Linux all in one desk reference for dummies phần 9

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Linux all in one desk reference for dummies phần 9566 Configuring the Apache Web Server ✦ ErrorDocument errortype filename: Specifies a file that the server sends when an error of a specific type occurs. You can also provide a text message for an error. Here are some examples: ErrorDocument 403 “Sorry, no access to this directory” ErrorDocument 403 /error/noindex.html ErrorDocument 404 /cgi-bin/bad_link.pl ErrorDocument 401 /new_subscriber.html If you don’t have the ErrorDocument directive, the server sends a built- in error message. The errortype can be one of the following HTTP/1.1 error conditions (see RFC 2616 at www.ietf.org/rfc/rfc2616.txt or www.faqs.org/rfcs/rfc2616.html for more information): • 400: Bad Request • 401: Unauthorized • 402: Payment Required • 403: Forbidden • 404: Not Found • 405: Method Not Allowed • 406: Not Acceptable • 407: Proxy Authentication Required • 408: Request Timeout • 409: Conflict • 410: Gone • 411: Length Required • 412: Precondition Failed • 413: Request Entity Too Large • 414: Request-URI Too Long • 415: Unsupported Media Type • 416: Requested Range Not Satisfiable • 417: Expectation Failed • 500: Internal Server Error • 501: Not Implemented • 502: Bad Gateway • 503: Service Unavailable • 504: Gateway Timeout • 505: HTTP Version Not Supported TEAM LinG - Live, Informative, Non-cost and Genuine ! 567 Configuring the Apache Web Server ✦ TypesConfig filename: Specifies the file that contains the mapping of file extensions to MIME data types. (MIME stands for Multipurpose Internet Mail Extensions, a way to package attachments in a single mes- sage file.) The server reports these MIME types to clients. If you don’t specify a TypesConfig directive, httpd assumes that the TypesConfig file is /etc/mime.types. The following are a few selected lines from the default /etc/mime.types file: application/msword doc application/pdf pdf application/postscript ai eps ps application/x-tcl tcl audio/mpeg mpga mp2 mp3 audio/x-pn-realaudio ram rm audio/x-wav wav image/gif gif image/jpeg jpeg jpg jpe image/png png text/html html htm text/plain asc txt video/mpeg mpeg mpg mpe Each line shows the MIME type (such as text/html), followed by the file extensions for that type (html or htm). Book VIIAccess-control directives Chapter 2Access-control directives enable you to control who can access different direc-tories in the system. These are the global access-configuration directives. You Running a Webcan also have another access-configuration file that uses a name specified by Serverthe AccessFileName directive in every directory from which the Apache Webserver can serve documents. (That per-directory access-configuration file isnamed .htaccess by default.)Stripped of most of its comment lines, the access-control directive has thisformat:# First, we configure the “default” to be a# very restrictive set of permissions. Options FollowSymLinks AllowOverride None# The following directory name should# match DocumentRoot in httpd.conf Options Indexes FollowSymLinks AllowOverride None order allow,deny allow from all TEAM LinG - Live, Informative, Non-cost and Genuine !568 Configuring the Apache Web Server # The directory name should match the # location of the cgi-bin directory AllowOverride None Options None Order allow,deny Allow from all Access-control directives use a different syntax from the other Apache direc- tives. The syntax is like ...