Directive Quick Reference - Apache HTTP Server
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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
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-scriptsvdhB
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 character set to be added for a response without an explicit character set
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_Authoritative On|Off Off dhE
Configures if authorization will fall-through to other methods
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
AssignUserID user-id group-idvM
Tie a virtual host to a user and group ID
AuthAuthoritative On|Off On dhB
Sets whether authorization and authentication are passed to lower level modules
AuthDBMAuthoritative On|Off On dhE
Sets whether authentication and authorization will be passwed on to lower level modules
AuthDBMGroupFile file-pathdhE
Sets the name of the database file containing the list of user groups for authentication
AuthDBMType default|SDBM|GDBM|NDBM|DB default dhE
Sets the type of database file that is used to store passwords
AuthDBMUserFile file-pathdhE
Sets thename of a database file containing the list of users and passwords for authentication
AuthDigestAlgorithm MD5|MD5-sess MD5 dhX
Selects the algorithm used to calculate the challenge and response hases in digest authentication
AuthDigestDomain URI [URI] ...dhX
URIs that are in the same protection space for digest authentication
AuthDigestFile file-pathdhX
Location of the text file containing the list of users and encoded passwords for digest authentication
AuthDigestGroupFile file-pathdhX
Name of the text file containing the list of groups for digest authentication
AuthDigestNcCheck On|Off Off sX
Enables or disables checking of the nonce-count sent by the server
AuthDigestNonceFormat formatdhX
Determines how the nonce is generated
AuthDigestNonceLifetime seconds 300 dhX
How long the server nonce is valid
AuthDigestQop none|auth|auth-int [auth|auth-int] auth dhX
Determines the quality-of-protection to use in digest authentication
AuthDigestShmemSize size 1000 sX
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 authentication
AuthLDAPAuthoritative on|off on dhX
Prevent other authentication modules from authenticating the user if this one fails
AuthLDAPBindDN distinguished-namedhX
Optional DN to use in binding to the LDAP server
AuthLDAPBindPassword passworddhX
Password used in conjuction with the bind DN
AuthLDAPCharsetConfig file-pathsX
Language to charset conversion configuration file
AuthLDAPCompareDNOnServer on|off on dhX
Use the LDAP server to compare the DNs
AuthLDAPDereferenceAliases never|searching|finding|always Always dhX
When will the module de-reference aliases
AuthLDAPEnabled on|off on dhX
Turn on or off LDAP authentication
AuthLDAPFrontPageHack on|off off dhX
Allow LDAP authentication to work with MS FrontPage
AuthLDAPGroupAttribute attributedhX
LDAP attributes used to check for group membership
AuthLDAPGroupAttributeIsDN on|off on dhX
Use the DN of the client username when checking for group membership
AuthLDAPRemoteUserIsDN on|off off dhX
Use the DN of the client username to set the REMOTE_USER environment variable
AuthLDAPUrl urldhX
URL specifying the LDAP search parameters
AuthName auth-domaindhC
Authorization realm for use in HTTP authentication
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
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
BS2000Account accountsM
Define the non-privileged account on BS2000 machines
CacheDefaultExpire seconds 3600 (one hour) svX
The default duration to cache a document when no expiry date is specified.
CacheDirLength length 2 svX
The number of characters in subdirectory names
CacheDirLevels levels 3 svX
The number of levels of subdirectories in the cache.
CacheDisable url-stringsvX
Disable caching of specified URLs
CacheEnable cache_type url-stringsvX
Enable caching of specified URLs using a specified storage manager
CacheExpiryCheck On|Off On svX
Indicates if the cache observes Expires dates when seeking files
CacheFile file-path [file-path] ...sX
Cache a list of file handles at startup time
CacheForceCompletion Percentage 60 svX
Percentage of document served, after which the server will complete caching the file even if the request is cancelled.
CacheGcClean hours url-string ? svX
The time to retain unchanged cached files that match a URL
CacheGcDaily time ? svX
The recurring time each day for garbage collection to be run. (24 hour clock)
CacheGcInterval hourssvX
The interval between garbage collection attempts.
CacheGcMemUsage KBytes ? svX
The maximum kilobytes of memory used for garbage collection
CacheGcUnused hours url-string ? svX
The time to retain unreferenced cached files that match a URL.
CacheIgnoreCacheControl On|Off Off svX
Ignore the fact that the client requested the content not be cached.
CacheIgnoreNoLastMod On|Off Off svX
Ignore the fact that a response has no Last Modified header.
CacheLastModifiedFactor float 0.1 svX
The factor used to compute an expiry date based on the LastModified date.
CacheMaxExpire seconds 86400 (one day) svX
The maximum time in seconds to cache a document
CacheMaxFileSize bytes 1000000 svX
The maximum size (in bytes) of a document to be placed in the cache
CacheMinFileSize bytes 1 svX
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 directorysvX
The directory root under which cache files are stored
CacheSize KBytes 1000000 svX
The maximum amount of disk space that will be used by the cache in KBytes
CacheTimeMargin ? ? svX
The minimum time margin to cache a document
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
CheckSpelling on|off Off svdhE
Enables the spelling module
ChildPerUserID user-id group-id num-childrensM
Specify user ID and group ID for a number of child processes
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
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
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 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
DocumentRoot directory-path /usr/local/apache/h +svC
Directory that forms the main document tree visible from the web
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
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
Group unix-group #-1 sM
Group under which the server will answer requests
Header set|append|add|unset|echo header [value [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 svdC
Enables logging of the RFC1413 identity of the remote user
<IfDefine [!]parameter-name> ... </IfDefine>svdhC
Encloses directives that will be processed only if a test is true at startup
<IfModule [!]module-name> ... </IfModule>svdhC
Encloses directives that are processed conditional on the presence or absence of a specific module
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
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 15 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 sX
Maximum number of entries in the primary LDAP cache
LDAPCacheTTL seconds 600 sX
Time that cached items remain valid
LDAPOpCacheEntries number 1024 sX
Number of entries used to cache LDAP compare operations
LDAPOpCacheTTL seconds 600 sX
Time that entries in the operation cache remain valid
LDAPSharedCacheFile directory-path/filenamesX
Sets the shared memory chache file
LDAPSharedCacheSize bytes 102400 sX
Size in bytes of the shared-memory cache
LDAPTrustedCA directory-path/filenamesX
Sets the file containing the trusted Certificate Authority certificate or database
LDAPTrustedCAType typesX
Specifies the type of the Certificate Authority file
<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 bytessC
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:]portnumbersM
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 child processes that will be created to serve requests
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
MaxThreadsPerChild number 64 sM
Maximum number of threads per child process
MCacheMaxObjectCount value 1009 sX
The maximum number of objects allowed to be placed in the cache
MCacheMaxObjectSize bytes 10000 sX
The maximum size (in bytes) of a document allowed in the cache
MCacheMaxStreamingBuffer size_in_bytes the smaller of 1000 +sX
Maximum amount of a streamed response to buffer in memory before declaring the response uncacheable
MCacheMinObjectSize bytes 0 sX
The minimum size (in bytes) of a document to be allowed in the cache
MCacheRemovalAlgorithm LRU|GDSF GDSF sX
The algorithm used to select documents for removal from the cache
MCacheSize KBytes 100 sX
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
NumServers number 2 sM
Total number of children alive at the same time
NWSSLTrustedCerts filename [filename] ...sB
List of additional client certificates
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|OffsvX
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
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 10 svE
Maximium number of proxies that a request can be forwarded through
ProxyPass [path] !|urlsvdE
Maps remote servers into the local server URL-space
ProxyPassReverse [path] urlsvdE
Adjusts the URL in HTTP response headers sent 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
ProxyTimeout seconds 300 svE
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
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|add|unset header [value]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 Options MaxRedirects=10 svdhE
Sets some special options for the rewrite engine
RewriteRule Pattern SubstitutionsvdhE
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 svB
The name 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
SendBufferSize bytes 0 sM
TCP buffer size
ServerAdmin email-addresssvC
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 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
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)" svB
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
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
SSLEngine on|off off svE
SSL Engine Operation Switch
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
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
SuexecUserGroup User GroupsvE
User and group permissions for CGI programs
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 number 65536 sM
Determine the stack size for each thread
TimeOut seconds 300 sC
Amount of time the server will wait for certain events before failing a request
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 On 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 public_html 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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