# for more information.
#
Options Indexes FollowSymLinks
#
# AllowOverride controls what directives may be placed in .htaccess files.
# It can be "All", "None", or any combination of the keywords:
# Options FileInfo AuthConfig Limit
#
AllowOverride None
#
# Controls who can get stuff from this server.
#
Order allow,deny
Allow from all
</Directory>
//對/var/www/html目錄的一個權限的設置，options中Indexes表示當網頁不存在的時候允許索引顯示目錄中的文件，FollowSymLinks是否允許訪問符號鏈接文件。有的選項有ExecCGI表是否使用CGI，如Options Includes ExecCGI FollowSymLinks表示允許服務器執行CGI及SSI，禁止列出目錄。SymLinksOwnerMatch表示當符號鏈接的文件和目標文件為同一用戶擁有時才允許訪問。AllowOverrideNone表示不允許這個目錄下的訪問控制文件來改變這裏的配置，這也意味著不用查看這個目錄下的訪問控制文件，修改為：AllowOverride All 表示允許.htaccess。Order對頁面的訪問控制順序後面的一項是默認選項，如allow，deny則默認是deny，Allowfromall表示允許所有的用戶，通過和上一項結合可以控制對網站的訪問控制
# UserDir: The name of the directory that is appended onto a user‘s home
# directory if a ~user request is received.
#
# The path to the end user account ‘public_html‘ directory must be
# accessible to the webserver userid. This usually means that ~userid
# must have permissions of 711, ~userid/public_html must have permissions
# of 755, and documents contained therein must be world-readable.
# Otherwise, the client will only receive a "403 Forbidden" message.
#
# See also: http://httpd.apache.org/docs/misc/FAQ.html#forbidden
#
<IfModule mod_userdir.c>
#
# UserDir is disabled by default since it can confirm the presence
# of a username on the system (depending on home directory
# permissions).
UserDir disabled
//是否允許用戶訪問其家目錄，默認是不允許
# To enable requests to /~user/ to serve the user‘s public_html
# directory, remove the "UserDir disabled" line above, and uncomment
# the following line instead:
#
#UserDir public_html
</IfModule>
#
# Control access to UserDir directories. The following is an example
# for a site where these directories are restricted to read-only.
#<Directory /home/*/public_html>
# AllowOverride FileInfo AuthConfig Limit
# Options MultiViews Indexes SymLinksIfOwnerMatch IncludesNoExec
# <Limit GET POST OPTIONS>
# Order allow,deny
# Allow from all
# </Limit>
# <LimitExcept GET POST OPTIONS>
# Order deny,allow
# Deny from all
# </LimitExcept>
#</Directory>
//如果允許訪問用戶的家目錄中的網頁文件，則取消以上註釋，並對其中進行修改
# DirectoryIndex: sets the file that Apache will serve if a directory
# is requested.
#
# The index.html.var file (a type-map) is used to deliver content-
# negotiated documents. The MultiViews Option can be used for the
# same purpose, but it is much slower.
DirectoryIndex index.html index.html.var
//指定所要訪問的主頁的默認主頁名字，默認首頁文件名為index.html
# AccessFileName: The name of the file to look for in each directory
# for additional configuration directives. See also the AllowOverride
# directive.
AccessFileName .htaccess
//定義每個目錄下的訪問控制文件名，缺省為.htaccess
# The following lines prevent .htaccess and .htpasswd files from being
# viewed by Web clients.
<Files ~ "^\.ht">
Order allow,deny
Deny from all
Satisfy All
</Files>
//控制不讓web上的用戶來查看.htpasswd和.htaccess這兩個文件
# TypesConfig describes where the mime.types file (or equivalent) is
# to be found.
TypesConfig /etc/mime.types
//用於設置保存有不同MIME類型數據的文件名
# DefaultType is the default MIME type the server will use for a document
# if it cannot otherwise determine one, such as from filename extensions.
# If your server contains mostly text or HTML documents, "text/plain" is
# a good value. If most of your content is binary, such as applications
# or images, you may want to use "application/octet-stream" instead to
# keep browsers from trying to display binary files as though they are
# text.
DefaultType text/plain
#默認的網頁的類型
# The mod_mime_magic module allows the server to use various hints from the
# contents of the file itself to determine its type. The MIMEMagicFile
# directive tells the module where the hint definitions are located.
<IfModule mod_mime_magic.c>
# MIMEMagicFile /usr/share/magic.mime
MIMEMagicFile conf/magic
</IfModule>
//指定判斷文件真實MIME類型功能的模塊
#
# HostnameLookups: Log the names of clients or just their IP addresses
# e.g., www.apache.org (on) or 204.62.129.132 (off).
# The default is off because it‘d be overall better for the net if people
# had to knowingly turn this feature on, since enabling it means that
# each client request will result in AT LEAST one lookup request to the
# nameserver.
HostnameLookups Off
/打開此項功能時，在記錄日誌的時候同時記錄主機名，這需要服務器來反向解析域名，增加了服務器的負載，通常不建議開啟
# EnableMMAP: Control whether memory-mapping is used to deliver
# files (assuming that the underlying OS supports it).
# The default is on; turn this off if you serve from NFS-mounted
# filesystems. On some systems, turning it off (regardless of
# filesystem) can improve performance; for details, please see
# http://httpd.apache.org/docs/2.2/mod/core.html#enablemmap
EnableMMAP off
//是否允許內存映射：如果httpd在傳送過程中需要讀取一個文件的內容，它是否可以使用內存映射。如果為on表示如果操作系統支持的話，將使用內存映射。在一些多核處理器的系統上，這可能會降低性能，如果在掛載了NFS的DocumentRoot上如果開啟此項功能，可能造成因為分段而造成httpd崩潰
# EnableSendfile: Control whether the sendfile kernel support is
# used to deliver files (assuming that the OS supports it).
# The default is on; turn this off if you serve from NFS-mounted
# filesystems. Please see
# http://httpd.apache.org/docs/2.2/mod/core.html#enablesendfile
EnableSendfile off
//個指令控制httpd是否可以使用操作系統內核的sendfile支持來將文件發送到客戶端。默認情況下，當處理一個請求並不需要訪問文件內部的數據時(比如發送一個靜態的文件內容)，如果操作系統支持，Apache將使用sendfile將文件內容直接發送到客戶端而並不讀取文件
#
# ErrorLog: The location of the error log file.
# If you do not specify an ErrorLog directive within a <VirtualHost>
# container, error messages relating to that virtual host will be
# logged here. If you *do* define an error logfile for a <VirtualHost>
# container, that host‘s errors will be logged there and not here.
ErrorLog logs/error_log
//錯誤日誌存放的位置
# LogLevel: Control the number of messages logged to the error_log.
# Possible values include: debug, info, notice, warn, error, crit,
# alert, emerg.
LogLevel warn
//Apache日誌的級別
# The following directives define some format nicknames for use with
# a CustomLog directive (see below).
LogFormat "%h %l %u %t \"%r\" %>s %b \"%{Referer}i\" \"%{User-Agent}i\"" combined
LogFormat "%h %l %u %t \"%r\" %>s %b" common
LogFormat "%{Referer}i -> %U" referer
LogFormat "%{User-agent}i" agent
//定義了日誌的格式，並用不同的代號表示
# "combinedio" includes actual counts of actual bytes received (%I) and sent (%O); this
# requires the mod_logio module to be loaded.
#LogFormat "%h %l %u %t \"%r\" %>s %b \"%{Referer}i\" \"%{User-Agent}i\" %I %O" combinedio
#
# The location and format of the access logfile (Common Logfile Format).
# If you do not define any access logfiles within a <VirtualHost>
# container, they will be logged here. Contrariwise, if you *do*
# define per-<VirtualHost> access logfiles, transactions will be
# logged therein and *not* in this file.
CustomLog logs/access_log common
//日誌記錄的位置，這裏面使用了相對路徑，所以ServerRoot需要指出，日誌位置就存放在/etc/httpd/logs
# If you would like to have separate agent and referer logfiles, uncomment
# the following directives.
#
#CustomLog logs/referer_log referer
#CustomLog logs/agent_log agent
#
# For a single logfile with access, agent, and referer information
# (Combined Logfile Format), use the following directive:
#
CustomLog logs/access_log combined
#
# Optionally add a line containing the server version and virtual host
# name to server-generated pages (internal error documents, FTP directory
# listings, mod_status and mod_info output etc., but not CGI generated
# documents or custom error documents).
# Set to "EMail" to also include a mailto: link to the ServerAdmin.
# Set to one of: On | Off | EMail
#
ServerSignature On
//當客戶請求的網頁不存在，或者錯誤的時候是否提示apache的版本的一些信息
#
# Aliases: Add here as many aliases as you need (with no limit). The format is
# Alias fakename realname
#
# Note that if you include a trailing / on fakename then the server will
# require it to be present in the URL. So "/icons" isn‘t aliased in this
# example, only "/icons/". If the fakename is slash-terminated, then the
# realname must also be slash terminated, and if the fakename omits the
# trailing slash, the realname must also omit it.
#
# We include the /icons/ alias for FancyIndexed directory listings. If you
# do not use FancyIndexing, you may comment this out.
Alias /icons/ "/var/www/icons/"
//義一些不在DocumentRoot下的文件，而可以將其映射到網頁根目錄中，這也是訪問其他目錄的一種方法，但在聲明的時候切記目錄後面加”/”
<Directory "/var/www/icons">
Options Indexes MultiViews FollowSymLinks
AllowOverride None
Order allow,deny
Allow from all
</Directory>
//定義對/var/www/icons/的權限，修改為 Options MultiViews FollowSymLinks表示不在瀏覽器上顯示樹狀目錄結構
#
# WebDAV module configuration section.
<IfModule mod_dav_fs.c>
# Location of the WebDAV lock database.
DAVLockDB /var/lib/dav/lockdb
</IfModule>
//對mod_dav_fs.c模塊兒的管理
# ScriptAlias: This controls which directories contain server scripts.
# ScriptAliases are essentially the same as Aliases, except that
# documents in the realname 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/ "/var/www/cgi-bin/"
//對CGI模塊兒的的別名，與Alias相似
#
# "/var/www/cgi-bin" should be changed to whatever your ScriptAliased
# CGI directory exists, if you have that configured.
//對/var/www/cgi-bin文件夾的管理，方法同上
<Directory "/var/www/cgi-bin">
AllowOverride None
Options None
Order allow,deny
Allow from all
</Directory>
#
# Redirect allows you to tell clients about documents which used to exist in
# your server‘s namespace, but do not anymore. This allows you to tell the
# clients where to look for the relocated document.
# Example:
Redirect permanent /foo http://www.example.com/bar
//Redirect參數是用來重寫URL的，當瀏覽器訪問服務器上的一個已經不存在的資源的時候，服務器返回給瀏覽器新的URL，告訴瀏覽器從該URL中獲取資源。這主要用於原來存在於服務器上的文檔改變位置之後，又需要能夠使用老URL能訪問到原網頁
# Directives controlling the display of server-generated directory listings.
#
#
# IndexOptions: Controls the appearance of server-generated directory
# listings.
IndexOptions FancyIndexing VersionSort NameWidth=* HTMLTable Charset=UTF-8
//當一個HTTP請求的URL為一個目錄的時候，服務器返回這個目錄中的索引文件，如果目錄中不存在索引文件，並且服務器有許可顯示目錄文件列表的時候，就會顯示這個目錄中的文件列表，為了使得這個文件列表能具有可理解性，而不僅僅是一個簡單的列表，就需要前這些參數。如果使用了IndexOptionsFancyIndexing選項，可以讓服務器針對不同的文件引用不同的圖標。如果沒有就使用DefaultIcon定義缺省圖標。同樣，使用AddDescription可以為不同類型的文檔介入描述
#
# AddIcon* directives tell the server which icon to show for different
# files or filename extensions. These are only displayed for
# FancyIndexed directories.
#
//添加一些支持文件
AddIconByEncoding (CMP,/icons/compressed.gif) x-compress x-gzip
AddIconByType (TXT,/icons/text.gif) text/*
AddIconByType (IMG,/icons/image2.gif) image/*
AddIconByType (SND,/icons/sound2.gif) audio/*
AddIconByType (VID,/icons/movie.gif) video/*
AddIcon /icons/binary.gif .bin .exe
AddIcon /icons/binhex.gif .hqx
AddIcon /icons/tar.gif .tar
AddIcon /icons/world2.gif .wrl .wrl.gz .vrml .vrm .iv
AddIcon /icons/compressed.gif .Z .z .tgz .gz .zip
AddIcon /icons/a.gif .ps .ai .eps
AddIcon /icons/layout.gif .html .shtml .htm .pdf
AddIcon /icons/text.gif .txt
AddIcon /icons/c.gif .c
AddIcon /icons/p.gif .pl .py
AddIcon /icons/f.gif .for
AddIcon /icons/dvi.gif .dvi
AddIcon /icons/uuencoded.gif .uu
AddIcon /icons/script.gif .conf .sh .shar .csh .ksh .tcl
AddIcon /icons/tex.gif .tex
AddIcon /icons/bomb.gif /core
AddIcon /icons/back.gif ..
AddIcon /icons/hand.right.gif README
AddIcon /icons/folder.gif ^^DIRECTORY^^
AddIcon /icons/blank.gif ^^BLANKICON^^
#
# DefaultIcon is which icon to show for files which do not have an icon
# explicitly set.
#
DefaultIcon /icons/unknown.gif
#
# AddDescription allows you to place a short description after a file in
# server-generated indexes. These are only displayed for FancyIndexed
# directories.
# Format: AddDescription "description" filename
#
#AddDescription "GZIP compressed document" .gz
#AddDescription "tar archive" .tar
#AddDescription "GZIP compressed tar archive" .tgz
#
# ReadmeName is the name of the README file the server will look for by
# default, and append to directory listings.
#
# HeaderName is the name of a file which should be prepended to
# directory indexes.
ReadmeName README.html
HeaderName HEADER.html
#
# IndexIgnore is a set of filenames which directory indexing should ignore
# and not include in the listing. Shell-style wildcarding is permitted.
#
IndexIgnore .??* *~ *# HEADER* README* RCS CVS *,v *,t
#
# DefaultLanguage and AddLanguage allows you to specify the language of
# a document. You can then use content negotiation to give a browser a
# file in a language the user can understand.
#
# Specify a default language. This means that all data
# going out without a specific language tag (see below) will
# be marked with this one. You probably do NOT want to set
# this unless you are sure it is correct for all cases.
#
# * It is generally better to not mark a page as
# * being a certain language than marking it with the wrong
# * language!
#
# DefaultLanguage nl
#
# Note 1: The suffix does not have to be the same as the language
# keyword --- those with documents in Polish (whose net-standard
# language code is pl) may wish to use "AddLanguage pl .po" to
# avoid the ambiguity with the common suffix for perl scripts.
#
# Note 2: The example entries below illustrate that in some cases
# the two character ‘Language‘ abbreviation is not identical to
# the two character ‘Country‘ code for its country,
# E.g. ‘Danmark/dk‘ versus ‘Danish/da‘.
#
# Note 3: In the case of ‘ltz‘ we violate the RFC by using a three char
# specifier. There is ‘work in progress‘ to fix this and get
# the reference data for rfc1766 cleaned up.
#
# Catalan (ca) - Croatian (hr) - Czech (cs) - Danish (da) - Dutch (nl)
# English (en) - Esperanto (eo) - Estonian (et) - French (fr) - German (de)
# Greek-Modern (el) - Hebrew (he) - Italian (it) - Japanese (ja)
# Korean (ko) - Luxembourgeois* (ltz) - Norwegian Nynorsk (nn)
# Norwegian (no) - Polish (pl) - Portugese (pt)
# Brazilian Portuguese (pt-BR) - Russian (ru) - Swedish (sv)
# Simplified Chinese (zh-CN) - Spanish (es) - Traditional Chinese (zh-TW)
#
AddLanguage ca .ca
AddLanguage cs .cz .cs
AddLanguage da .dk
AddLanguage de .de
AddLanguage el .el
AddLanguage en .en
AddLanguage eo .eo
AddLanguage es .es
AddLanguage et .et
AddLanguage fr .fr
AddLanguage he .he
AddLanguage hr .hr
AddLanguage it .it
AddLanguage ja .ja
AddLanguage ko .ko
AddLanguage ltz .ltz
AddLanguage nl .nl
AddLanguage nn .nn
AddLanguage no .no
AddLanguage pl .po
AddLanguage pt .pt
AddLanguage pt-BR .pt-br
AddLanguage ru .ru
AddLanguage sv .sv
AddLanguage zh-CN .zh-cn
AddLanguage zh-TW .zh-tw
#
# LanguagePriority allows you to give precedence to some languages
# in case of a tie during content negotiation.
#
# Just list the languages in decreasing order of preference. We have
# more or less alphabetized them here. You probably want to change this.
#
LanguagePriority en ca cs da de el eo es et fr he hr it ja ko ltz nl nn no pl pt pt-BR ru sv zh-CN zh-TW
#
# ForceLanguagePriority allows you to serve a result page rather than
# MULTIPLE CHOICES (Prefer) [in case of a tie] or NOT ACCEPTABLE (Fallback)
# [in case no accepted languages matched the available variants]
#
ForceLanguagePriority Prefer Fallback
#
# Specify a default charset for all content served; this enables
# interpretation of all content as UTF-8 by default. To use the
# default browser choice (ISO-8859-1), or to allow the META tags
# in HTML content to override this choice, comment out this
# directive:
#
AddDefaultCharset UTF-8
#
# AddType allows you to add to or override the MIME configuration
# file mime.types for specific file types.
#
#AddType application/x-tar .tgz
#
# AddEncoding allows you to have certain browsers uncompress
# information on the fly. Note: Not all browsers support this.
# Despite the name similarity, the following Add* directives have nothing
# to do with the FancyIndexing customization directives above.
#
#AddEncoding x-compress .Z
#AddEncoding x-gzip .gz .tgz
# If the AddEncoding directives above are commented-out, then you
# probably should define those extensions to indicate media types:
#
AddType application/x-compress .Z
AddType application/x-gzip .gz .tgz
#
# MIME-types for downloading Certificates and CRLs
#
AddType application/x-x509-ca-cert .crt
AddType application/x-pkcs7-crl .crl
#
# AddHandler allows you to map certain file extensions to "handlers":
# actions unrelated to filetype. These can be either built into the server
# or added with the Action directive (see below)
#
# To use CGI scripts outside of ScriptAliased directories:
# (You will also need to add "ExecCGI" to the "Options" directive.)
#
#AddHandler cgi-script .cgi
#
# For files that include their own HTTP headers:
#
#AddHandler send-as-is asis
#
# For type maps (negotiated resources):
# (This is enabled by default to allow the Apache "It Worked" page
# to be distributed in multiple languages.)
#
AddHandler type-map var
#
# Filters allow you to process content before it is sent to the client.
#
# To parse .shtml files for server-side includes (SSI):
# (You will also need to add "Includes" to the "Options" directive.)
#
AddType text/html .shtml
AddOutputFilter INCLUDES .shtml
#
# Action lets you define media types that will execute a script whenever
# a matching file is called. This eliminates the need for repeated URL
# pathnames for oft-used CGI file processors.
# Format: Action media/type /cgi-script/location
# Format: Action handler-name /cgi-script/location
#
#
# Customizable error responses come in three flavors:
# 1) plain text 2) local redirects 3) external redirects
#
# Some examples:
#ErrorDocument 500 "The server made a boo boo."
#ErrorDocument 404 /missing.html
#ErrorDocument 404 "/cgi-bin/missing_handler.pl"
#ErrorDocument 402 http://www.example.com/subscription_info.html
#
#
# Putting this all together, we can internationalize error responses.
#
# We use Alias to redirect any /error/HTTP_<error>.html.var response to
# our collection of by-error message multi-language collections. We use
# includes to substitute the appropriate text.
#
# You can modify the messages‘ appearance without changing any of the
# default HTTP_<error>.html.var files by adding the line:
#
# Alias /error/include/ "/your/include/path/"
#
# which allows you to create your own set of files by starting with the
# /var/www/error/include/ files and
# copying them to /your/include/path/, even on a per-VirtualHost basis.
#
Alias /error/ "/var/www/error/"
<IfModule mod_negotiation.c>
<IfModule mod_include.c>
<Directory "/var/www/error">
AllowOverride None
Options IncludesNoExec
AddOutputFilter Includes html
AddHandler type-map var
Order allow,deny
Allow from all
LanguagePriority en es de fr
ForceLanguagePriority Prefer Fallback
</Directory>
//對/var/www/error網頁的權限及操作
# ErrorDocument 400 /error/HTTP_BAD_REQUEST.html.var
# ErrorDocument 401 /error/HTTP_UNAUTHORIZED.html.var
# ErrorDocument 403 /error/HTTP_FORBIDDEN.html.var
# ErrorDocument 404 /error/HTTP_NOT_FOUND.html.var
# ErrorDocument 405 /error/HTTP_METHOD_NOT_ALLOWED.html.var
# ErrorDocument 408 /error/HTTP_REQUEST_TIME_OUT.html.var
# ErrorDocument 410 /error/HTTP_GONE.html.var
# ErrorDocument 411 /error/HTTP_LENGTH_REQUIRED.html.var
# ErrorDocument 412 /error/HTTP_PRECONDITION_FAILED.html.var
# ErrorDocument 413 /error/HTTP_REQUEST_ENTITY_TOO_LARGE.html.var
# ErrorDocument 414 /error/HTTP_REQUEST_URI_TOO_LARGE.html.var
# ErrorDocument 415 /error/HTTP_UNSUPPORTED_MEDIA_TYPE.html.var
# ErrorDocument 500 /error/HTTP_INTERNAL_SERVER_ERROR.html.var
# ErrorDocument 501 /error/HTTP_NOT_IMPLEMENTED.html.var
# ErrorDocument 502 /error/HTTP_BAD_GATEWAY.html.var
# ErrorDocument 503 /error/HTTP_SERVICE_UNAVAILABLE.html.var
# ErrorDocument 506 /error/HTTP_VARIANT_ALSO_VARIES.html.var
</IfModule>
</IfModule>
#
# The following directives modify normal HTTP response behavior to
# handle known problems with browser implementations.
#
BrowserMatch "Mozilla/2" nokeepalive
BrowserMatch "MSIE 4\.0b2;" nokeepalive downgrade-1.0 force-response-1.0
BrowserMatch "RealPlayer 4\.0" force-response-1.0
BrowserMatch "Java/1\.0" force-response-1.0
BrowserMatch "JDK/1\.0" force-response-1.0
#
# The following directive disables redirects on non-GET requests for
# a directory that does not include the trailing slash. This fixes a
# problem with Microsoft WebFolders which does not appropriately handle
# redirects for folders with DAV methods.
# Same deal with Apple‘s DAV filesystem and Gnome VFS support for DAV.
//設置特殊的參數，以保證對老版本瀏覽器的兼容，並支持新瀏覽器的特性
BrowserMatch "Microsoft Data Access Internet Publishing Provider" redirect-carefully
BrowserMatch "MS FrontPage" redirect-carefully
BrowserMatch "^WebDrive" redirect-carefully
BrowserMatch "^WebDAVFS/1.[0123]" redirect-carefully
BrowserMatch "^gnome-vfs/1.0" redirect-carefully
BrowserMatch "^XML Spy" redirect-carefully
BrowserMatch "^Dreamweaver-WebDAV-SCM1" redirect-carefully
#
# Allow server status reports generated by mod_status,
# with the URL of http://servername/server-status
# Change the ".example.com" to match your domain to enable.
#
#<Location /server-status>
# SetHandler server-status
# Order deny,allow
# Deny from all
# Allow from .example.com
#</Location>
#
# Allow remote server configuration reports, with the URL of
# http://servername/server-info (requires that mod_info.c be loaded).
# Change the ".example.com" to match your domain to enable.
#
#<Location /server-info>
# SetHandler server-info
# Order deny,allow
# Deny from all
# Allow from .example.com
#</Location>
#
# Proxy Server directives. Uncomment the following lines to
# enable the proxy server:
#
#<IfModule mod_proxy.c>
#ProxyRequests On
#
#<Proxy *>
# Order deny,allow
# Deny from all
# Allow from .example.com
#</Proxy>
#
# Enable/disable the handling of HTTP/1.1 "Via:" headers.
# ("Full" adds the server version; "Block" removes all outgoing Via: headers)
# Set to one of: Off | On | Full | Block
#
#ProxyVia On
#
# To enable a cache of proxied content, uncomment the following lines.
# See http://httpd.apache.org/docs/2.2/mod/mod_cache.html for more details.
#
#<IfModule mod_disk_cache.c>
# CacheEnable disk /
# CacheRoot "/var/cache/mod_proxy"
#</IfModule>
#
#</IfModule>
# End of proxy directives.
### Section 3: Virtual Hosts
#
# VirtualHost: If you want to maintain multiple domains/hostnames on your
# machine you can setup VirtualHost containers for them. Most configurations
# use only name-based virtual hosts so the server doesn‘t need to worry about
# IP addresses. This is indicated by the asterisks in the directives below.
#
# Please see the documentation at
# <URL:http://httpd.apache.org/docs/2.2/vhosts/>
# for further details before you try to setup virtual hosts.
#
# You may use the command line option ‘-S‘ to verify your virtual host
# configuration.
#
# Use name-based virtual hosting.
#
#NameVirtualHost *:80
#
# NOTE: NameVirtualHost cannot be used without a port specifier
# (e.g. :80) if mod_ssl is being used, due to the nature of the
# SSL protocol.
#
//虛擬主機配置
# VirtualHost example:
# Almost any Apache directive may go into a VirtualHost container.
# The first VirtualHost section is used for requests without a known
# server name.
#
#<VirtualHost *:80>
# ServerAdmin [email protected]Linux-apache httd.conf文件詳解
# This is the main Apache server configuration file. It contains the # configuration directives that give the server its instructions. # See <URL:http://httpd.apache.org/docs/2.2/> for detailed information. # In particular, see # <URL:http://httpd.apache.org/docs/2.2/mod/directives.html> # for a discussion of each configuration directive. # # # Do NOT simply read the instructions in here without understanding # what they do. They‘re here only as hints or reminders. If you are unsure # consult the online docs. You have been warned. # # The configuration directives are grouped into three basic sections: # 1. Directives that control the operation of the Apache server process as a # whole (the ‘global environment‘). # 2. Directives that define the parameters of the ‘main‘ or ‘default‘ server, # which responds to requests that aren‘t handled by a virtual host. # These directives also provide default values for the settings # of all virtual hosts. # 3. Settings for virtual hosts, which allow Web requests to be sent to # different IP addresses or hostnames and have them handled by the # same Apache server process. # # Configuration and logfile names: If the filenames you specify for many # of the server‘s control files begin with "/" (or "drive:/" for Win32), the # server will use that explicit path. If the filenames do *not* begin # with "/", the value of ServerRoot is prepended -- so "logs/foo.log" # with ServerRoot set to "/etc/httpd" will be interpreted by the # server as "/etc/httpd/logs/foo.log". # ### Section 1: Global Environment # # The directives in this section affect the overall operation of Apache, # such as the number of concurrent requests it can handle or where it # can find its configuration files. # # # Don‘t give away too much information about all the subcomponents # we are running. Comment out this line if you don‘t mind remote sites # finding out what major optional modules you are runnin ServerTokens OS //在出現錯誤頁的時候是否顯示服務器操作系統的名稱，ServerTokens Prod為不顯示 # ServerRoot: The top of the directory tree under which the server‘s # configuration, error, and log files are kept. # # NOTE! If you intend to place this on an NFS (or otherwise network) # mounted filesystem then please read the LockFile documentation # (available at <URL:http://httpd.apache.org/docs/2.2/mod/mpm_common.html#lockfile>); # you will save yourself a lot of trouble. # # Do NOT add a slash at the end of the directory path. ServerRoot "/etc/httpd" //用於指定Apache的運行目錄，服務啟動之後自動將目錄改變為當前目錄，在後面使用到的所有相對路徑都是想對這個目錄下 # PidFile: The file in which the server should record its process # identification number when it starts. Note the PIDFILE variable in # /etc/sysconfig/httpd must be set appropriately if this location is # changed. PidFile run/httpd.pid //記錄httpd守護進程的pid號碼，這是系統識別一個進程的方法，系統中httpd進程可以有多個，但這個PID對應的進程是其他的父進程 # Timeout: The number of seconds before receives and sends time out. Timeout 60 //第二次連接前服務器與客戶端斷開的時間 # KeepAlive: Whether or not to allow persistent connections (more than # one request per connection). Set to "Off" to deactivate. KeepAlive Off //是否持續連接（因為每次連接都得三次握手，如果是訪問量不大，建議打開此項，如果網站訪問量比較大關閉此項比較好），修改為：KeepAlive On 表示允許程序性聯機 # MaxKeepAliveRequests: The maximum number of requests to allow # during a persistent connection. Set to 0 to allow an unlimited amount. # We recommend you leave this number high, for maximum performance. MaxKeepAliveRequests 100 //限制一個連接的最大請求數，0表示不限制 # KeepAliveTimeout: Number of seconds to wait for the next request from the # same client on the same connection. # KeepAliveTimeout 15 // ## ## Server-Pool Size Regulation (MPM specific) //apche的兩種工作模式 prefork模式和worker模式 # prefork MPM # StartServers: number of server processes to start # MinSpareServers: minimum number of server processes which are kept spare # MaxSpareServers: maximum number of server processes which are kept spare # ServerLimit: maximum value for MaxClients for the lifetime of the server # MaxClients: maximum number of server processes allowed to start # MaxRequestsPerChild: maximum number of requests a server process serves <IfModule prefork.c> StartServers 8 MinSpareServers 5 MaxSpareServers 20 ServerLimit 256 MaxClients 256 MaxRequestsPerChild 4000 </IfModule> 系統默認的模塊，表示為每個訪問啟動一個進程（即當有多個連接公用一個進程的時候，在同一時刻只能有一個獲得服務）。 StartServer 開始服務時啟動8個進程，最小空閑5個進程，最多空閑20個進程。 ServerLimit 設置了MaxClients最大允許配置的數值 MaxClient 限制同一時刻客戶端的最大連接請求數量超過的要進入等候隊列。 MaxRequestsPerChild 每個進程生存期內允許服務的最大請求數量，0表示永不結束 # worker MPM # StartServers: initial number of server processes to start # MaxClients: maximum number of simultaneous client connections # MinSpareThreads: minimum number of worker threads which are kept spare # MaxSpareThreads: maximum number of worker threads which are kept spare # ThreadsPerChild: constant number of worker threads in each server process # MaxRequestsPerChild: maximum number of requests a server process serves <IfModule worker.c> StartServers 4 MaxClients 300 MinSpareThreads 25 MaxSpareThreads 75 ThreadsPerChild 25 MaxRequestsPerChild 0 </IfModule> 為Apache配置線程訪問，即每對WEB服務訪問啟動一個線程，這樣對內存占用率比較小。 ServerLimit服務器允許配置進程數的上限。 ThreadLimit每個子進程可能配置的線程上限 StartServers啟動兩個httpd進程， MaxClients同時最多能發起250個訪問，超過的要進入隊列等待，其大小有ServerLimit和ThreadsPerChild的乘積決定 ThreadsPerChild每個子進程生存期間常駐執行線程數，子線程建立之後將不再增加 MaxRequestsPerChild每個進程啟動的最大線程數，如達到限制數時進程將結束，如置為0則子線程永不結束 0111# Listen: Allows you to bind Apache to specific IP addresses and/or # ports, in addition to the default. See also the <VirtualHost> # directive. # # Change this to Listen on specific IP addresses as shown below to # prevent Apache from glomming onto all bound IP addresses (0.0.0.0) #Listen 12.34.56.78:80 Listen 80 //監聽的端口，如有多塊網卡，默認監聽所有網卡 # 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 //啟動時加載的模塊 LoadModule auth_basic_module modules/mod_auth_basic.so LoadModule auth_digest_module modules/mod_auth_digest.so LoadModule authn_file_module modules/mod_authn_file.so LoadModule authn_alias_module modules/mod_authn_alias.so LoadModule authn_anon_module modules/mod_authn_anon.so LoadModule authn_dbm_module modules/mod_authn_dbm.so LoadModule authn_default_module modules/mod_authn_default.so LoadModule authz_host_module modules/mod_authz_host.so LoadModule authz_user_module modules/mod_authz_user.so LoadModule authz_owner_module modules/mod_authz_owner.so LoadModule authz_groupfile_module modules/mod_authz_groupfile.so LoadModule authz_dbm_module modules/mod_authz_dbm.so LoadModule authz_default_module modules/mod_authz_default.so LoadModule ldap_module modules/mod_ldap.so LoadModule authnz_ldap_module modules/mod_authnz_ldap.so LoadModule include_module modules/mod_include.so LoadModule log_config_module modules/mod_log_config.so LoadModule logio_module modules/mod_logio.so LoadModule env_module modules/mod_env.so LoadModule ext_filter_module modules/mod_ext_filter.so LoadModule mime_magic_module modules/mod_mime_magic.so LoadModule expires_module modules/mod_expires.so LoadModule deflate_module modules/mod_deflate.so LoadModule headers_module modules/mod_headers.so LoadModule usertrack_module modules/mod_usertrack.so LoadModule setenvif_module modules/mod_setenvif.so LoadModule mime_module modules/mod_mime.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 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 substitute_module modules/mod_substitute.so LoadModule rewrite_module modules/mod_rewrite.so LoadModule proxy_module modules/mod_proxy.so LoadModule proxy_balancer_module modules/mod_proxy_balancer.so LoadModule proxy_ftp_module modules/mod_proxy_ftp.so LoadModule proxy_http_module modules/mod_proxy_http.so LoadModule proxy_ajp_module modules/mod_proxy_ajp.so LoadModule proxy_connect_module modules/mod_proxy_connect.so LoadModule cache_module modules/mod_cache.so LoadModule suexec_module modules/mod_suexec.so LoadModule disk_cache_module modules/mod_disk_cache.so LoadModule cgi_module modules/mod_cgi.so LoadModule version_module modules/mod_version.so # # The following modules are not loaded by default: # #LoadModule asis_module modules/mod_asis.so #LoadModule authn_dbd_module modules/mod_authn_dbd.so #LoadModule cern_meta_module modules/mod_cern_meta.so #LoadModule cgid_module modules/mod_cgid.so #LoadModule dbd_module modules/mod_dbd.so #LoadModule dumpio_module modules/mod_dumpio.so #LoadModule filter_module modules/mod_filter.so #LoadModule ident_module modules/mod_ident.so #LoadModule log_forensic_module modules/mod_log_forensic.so #LoadModule unique_id_module modules/mod_unique_id.so # # # Load config files from the config directory "/etc/httpd/conf.d". //加載配置文件 Include conf.d/*.conf # # ExtendedStatus controls whether Apache will generate "full" status # information (ExtendedStatus On) or just basic information (ExtendedStatus # Off) when the "server-status" handler is called. The default is Off. # #ExtendedStatus On # # 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. # . On SCO (ODT 3) use "User nouser" and "Group nogroup". # . On HPUX you may not be able to use shared memory as nobody, and the # suggested workaround is to create a user www and use that user. # NOTE that some ker nels refuse to setgid(Group) or semctl(IPC_SET) # when the value of (unsigned)Group is above 60000; # don‘t use Group #-1 on these systems! //apache的用戶和用戶組 User apache Group apache ### Section 2: ‘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. [email protected]