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Directive Quick Reference

The directive quick reference shows the usage, default, status, and context of each Apache configuration directive. For more information about each of these, see the Directive Dictionary.

The first column gives the directive name and usage. The second columns shows the default value of the directive, if a default exists. If the default is too large to display, the first characters will be followed by "+".

The third and fourth columns list the contexts where the directive is allowed and the status of the directive according to the legend tables below.

 A  |  B  |  C  |  D  |  E  |  F  |  G  |  H  |  I  |  K  |  L  |  M  |  N  |  O  |  P  |  R  |  S  |  T  |  U  |  V  |  W  |  X 
sserver config
vvirtual host
ddirectory
h.htaccess
CCore
MMPM
BBase
EExtension
XExperimental
AcceptFilter protocol accept_filtersC
Configures optimizations for a Protocol's Listener Sockets
AcceptMutex Default|method Default sM
Method that Apache uses to serialize multiple children accepting requests on network sockets
AcceptPathInfo On|Off|Default Default svdhC
Resources accept trailing pathname information
AccessFileName filename [filename] ... .htaccess svC
Name of the distributed configuration file
Action action-type cgi-script [virtual]svdhB
Activates a CGI script for a particular handler or content-type
AddAlt string file [file] ...svdhB
Alternate text to display for a file, instead of an icon selected by filename
AddAltByEncoding string MIME-encoding [MIME-encoding] ...svdhB
Alternate text to display for a file instead of an icon selected by MIME-encoding
AddAltByType string MIME-type [MIME-type] ...svdhB
Alternate text to display for a file, instead of an icon selected by MIME content-type
AddCharset charset extension [extension] ...svdhB
Maps the given filename extensions to the specified content charset
AddDefaultCharset On|Off|charset Off svdhC
Default charset parameter to be added when a response content-type is text/plain or text/html
AddDescription string file [file] ...svdhB
Description to display for a file
AddEncoding MIME-enc extension [extension] ...svdhB
Maps the given filename extensions to the specified encoding type
AddHandler handler-name extension [extension] ...svdhB
Maps the filename extensions to the specified handler
AddIcon icon name [name] ...svdhB
Icon to display for a file selected by name
AddIconByEncoding icon MIME-encoding [MIME-encoding] ...svdhB
Icon to display next to files selected by MIME content-encoding
AddIconByType icon MIME-type [MIME-type] ...svdhB
Icon to display next to files selected by MIME content-type
AddInputFilter filter[;filter...] extension [extension] ...svdhB
Maps filename extensions to the filters that will process client requests
AddLanguage MIME-lang extension [extension] ...svdhB
Maps the given filename extension to the specified content language
AddModuleInfo module-name stringsvE
Adds additional information to the module information displayed by the server-info handler
AddOutputFilter filter[;filter...] extension [extension] ...svdhB
Maps filename extensions to the filters that will process responses from the server
AddOutputFilterByType filter[;filter...] MIME-type [MIME-type] ...svdhC
assigns an output filter to a particular MIME-type
AddType MIME-type extension [extension] ...svdhB
Maps the given filename extensions onto the specified content type
Alias URL-path file-path|directory-pathsvB
Maps URLs to filesystem locations
AliasMatch regex file-path|directory-pathsvB
Maps URLs to filesystem locations using regular expressions
Allow from all|host|env=[!]env-variable [host|env=[!]env-variable] ...dhB
Controls which hosts can access an area of the server
AllowCONNECT port [port] ... 443 563 svE
Ports that are allowed to CONNECT through the proxy
AllowEncodedSlashes On|Off Off svC
Determines whether encoded path separators in URLs are allowed to be passed through
AllowOverride All|None|directive-type [directive-type] ... All dC
Types of directives that are allowed in .htaccess files
Anonymous user [user] ...dhE
Specifies userIDs that are allowed access without password verification
Anonymous_LogEmail On|Off On dhE
Sets whether the password entered will be logged in the error log
Anonymous_MustGiveEmail On|Off On dhE
Specifies whether blank passwords are allowed
Anonymous_NoUserID On|Off Off dhE
Sets whether the userID field may be empty
Anonymous_VerifyEmail On|Off Off dhE
Sets whether to check the password field for a correctly formatted email address
AuthBasicAuthoritative On|Off On dhB
Sets whether authorization and authentication are passed to lower level modules
AuthBasicProvider provider-name [provider-name] ... file dhB
Sets the authentication provider(s) for this location
AuthDBDUserPWQuery querydE
SQL query to look up a password for a user
AuthDBDUserRealmQuery querydE
SQL query to look up a password hash for a user and realm.
AuthDBMGroupFile file-pathdhE
Sets the name of the database file containing the list of user groups for authorization
AuthDBMType default|SDBM|GDBM|NDBM|DB default dhE
Sets the type of database file that is used to store passwords
AuthDBMUserFile file-pathdhE
Sets the name of a database file containing the list of users and passwords for authentication
AuthDefaultAuthoritative On|Off On dhB
Sets whether authentication is passed to lower level modules
AuthDigestAlgorithm MD5|MD5-sess MD5 dhE
Selects the algorithm used to calculate the challenge and response hashes in digest authentication
AuthDigestDomain URI [URI] ...dhE
URIs that are in the same protection space for digest authentication
AuthDigestNcCheck On|Off Off sE
Enables or disables checking of the nonce-count sent by the server
AuthDigestNonceFormat formatdhE
Determines how the nonce is generated
AuthDigestNonceLifetime seconds 300 dhE
How long the server nonce is valid
AuthDigestProvider provider-name [provider-name] ... file dhE
Sets the authentication provider(s) for this location
AuthDigestQop none|auth|auth-int [auth|auth-int] auth dhE
Determines the quality-of-protection to use in digest authentication
AuthDigestShmemSize size 1000 sE
The amount of shared memory to allocate for keeping track of clients
AuthGroupFile file-pathdhB
Sets the name of a text file containing the list of user groups for authorization
AuthLDAPBindDN distinguished-namedhE
Optional DN to use in binding to the LDAP server
AuthLDAPBindPassword passworddhE
Password used in conjuction with the bind DN
AuthLDAPCharsetConfig file-pathsE
Language to charset conversion configuration file
AuthLDAPCompareDNOnServer on|off on dhE
Use the LDAP server to compare the DNs
AuthLDAPDereferenceAliases never|searching|finding|always Always dhE
When will the module de-reference aliases
AuthLDAPGroupAttribute attributedhE
LDAP attributes used to check for group membership
AuthLDAPGroupAttributeIsDN on|off on dhE
Use the DN of the client username when checking for group membership
AuthLDAPRemoteUserAttribute uiddhE
Use the value of the attribute returned during the user query to set the REMOTE_USER environment variable
AuthLDAPRemoteUserIsDN on|off off dhE
Use the DN of the client username to set the REMOTE_USER environment variable
AuthLDAPUrl url [NONE|SSL|TLS|STARTTLS]dhE
URL specifying the LDAP search parameters
AuthName auth-domaindhC
Authorization realm for use in HTTP authentication
<AuthnProviderAlias baseProvider Alias> ... </AuthnProviderAlias>sE
Enclose a group of directives that represent an extension of a base authentication provider and referenced by the specified alias
AuthType Basic|DigestdhC
Type of user authentication
AuthUserFile file-pathdhB
Sets the name of a text file containing the list of users and passwords for authentication
AuthzDBMAuthoritative On|Off On dhE
Sets whether authorization will be passed on to lower level modules
AuthzDBMType default|SDBM|GDBM|NDBM|DB default dhE
Sets the type of database file that is used to store list of user groups
AuthzDefaultAuthoritative On|Off On dhB
Sets whether authorization is passed to lower level modules
AuthzGroupFileAuthoritative On|Off On dhB
Sets whether authorization will be passed on to lower level modules
AuthzLDAPAuthoritative on|off on dhE
Prevent other authentication modules from authenticating the user if this one fails
AuthzOwnerAuthoritative On|Off On dhE
Sets whether authorization will be passed on to lower level modules
AuthzUserAuthoritative On|Off On dhB
Sets whether authorization will be passed on to lower level modules
BalancerMember url [key=value [key=value ...]]dE
Add a member to a load balancing group
BrowserMatch regex [!]env-variable[=value] [[!]env-variable[=value]] ...svdhB
Sets environment variables conditional on HTTP User-Agent
BrowserMatchNoCase regex [!]env-variable[=value] [[!]env-variable[=value]] ...svdhB
Sets environment variables conditional on User-Agent without respect to case
BufferedLogs On|Off Off sB
Buffer log entries in memory before writing to disk
CacheDefaultExpire seconds 3600 (one hour) svE
The default duration to cache a document when no expiry date is specified.
CacheDirLength length 2 svE
The number of characters in subdirectory names
CacheDirLevels levels 3 svE
The number of levels of subdirectories in the cache.
CacheDisable url-stringsvE
Disable caching of specified URLs
CacheEnable cache_type url-stringsvE
Enable caching of specified URLs using a specified storage manager
CacheFile file-path [file-path] ...sX
Cache a list of file handles at startup time
CacheIgnoreCacheControl On|Off Off svE
Ignore request to not serve cached content to client
CacheIgnoreHeaders header-string [header-string] ... None svE
Do not store the given HTTP header(s) in the cache.
CacheIgnoreNoLastMod On|Off Off svE
Ignore the fact that a response has no Last Modified header.
CacheIgnoreQueryString On|Off Off svE
Ignore query string when caching
CacheLastModifiedFactor float 0.1 svE
The factor used to compute an expiry date based on the LastModified date.
CacheMaxExpire seconds 86400 (one day) svE
The maximum time in seconds to cache a document
CacheMaxFileSize bytes 1000000 svE
The maximum size (in bytes) of a document to be placed in the cache
CacheMinFileSize bytes 1 svE
The minimum size (in bytes) of a document to be placed in the cache
CacheNegotiatedDocs On|Off Off svB
Allows content-negotiated documents to be cached by proxy servers
CacheRoot directorysvE
The directory root under which cache files are stored
CacheStoreNoStore On|Off Off svE
Attempt to cache requests or responses that have been marked as no-store.
CacheStorePrivate On|Off Off svE
Attempt to cache responses that the server has marked as private
CGIMapExtension cgi-path .extensiondhC
Technique for locating the interpreter for CGI scripts
CharsetDefault charsetsvdhX
Charset to translate into
CharsetOptions option [option] ... DebugLevel=0 NoImpl +svdhX
Configures charset translation behavior
CharsetSourceEnc charsetsvdhX
Source charset of files
CheckCaseOnly on|off Off svdhE
Limits the action of the speling module to case corrections
CheckSpelling on|off Off svdhE
Enables the spelling module
ChrootDir /path/to/directorysM
Directory for apache to run chroot(8) after startup.
ContentDigest On|Off Off svdhC
Enables the generation of Content-MD5 HTTP Response headers
CookieDomain domainsvdhE
The domain to which the tracking cookie applies
CookieExpires expiry-periodsvdhE
Expiry time for the tracking cookie
CookieLog filenamesvB
Sets filename for the logging of cookies
CookieName token Apache svdhE
Name of the tracking cookie
CookieStyle Netscape|Cookie|Cookie2|RFC2109|RFC2965 Netscape svdhE
Format of the cookie header field
CookieTracking on|off off svdhE
Enables tracking cookie
CoreDumpDirectory directorysM
Directory where Apache attempts to switch before dumping core
CustomLog file|pipe format|nickname [env=[!]environment-variable]svB
Sets filename and format of log file
Dav On|Off|provider-name Off dE
Enable WebDAV HTTP methods
DavDepthInfinity on|off off svdE
Allow PROPFIND, Depth: Infinity requests
DavGenericLockDB file-pathsvdE
Location of the DAV lock database
DavLockDB file-pathsvE
Location of the DAV lock database
DavMinTimeout seconds 0 svdE
Minimum amount of time the server holds a lock on a DAV resource
DBDExptime time-in-seconds 300 svE
Keepalive time for idle connections
DBDKeep number 2 svE
Maximum sustained number of connections
DBDMax number 10 svE
Maximum number of connections
DBDMin number 1 svE
Minimum number of connections
DBDParams param1=value1[,param2=value2]svE
Parameters for database connection
DBDPersist On|OffsvE
Whether to use persistent connections
DBDPrepareSQL "SQL statement" labelsvE
Define an SQL prepared statement
DBDriver namesvE
Specify an SQL driver
DefaultIcon url-pathsvdhB
Icon to display for files when no specific icon is configured
DefaultLanguage MIME-langsvdhB
Sets all files in the given scope to the specified language
DefaultType MIME-type|none text/plain svdhC
MIME content-type that will be sent if the server cannot determine a type in any other way
DeflateBufferSize value 8096 svE
Fragment size to be compressed at one time by zlib
DeflateCompressionLevel valuesvE
How much compression do we apply to the output
DeflateFilterNote [type] notenamesvE
Places the compression ratio in a note for logging
DeflateMemLevel value 9 svE
How much memory should be used by zlib for compression
DeflateWindowSize value 15 svE
Zlib compression window size
Deny from all|host|env=[!]env-variable [host|env=[!]env-variable] ...dhB
Controls which hosts are denied access to the server
<Directory directory-path> ... </Directory>svC
Enclose a group of directives that apply only to the named file-system directory and sub-directories
DirectoryIndex local-url [local-url] ... index.html svdhB
List of resources to look for when the client requests a directory
<DirectoryMatch regex> ... </DirectoryMatch>svC
Enclose directives that apply to file-system directories matching a regular expression and their subdirectories
DirectorySlash On|Off On svdhB
Toggle trailing slash redirects on or off
DocumentRoot directory-path /usr/local/apache/h +svC
Directory that forms the main document tree visible from the web
DumpIOInput On|Off Off sE
Dump all input data to the error log
DumpIOLogLevel level debug sE
Controls the logging level of the DumpIO output
DumpIOOutput On|Off Off sE
Dump all output data to the error log
EnableExceptionHook On|Off Off sM
Enables a hook that runs exception handlers after a crash
EnableMMAP On|Off On svdhC
Use memory-mapping to read files during delivery
EnableSendfile On|Off On svdhC
Use the kernel sendfile support to deliver files to the client
ErrorDocument error-code documentsvdhC
What the server will return to the client in case of an error
ErrorLog file-path|syslog[:facility] logs/error_log (Uni +svC
Location where the server will log errors
ExamplesvdhX
Demonstration directive to illustrate the Apache module API
ExpiresActive On|OffsvdhE
Enables generation of Expires headers
ExpiresByType MIME-type <code>secondssvdhE
Value of the Expires header configured by MIME type
ExpiresDefault <code>secondssvdhE
Default algorithm for calculating expiration time
ExtendedStatus On|Off Off sB
Keep track of extended status information for each request
ExtFilterDefine filtername parameterssE
Define an external filter
ExtFilterOptions option [option] ... DebugLevel=0 NoLogS +dE
Configure mod_ext_filter options
FileETag component ... INode MTime Size svdhC
File attributes used to create the ETag HTTP response header
<Files filename> ... </Files>svdhC
Contains directives that apply to matched filenames
<FilesMatch regex> ... </FilesMatch>svdhC
Contains directives that apply to regular-expression matched filenames
FilterChain [+=-@!]filter-name ...svdhB
Configure the filter chain
FilterDeclare filter-name [type]svdhB
Declare a smart filter
FilterProtocol filter-name [provider-name] proto-flagssvdhB
Deal with correct HTTP protocol handling
FilterProvider filter-name provider-name [req|resp|env]=dispatch matchsvdhB
Register a content filter
FilterTrace filter-name levelsvdB
Get debug/diagnostic information from mod_filter
ForceLanguagePriority None|Prefer|Fallback [Prefer|Fallback] Prefer svdhB
Action to take if a single acceptable document is not found
ForceType MIME-type|NonedhC
Forces all matching files to be served with the specified MIME content-type
ForensicLog filename|pipesvE
Sets filename of the forensic log
GracefulShutDownTimeout secondssM
Specify a timeout after which a gracefully shutdown server will exit.
Group unix-group #-1 sM
Group under which the server will answer requests
Header [condition] set|append|merge|add|unset|echo|edit header [value] [early|env=[!]variable]svdhE
Configure HTTP response headers
HeaderName filenamesvdhB
Name of the file that will be inserted at the top of the index listing
HostnameLookups On|Off|Double Off svdC
Enables DNS lookups on client IP addresses
IdentityCheck On|Off Off svdE
Enables logging of the RFC 1413 identity of the remote user
IdentityCheckTimeout seconds 30 svdE
Determines the timeout duration for ident requests
<IfDefine [!]parameter-name> ... </IfDefine>svdhC
Encloses directives that will be processed only if a test is true at startup
<IfModule [!]module-file|module-identifier> ... </IfModule>svdhC
Encloses directives that are processed conditional on the presence or absence of a specific module
<IfVersion [[!]operator] version> ... </IfVersion>svdhE
contains version dependent configuration
ImapBase map|referer|URL http://servername/ svdhB
Default base for imagemap files
ImapDefault error|nocontent|map|referer|URL nocontent svdhB
Default action when an imagemap is called with coordinates that are not explicitly mapped
ImapMenu none|formatted|semiformatted|unformattedsvdhB
Action if no coordinates are given when calling an imagemap
Include file-path|directory-pathsvdC
Includes other configuration files from within the server configuration files
IndexIgnore file [file] ...svdhB
Adds to the list of files to hide when listing a directory
IndexOptions [+|-]option [[+|-]option] ...svdhB
Various configuration settings for directory indexing
IndexOrderDefault Ascending|Descending Name|Date|Size|Description Ascending Name svdhB
Sets the default ordering of the directory index
IndexStyleSheet url-pathsvdhB
Adds a CSS stylesheet to the directory index
ISAPIAppendLogToErrors on|off off svdhB
Record HSE_APPEND_LOG_PARAMETER requests from ISAPI extensions to the error log
ISAPIAppendLogToQuery on|off on svdhB
Record HSE_APPEND_LOG_PARAMETER requests from ISAPI extensions to the query field
ISAPICacheFile file-path [file-path] ...svB
ISAPI .dll files to be loaded at startup
ISAPIFakeAsync on|off off svdhB
Fake asynchronous support for ISAPI callbacks
ISAPILogNotSupported on|off off svdhB
Log unsupported feature requests from ISAPI extensions
ISAPIReadAheadBuffer size 49152 svdhB
Size of the Read Ahead Buffer sent to ISAPI extensions
KeepAlive On|Off On svC
Enables HTTP persistent connections
KeepAliveTimeout seconds 5 svC
Amount of time the server will wait for subsequent requests on a persistent connection
LanguagePriority MIME-lang [MIME-lang] ...svdhB
The precendence of language variants for cases where the client does not express a preference
LDAPCacheEntries number 1024 sE
Maximum number of entries in the primary LDAP cache
LDAPCacheTTL seconds 600 sE
Time that cached items remain valid
LDAPConnectionTimeout secondssE
Specifies the socket connection timeout in seconds
LDAPOpCacheEntries number 1024 sE
Number of entries used to cache LDAP compare operations
LDAPOpCacheTTL seconds 600 sE
Time that entries in the operation cache remain valid
LDAPSharedCacheFile directory-path/filenamesE
Sets the shared memory cache file
LDAPSharedCacheSize bytes 102400 sE
Size in bytes of the shared-memory cache
LDAPTrustedClientCert type directory-path/filename/nickname [password]svdhE
Sets the file containing or nickname referring to a per connection client certificate. Not all LDAP toolkits support per connection client certificates.
LDAPTrustedGlobalCert type directory-path/filename [password]sE
Sets the file or database containing global trusted Certificate Authority or global client certificates
LDAPTrustedMode typesvE
Specifies the SSL/TLS mode to be used when connecting to an LDAP server.
LDAPVerifyServerCert On|Off On sE
Force server certificate verification
<Limit method [method] ... > ... </Limit>svdhC
Restrict enclosed access controls to only certain HTTP methods
<LimitExcept method [method] ... > ... </LimitExcept>svdhC
Restrict access controls to all HTTP methods except the named ones
LimitInternalRecursion number [number] 10 svC
Determine maximum number of internal redirects and nested subrequests
LimitRequestBody bytes 0 svdhC
Restricts the total size of the HTTP request body sent from the client
LimitRequestFields number 100 sC
Limits the number of HTTP request header fields that will be accepted from the client
LimitRequestFieldSize bytes 8190 sC
Limits the size of the HTTP request header allowed from the client
LimitRequestLine bytes 8190 sC
Limit the size of the HTTP request line that will be accepted from the client
LimitXMLRequestBody bytes 1000000 svdhC
Limits the size of an XML-based request body
Listen [IP-address:]portnumber [protocol]sM
IP addresses and ports that the server listens to
ListenBacklog backlogsM
Maximum length of the queue of pending connections
LoadFile filename [filename] ...sE
Link in the named object file or library
LoadModule module filenamesE
Links in the object file or library, and adds to the list of active modules
<Location URL-path|URL> ... </Location>svC
Applies the enclosed directives only to matching URLs
<LocationMatch regex> ... </LocationMatch>svC
Applies the enclosed directives only to regular-expression matching URLs
LockFile filename logs/accept.lock sM
Location of the accept serialization lock file
LogFormat format|nickname [nickname] "%h %l %u %t \"%r\" +svB
Describes a format for use in a log file
LogLevel level warn svC
Controls the verbosity of the ErrorLog
MaxClients numbersM
Maximum number of simultaneous requests that will be served
MaxKeepAliveRequests number 100 svC
Number of requests allowed on a persistent connection
MaxMemFree KBytes 0 sM
Maximum amount of memory that the main allocator is allowed to hold without calling free()
MaxRequestsPerChild number 10000 sM
Limit on the number of requests that an individual child server will handle during its life
MaxRequestsPerThread number 0 sM
Limit on the number of requests that an individual thread will handle during its life
MaxSpareServers number 10 sM
Maximum number of idle child server processes
MaxSpareThreads numbersM
Maximum number of idle threads
MaxThreads number 2048 sM
Set the maximum number of worker threads
MCacheMaxObjectCount value 1009 sE
The maximum number of objects allowed to be placed in the cache
MCacheMaxObjectSize bytes 10000 sE
The maximum size (in bytes) of a document allowed in the cache
MCacheMaxStreamingBuffer size_in_bytes the smaller of 1000 +sE
Maximum amount of a streamed response to buffer in memory before declaring the response uncacheable
MCacheMinObjectSize bytes 1 sE
The minimum size (in bytes) of a document to be allowed in the cache
MCacheRemovalAlgorithm LRU|GDSF GDSF sE
The algorithm used to select documents for removal from the cache
MCacheSize KBytes 100 sE
The maximum amount of memory used by the cache in KBytes
MetaDir directory .web svdhE
Name of the directory to find CERN-style meta information files
MetaFiles on|off off svdhE
Activates CERN meta-file processing
MetaSuffix suffix .meta svdhE
File name suffix for the file containg CERN-style meta information
MimeMagicFile file-pathsvE
Enable MIME-type determination based on file contents using the specified magic file
MinSpareServers number 5 sM
Minimum number of idle child server processes
MinSpareThreads numbersM
Minimum number of idle threads available to handle request spikes
MMapFile file-path [file-path] ...sX
Map a list of files into memory at startup time
ModMimeUsePathInfo On|Off Off dB
Tells mod_mime to treat path_info components as part of the filename
MultiviewsMatch Any|NegotiatedOnly|Filters|Handlers [Handlers|Filters] NegotiatedOnly svdhB
The types of files that will be included when searching for a matching file with MultiViews
NameVirtualHost addr[:port]sC
Designates an IP address for name-virtual hosting
NoProxy host [host] ...svE
Hosts, domains, or networks that will be connected to directly
NWSSLTrustedCerts filename [filename] ...sB
List of additional client certificates
NWSSLUpgradeable [IP-address:]portnumbersB
Allows a connection to be upgraded to an SSL connection upon request
Options [+|-]option [[+|-]option] ... All svdhC
Configures what features are available in a particular directory
Order ordering Deny,Allow dhB
Controls the default access state and the order in which Allow and Deny are evaluated.
PassEnv env-variable [env-variable] ...svdhB
Passes environment variables from the shell
PidFile filename logs/httpd.pid sM
File where the server records the process ID of the daemon
ProtocolEcho On|Off Off svX
Turn the echo server on or off
<Proxy wildcard-url> ...</Proxy>svE
Container for directives applied to proxied resources
ProxyBadHeader IsError|Ignore|StartBody IsError svE
Determines how to handle bad header lines in a response
ProxyBlock *|word|host|domain [word|host|domain] ...svE
Words, hosts, or domains that are banned from being proxied
ProxyDomain DomainsvE
Default domain name for proxied requests
ProxyErrorOverride On|Off Off svE
Override error pages for proxied content
ProxyFtpDirCharset character set ISO-8859-1 svdE
Define the character set for proxied FTP listings
ProxyIOBufferSize bytes 8192 svE
Determine size of internal data throughput buffer
<ProxyMatch regex> ...</ProxyMatch>svE
Container for directives applied to regular-expression-matched proxied resources
ProxyMaxForwards number -1 svE
Maximium number of proxies that a request can be forwarded through
ProxyPass [path] !|url [key=value key=value ...]] [nocanon] [interpolate]svdE
Maps remote servers into the local server URL-space
ProxyPassInterpolateEnv On|Off Off svdE
Enable Environment Variable interpolation in Reverse Proxy configurations
ProxyPassMatch [regex] !|url [key=value [key=value ...]]svdE
Maps remote servers into the local server URL-space using regular expressions
ProxyPassReverse [path] url [interpolate]svdE
Adjusts the URL in HTTP response headers sent from a reverse proxied server
ProxyPassReverseCookieDomain internal-domain public-domain [interpolate]svdE
Adjusts the Domain string in Set-Cookie headers from a reverse- proxied server
ProxyPassReverseCookiePath internal-path public-path [interpolate]svdE
Adjusts the Path string in Set-Cookie headers from a reverse- proxied server
ProxyPreserveHost On|Off Off svE
Use incoming Host HTTP request header for proxy request
ProxyReceiveBufferSize bytes 0 svE
Network buffer size for proxied HTTP and FTP connections
ProxyRemote match remote-serversvE
Remote proxy used to handle certain requests
ProxyRemoteMatch regex remote-serversvE
Remote proxy used to handle requests matched by regular expressions
ProxyRequests On|Off Off svE
Enables forward (standard) proxy requests
ProxySet url key=value [key=value ...]dE
Set various Proxy balancer or member parameters
ProxyStatus Off|On|Full Off svE
Show Proxy LoadBalancer status in mod_status
ProxyTimeout secondssvE
Network timeout for proxied requests
ProxyVia On|Off|Full|Block Off svE
Information provided in the Via HTTP response header for proxied requests
ReadmeName filenamesvdhB
Name of the file that will be inserted at the end of the index listing
ReceiveBufferSize bytes 0 sM
TCP receive buffer size
Redirect [status] URL-path URLsvdhB
Sends an external redirect asking the client to fetch a different URL
RedirectMatch [status] regex URLsvdhB
Sends an external redirect based on a regular expression match of the current URL
RedirectPermanent URL-path URLsvdhB
Sends an external permanent redirect asking the client to fetch a different URL
RedirectTemp URL-path URLsvdhB
Sends an external temporary redirect asking the client to fetch a different URL
RemoveCharset extension [extension] ...vdhB
Removes any character set associations for a set of file extensions
RemoveEncoding extension [extension] ...vdhB
Removes any content encoding associations for a set of file extensions
RemoveHandler extension [extension] ...vdhB
Removes any handler associations for a set of file extensions
RemoveInputFilter extension [extension] ...vdhB
Removes any input filter associations for a set of file extensions
RemoveLanguage extension [extension] ...vdhB
Removes any language associations for a set of file extensions
RemoveOutputFilter extension [extension] ...vdhB
Removes any output filter associations for a set of file extensions
RemoveType extension [extension] ...vdhB
Removes any content type associations for a set of file extensions
RequestHeader set|append|merge|add|unset|edit header [value] [replacement] [early|env=[!]variable]svdhE
Configure HTTP request headers
Require entity-name [entity-name] ...dhC
Selects which authenticated users can access a resource
RewriteBase URL-pathdhE
Sets the base URL for per-directory rewrites
RewriteCond TestString CondPatternsvdhE
Defines a condition under which rewriting will take place
RewriteEngine on|off off svdhE
Enables or disables runtime rewriting engine
RewriteLock file-pathsE
Sets the name of the lock file used for RewriteMap synchronization
RewriteLog file-pathsvE
Sets the name of the file used for logging rewrite engine processing
RewriteLogLevel Level 0 svE
Sets the verbosity of the log file used by the rewrite engine
RewriteMap MapName MapType:MapSource svE
Defines a mapping function for key-lookup
RewriteOptions OptionssvdhE
Sets some special options for the rewrite engine
RewriteRule Pattern Substitution [flags]svdhE
Defines rules for the rewriting engine
RLimitCPU seconds|max [seconds|max]svdhC
Limits the CPU consumption of processes launched by Apache children
RLimitMEM bytes|max [bytes|max]svdhC
Limits the memory consumption of processes launched by Apache children
RLimitNPROC number|max [number|max]svdhC
Limits the number of processes that can be launched by processes launched by Apache children
Satisfy Any|All All dhC
Interaction between host-level access control and user authentication
ScoreBoardFile file-path logs/apache_status sM
Location of the file used to store coordination data for the child processes
Script method cgi-scriptsvdB
Activates a CGI script for a particular request method.
ScriptAlias URL-path file-path|directory-pathsvB
Maps a URL to a filesystem location and designates the target as a CGI script
ScriptAliasMatch regex file-path|directory-pathsvB
Maps a URL to a filesystem location using a regular expression and designates the target as a CGI script
ScriptInterpreterSource Registry|Registry-Strict|Script Script svdhC
Technique for locating the interpreter for CGI scripts
ScriptLog file-pathsvB
Location of the CGI script error logfile
ScriptLogBuffer bytes 1024 svB
Maximum amount of PUT or POST requests that will be recorded in the scriptlog
ScriptLogLength bytes 10385760 svB
Size limit of the CGI script logfile
ScriptSock file-path logs/cgisock sB
The filename prefix of the socket to use for communication with the cgi daemon
SecureListen [IP-address:]portnumber Certificate-Name [MUTUAL]sB
Enables SSL encryption for the specified port
SeeRequestTail On|Off Off sB
Determine if mod_status displays the first 63 characters of a request or the last 63, assuming the request itself is greater than 63 chars.
SendBufferSize bytes 0 sM
TCP buffer size
ServerAdmin email-address|URLsvC
Email address that the server includes in error messages sent to the client
ServerAlias hostname [hostname] ...vC
Alternate names for a host used when matching requests to name-virtual hosts
ServerLimit numbersM
Upper limit on configurable number of processes
ServerName [scheme://]fully-qualified-domain-name[:port]svC
Hostname and port that the server uses to identify itself
ServerPath URL-pathvC
Legacy URL pathname for a name-based virtual host that is accessed by an incompatible browser
ServerRoot directory-path /usr/local/apache sC
Base directory for the server installation
ServerSignature On|Off|EMail Off svdhC
Configures the footer on server-generated documents
ServerTokens Major|Minor|Min[imal]|Prod[uctOnly]|OS|Full Full sC
Configures the Server HTTP response header
SetEnv env-variable valuesvdhB
Sets environment variables
SetEnvIf attribute regex [!]env-variable[=value] [[!]env-variable[=value]] ...svdhB
Sets environment variables based on attributes of the request
SetEnvIfNoCase attribute regex [!]env-variable[=value] [[!]env-variable[=value]] ...svdhB
Sets environment variables based on attributes of the request without respect to case
SetHandler handler-name|NonesvdhC
Forces all matching files to be processed by a handler
SetInputFilter filter[;filter...]svdhC
Sets the filters that will process client requests and POST input
SetOutputFilter filter[;filter...]svdhC
Sets the filters that will process responses from the server
SSIEnableAccess on|off off dhB
Enable the -A flag during conditional flow control processing.
SSIEndTag tag "-->" svB
String that ends an include element
SSIErrorMsg message "[an error occurred +svdhB
Error message displayed when there is an SSI error
SSIStartTag tag "<!--#" svB
String that starts an include element
SSITimeFormat formatstring "%A, %d-%b-%Y %H:%M +svdhB
Configures the format in which date strings are displayed
SSIUndefinedEcho string "(none)" svdhB
String displayed when an unset variable is echoed
SSLCACertificateFile file-pathsvE
File of concatenated PEM-encoded CA Certificates for Client Auth
SSLCACertificatePath directory-pathsvE
Directory of PEM-encoded CA Certificates for Client Auth
SSLCADNRequestFile file-pathsvE
File of concatenated PEM-encoded CA Certificates for defining acceptable CA names
SSLCADNRequestPath directory-pathsvE
Directory of PEM-encoded CA Certificates for defining acceptable CA names
SSLCARevocationFile file-pathsvE
File of concatenated PEM-encoded CA CRLs for Client Auth
SSLCARevocationPath directory-pathsvE
Directory of PEM-encoded CA CRLs for Client Auth
SSLCertificateChainFile file-pathsvE
File of PEM-encoded Server CA Certificates
SSLCertificateFile file-pathsvE
Server PEM-encoded X.509 Certificate file
SSLCertificateKeyFile file-pathsvE
Server PEM-encoded Private Key file
SSLCipherSuite cipher-spec ALL:!ADH:RC4+RSA:+H +svdhE
Cipher Suite available for negotiation in SSL handshake
SSLCryptoDevice engine builtin sE
Enable use of a cryptographic hardware accelerator
SSLEngine on|off|optional off svE
SSL Engine Operation Switch
SSLHonorCiperOrder flagsvE
Option to prefer the server's cipher preference order
SSLMutex type none sE
Semaphore for internal mutual exclusion of operations
SSLOptions [+|-]option ...svdhE
Configure various SSL engine run-time options
SSLPassPhraseDialog type builtin sE
Type of pass phrase dialog for encrypted private keys
SSLProtocol [+|-]protocol ... all svE
Configure usable SSL protocol flavors
SSLProxyCACertificateFile file-pathsvE
File of concatenated PEM-encoded CA Certificates for Remote Server Auth
SSLProxyCACertificatePath directory-pathsvE
Directory of PEM-encoded CA Certificates for Remote Server Auth
SSLProxyCARevocationFile file-pathsvE
File of concatenated PEM-encoded CA CRLs for Remote Server Auth
SSLProxyCARevocationPath directory-pathsvE
Directory of PEM-encoded CA CRLs for Remote Server Auth
SSLProxyCipherSuite cipher-spec ALL:!ADH:RC4+RSA:+H +svdhE
Cipher Suite available for negotiation in SSL proxy handshake
SSLProxyEngine on|off off svE
SSL Proxy Engine Operation Switch
SSLProxyMachineCertificateFile filenamesE
File of concatenated PEM-encoded client certificates and keys to be used by the proxy
SSLProxyMachineCertificatePath directorysE
Directory of PEM-encoded client certificates and keys to be used by the proxy
SSLProxyProtocol [+|-]protocol ... all svE
Configure usable SSL protocol flavors for proxy usage
SSLProxyVerify level none svdhE
Type of remote server Certificate verification
SSLProxyVerifyDepth number 1 svdhE
Maximum depth of CA Certificates in Remote Server Certificate verification
SSLRandomSeed context source [bytes]sE
Pseudo Random Number Generator (PRNG) seeding source
SSLRequire expressiondhE
Allow access only when an arbitrarily complex boolean expression is true
SSLRequireSSLdhE
Deny access when SSL is not used for the HTTP request
SSLSessionCache type none sE
Type of the global/inter-process SSL Session Cache
SSLSessionCacheTimeout seconds 300 svE
Number of seconds before an SSL session expires in the Session Cache
SSLUserName varnamesdhE
Variable name to determine user name
SSLVerifyClient level none svdhE
Type of Client Certificate verification
SSLVerifyDepth number 1 svdhE
Maximum depth of CA Certificates in Client Certificate verification
StartServers numbersM
Number of child server processes created at startup
StartThreads numbersM
Number of threads created on startup
Substitute s/pattern/substitution/[infq]dhE
Pattern to filter the response content
SuexecUserGroup User GroupsvE
User and group for CGI programs to run as
ThreadLimit numbersM
Sets the upper limit on the configurable number of threads per child process
ThreadsPerChild numbersM
Number of threads created by each child process
ThreadStackSize sizesM
The size in bytes of the stack used by threads handling client connections
TimeOut seconds 300 svC
Amount of time the server will wait for certain events before failing a request
TraceEnable [on|off|extended] on sC
Determines the behaviour on TRACE requests
TransferLog file|pipesvB
Specify location of a log file
TypesConfig file-path conf/mime.types sB
The location of the mime.types file
UnsetEnv env-variable [env-variable] ...svdhB
Removes variables from the environment
UseCanonicalName On|Off|DNS Off svdC
Configures how the server determines its own name and port
UseCanonicalPhysicalPort On|Off Off svdC
Configures how the server determines its own name and port
User unix-userid #-1 sM
The userid under which the server will answer requests
UserDir directory-filename [directory-filename] ... svB
Location of the user-specific directories
VirtualDocumentRoot interpolated-directory|none none svE
Dynamically configure the location of the document root for a given virtual host
VirtualDocumentRootIP interpolated-directory|none none svE
Dynamically configure the location of the document root for a given virtual host
<VirtualHost addr[:port] [addr[:port]] ...> ... </VirtualHost>sC
Contains directives that apply only to a specific hostname or IP address
VirtualScriptAlias interpolated-directory|none none svE
Dynamically configure the location of the CGI directory for a given virtual host
VirtualScriptAliasIP interpolated-directory|none none svE
Dynamically configure the location of the cgi directory for a given virtual host
Win32DisableAcceptExsM
Use accept() rather than AcceptEx() to accept network connections
XBitHack on|off|full off svdhB
Parse SSI directives in files with the execute bit set



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