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dreamwest

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Posts posted by dreamwest

  1. htaccess rules

     

    Regex Character Definitions for htaccess2 [ ^ ]
    #
    the # instructs the server to ignore the line. used for including comments. each line of comments requires it’s own #. when including comments, it is good practice to use only letters, numbers, dashes, and underscores. this practice will help eliminate/avoid potential server parsing errors.
    [F]
    Forbidden: instructs the server to return a 403 Forbidden to the client.
    [L]
    Last rule: instructs the server to stop rewriting after the preceding directive is processed.
    [N]
    Next: instructs Apache to rerun the rewrite rule until all rewriting directives have been achieved.
    [G]
    Gone: instructs the server to deliver Gone (no longer exists) status message.
    [P]
    Proxy: instructs server to handle requests by mod_proxy
    [C]
    Chain: instructs server to chain the current rule with the previous rule.
    [R]
    Redirect: instructs Apache to issue a redirect, causing the browser to request the rewritten/modified URL.
    [NC]
    No Case: defines any associated argument as case-insensitive. i.e., "NC" = "No Case".
    [PT]
    Pass Through: instructs mod_rewrite to pass the rewritten URL back to Apache for further processing.
    [OR]
    Or: specifies a logical "or" that ties two expressions together such that either one proving true will cause the associated rule to be applied.
    [NE]
    No Escape: instructs the server to parse output without escaping characters.
    [NS]
    No Subrequest: instructs the server to skip the directive if internal sub-request.
    [QSA]
    Append Query String: directs server to add the query string to the end of the expression (URL).
    [s=x]
    Skip: instructs the server to skip the next "x" number of rules if a match is detected.
    [E=variable:value]
    Environmental Variable: instructs the server to set the environmental variable "variable" to "value".
    [T=MIME-type]
    Mime Type: declares the mime type of the target resource.
    []
    specifies a character class, in which any character within the brackets will be a match. e.g., [xyz] will match either an x, y, or z.
    []+
    character class in which any combination of items within the brackets will be a match. e.g., [xyz]+ will match any number of x’s, y’s, z’s, or any combination of these characters.
    [^]
    specifies not within a character class. e.g., [^xyz] will match any character that is neither x, y, nor z.
    [a-z]
    a dash (-) between two characters within a character class ([]) denotes the range of characters between them. e.g., [a-zA-Z] matches all lowercase and uppercase letters from a to z.
    a{n}
    specifies an exact number, n, of the preceding character. e.g., x{3} matches exactly three x’s.
    a{n,}
    specifies n or more of the preceding character. e.g., x{3,} matches three or more x’s.
    a{n,m}
    specifies a range of numbers, between n and m, of the preceding character. e.g., x{3,7} matches three, four, five, six, or seven x’s.
    ()
    used to group characters together, thereby considering them as a single unit. e.g., (perishable)?press will match press, with or without the perishable prefix.
    ^
    denotes the beginning of a regex (regex = regular expression) test string. i.e., begin argument with the proceeding character.
    $
    denotes the end of a regex (regex = regular expression) test string. i.e., end argument with the previous character.
    ?
    declares as optional the preceding character. e.g., monzas? will match monza or monzas, while mon(za)? will match either mon or monza. i.e., x? matches zero or one of x.
    !
    declares negation. e.g., “!string” matches everything except “string”.
    .
    a dot (or period) indicates any single arbitrary character.
    -
    instructs “not to” rewrite the URL, as in “...domain.com.* - [F]”.
    +
    matches one or more of the preceding character. e.g., G+ matches one or more G’s, while "+" will match one or more characters of any kind.
    *
    matches zero or more of the preceding character. e.g., use “.*” as a wildcard.
    |
    declares a logical “or” operator. for example, (x|y) matches x or y.
    \
    escapes special characters ( ^ $ ! . * | ). e.g., use “\.” to indicate/escape a literal dot.
    \.
    indicates a literal dot (escaped).
    /*
    zero or more slashes.
    .*
    zero or more arbitrary characters.
    ^$
    defines an empty string.
    ^.*$
    the standard pattern for matching everything.
    [^/.]
    defines one character that is neither a slash nor a dot.
    [^/.]+
    defines any number of characters which contains neither slash nor dot.
    http://
    this is a literal statement — in this case, the literal character string, “http://”.
    ^domain.*
    defines a string that begins with the term “domain”, which then may be proceeded by any number of any characters.
    ^domain\.com$
    defines the exact string “domain.com”.
    -d
    tests if string is an existing directory
    -f
    tests if string is an existing file
    -s
    tests if file in test string has a non-zero value
    

  2. My favorite Crazy tricks:

     

    Here we are disabling the digital signature that would otherwise identify the server:
    # disable the server signature
    ServerSignature Off
    
    To increase performance on PHP enabled servers, add the following directive:
    # preserve bandwidth for PHP enabled servers
    <ifmodule mod_php4.c>
    php_value zlib.output_compression 16386
    </ifmodule>
    
    
    # file caching- my favorite!
    ExpiresActive On
    ExpiresDefault A604800 # 1 week
    ExpiresByType image/x-icon A2419200 # 1 month
    ExpiresByType application/x-javascript A2419200 # 1 month
    ExpiresByType text/css A2419200 # 1 month
    ExpiresByType text/html A300 # 5 minutes
    # disable caching for scripts and other dynamic files
    <FilesMatch "\.(pl|php|cgi|spl|scgi|fcgi)$">
    ExpiresActive Off
    </FilesMatch>
    
    # disable directory browsing - no more index.php in every friggin directory
    Options All -Indexes
    
    This bit of voodoo will auto-correct simple spelling errors in the URL:
    # automatically corect simple speling erors
    <IfModule mod_speling.c>
    CheckSpelling On
    </IfModule>
    
    # instruct browser to download multimedia files
    AddType application/octet-stream .avi
    AddType application/octet-stream .mpg
    AddType application/octet-stream .wmv
    AddType application/octet-stream .mp3
    
    

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