# Apache Server Configs v2.0.0 | MIT License # https://github.com/h5bp/server-configs-apache # (!) Using `.htaccess` files slows down Apache, therefore, if you have access # to the main server config file (usually called `httpd.conf`), you should add # this logic there: http://httpd.apache.org/docs/current/howto/htaccess.html. # ############################################################################## # # CROSS-ORIGIN RESOURCE SHARING (CORS) # # ############################################################################## # ------------------------------------------------------------------------------ # | Cross-domain AJAX requests | # ------------------------------------------------------------------------------ # Enable cross-origin AJAX requests. # http://code.google.com/p/html5security/wiki/CrossOriginRequestSecurity # http://enable-cors.org/ # # Header set Access-Control-Allow-Origin "*" # # ------------------------------------------------------------------------------ # | CORS-enabled images | # ------------------------------------------------------------------------------ # Send the CORS header for images when browsers request it. # https://developer.mozilla.org/en/CORS_Enabled_Image # http://blog.chromium.org/2011/07/using-cross-domain-images-in-webgl-and.html # http://hacks.mozilla.org/2011/11/using-cors-to-load-webgl-textures-from-cross-domain-images/ SetEnvIf Origin ":" IS_CORS Header set Access-Control-Allow-Origin "*" env=IS_CORS # ------------------------------------------------------------------------------ # | Web fonts access | # ------------------------------------------------------------------------------ # Allow access from all domains for web fonts Header set Access-Control-Allow-Origin "*" # ############################################################################## # # ERRORS # # ############################################################################## # ------------------------------------------------------------------------------ # | 404 error prevention for non-existing redirected folders | # ------------------------------------------------------------------------------ # Prevent Apache from returning a 404 error for a rewrite if a directory # with the same name does not exist. # http://httpd.apache.org/docs/current/content-negotiation.html#multiviews # http://www.webmasterworld.com/apache/3808792.htm Options -MultiViews # ------------------------------------------------------------------------------ # | Custom error messages / pages | # ------------------------------------------------------------------------------ # You can customize what Apache returns to the client in case of an error (see # http://httpd.apache.org/docs/current/mod/core.html#errordocument), e.g.: ErrorDocument 404 /404.html # ############################################################################## # # INTERNET EXPLORER # # ############################################################################## # ------------------------------------------------------------------------------ # | Better website experience | # ------------------------------------------------------------------------------ # Force IE to render pages in the highest available mode in the various # cases when it may not: http://hsivonen.iki.fi/doctype/ie-mode.pdf. Header set X-UA-Compatible "IE=edge" # `mod_headers` can't match based on the content-type, however, we only # want to send this header for HTML pages and not for the other resources Header unset X-UA-Compatible # ------------------------------------------------------------------------------ # | Cookie setting from iframes | # ------------------------------------------------------------------------------ # Allow cookies to be set from iframes in IE. # http://msdn.microsoft.com/en-us/library/ms537343.aspx # http://www.w3.org/TR/2000/CR-P3P-20001215/ # # Header set P3P "policyref=\"/w3c/p3p.xml\", CP=\"IDC DSP COR ADM DEVi TAIi PSA PSD IVAi IVDi CONi HIS OUR IND CNT\"" # # ############################################################################## # # MIME TYPES AND ENCODING # # ############################################################################## # ------------------------------------------------------------------------------ # | Proper MIME types for all files | # ------------------------------------------------------------------------------ # Audio AddType audio/mp4 m4a f4a f4b AddType audio/ogg oga ogg # JavaScript # Normalize to standard type (it's sniffed in IE anyways): # http://tools.ietf.org/html/rfc4329#section-7.2 AddType application/javascript js AddType application/json json # Video AddType video/mp4 f4v f4p m4v mp4 AddType video/ogg ogv AddType video/webm webm AddType video/x-flv flv # Web fonts AddType application/font-woff woff AddType application/vnd.ms-fontobject eot # Browsers usually ignore the font MIME types and sniff the content, # however, Chrome shows a warning if other MIME types are used for the # following fonts. AddType application/x-font-ttf ttc ttf AddType font/opentype otf # Make SVGZ fonts work on iPad: # https://twitter.com/FontSquirrel/status/14855840545 AddType image/svg+xml svgz AddEncoding gzip svgz # Other AddType application/octet-stream safariextz AddType application/x-chrome-extension crx AddType application/x-opera-extension oex AddType application/x-web-app-manifest+json webapp AddType application/x-xpinstall xpi AddType application/xml atom rdf rss xml AddType image/webp webp AddType image/x-icon cur AddType text/cache-manifest appcache manifest AddType text/vtt vtt AddType text/x-component htc AddType text/x-vcard vcf # ------------------------------------------------------------------------------ # | UTF-8 encoding | # ------------------------------------------------------------------------------ # Use UTF-8 encoding for anything served as `text/html` or `text/plain`. AddDefaultCharset utf-8 # Force UTF-8 for certain file formats. AddCharset utf-8 .atom .css .js .json .rss .vtt .webapp .xml # ############################################################################## # # URL REWRITES # # ############################################################################## # ------------------------------------------------------------------------------ # | Rewrite engine | # ------------------------------------------------------------------------------ # Turning on the rewrite engine and enabling the `FollowSymLinks` option is # necessary for the following directives to work. # If your web host doesn't allow the `FollowSymlinks` option, you may need to # comment it out and use `Options +SymLinksIfOwnerMatch` but, be aware of the # performance impact: http://httpd.apache.org/docs/current/misc/perf-tuning.html#symlinks # Also, some cloud hosting services require `RewriteBase` to be set: # http://www.rackspace.com/knowledge_center/frequently-asked-question/why-is-mod-rewrite-not-working-on-my-site Options +FollowSymlinks # Options +SymLinksIfOwnerMatch RewriteEngine On # RewriteBase / # Redirect "democlient.html" to the new place... Redirect permanent /democlient.html http://cppcheck.sourceforge.net/demo/ # Redirect "devinfo.html" to the new place... Redirect permanent /devinfo.html http://cppcheck.sourceforge.net/devinfo/ # Redirect doxyoutput, coverage- and cpd report to the new place... Redirect permanent /doxyoutput/ http://cppcheck.sourceforge.net/devinfo/doxyoutput/ Redirect permanent /doxygen-errors.txt http://cppcheck.sourceforge.net/devinfo/doxygen-errors.txt Redirect permanent /coverage_report/ http://cppcheck.sourceforge.net/devinfo/coverage_report/ Redirect permanent /cpd.txt http://cppcheck.sourceforge.net/devinfo/cpd.txt # ------------------------------------------------------------------------------ # | Suppressing / Forcing the "www." at the beginning of URLs | # ------------------------------------------------------------------------------ # The same content should never be available under two different URLs especially # not with and without "www." at the beginning. This can cause SEO problems # (duplicate content), therefore, you should choose one of the alternatives and # redirect the other one. # By default option 1 (no "www.") is activated: # http://no-www.org/faq.php?q=class_b # If you'd prefer to use option 2, just comment out all the lines from option 1 # and uncomment the ones from option 2. # IMPORTANT: NEVER USE BOTH RULES AT THE SAME TIME! # - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - # Option 1: rewrite www.example.com → example.com RewriteCond %{HTTPS} !=on RewriteCond %{HTTP_HOST} ^www\.(.+)$ [NC] RewriteRule ^ http://%1%{REQUEST_URI} [R=301,L] # - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - # Option 2: rewrite example.com → www.example.com # Be aware that the following might not be a good idea if you use "real" # subdomains for certain parts of your website. # # RewriteCond %{HTTPS} !=on # RewriteCond %{HTTP_HOST} !^www\..+$ [NC] # RewriteCond %{HTTP_HOST} !=localhost [NC] # RewriteCond %{HTTP_HOST} !=127.0.0.1 # RewriteRule ^ http://www.%{HTTP_HOST}%{REQUEST_URI} [R=301,L] # # ############################################################################## # # SECURITY # # ############################################################################## # ------------------------------------------------------------------------------ # | Clickjacking | # ------------------------------------------------------------------------------ # Protect web site against clickjacking. # The example below sends the `X-Frame-Options` response header with the value # `DENY`, informing browsers not to display the web page content in any frame. # This might not be the best setting for everyone. You should read about the # other two possible values for `X-Frame-Options`: `SAMEORIGIN` and `ALLOW-FROM` # http://tools.ietf.org/html/rfc7034#section-2.1. # Keep in mind that while you could send the `X-Frame-Options` header for all # of your site’s pages, this has the potential downside that it forbids even # non-malicious framing of your content (e.g.: when users visit your site using # a Google Image Search results page). # Nonetheless, you should ensure that you send the `X-Frame-Options` header for # all pages that allow a user to make a state changing operation (e.g: pages # that contain one-click purchase links, checkout or bank-transfer confirmation # pages, pages that make permanent configuration changes, etc.). # Sending the `X-Frame-Options` header can also protect your web site against # more than just clickjacking attacks: https://cure53.de/xfo-clickjacking.pdf. # http://tools.ietf.org/html/rfc7034 # http://blogs.msdn.com/b/ieinternals/archive/2010/03/30/combating-clickjacking-with-x-frame-options.aspx # https://www.owasp.org/index.php/Clickjacking # # Header set X-Frame-Options "SAMEORIGIN" # # Header unset X-Frame-Options # # # ------------------------------------------------------------------------------ # | Content Security Policy (CSP) | # ------------------------------------------------------------------------------ # You can mitigate the risk of cross-site scripting and other content-injection # attacks by setting a Content Security Policy which whitelists trusted sources # of content for your site. # The example header below allows ONLY scripts that are loaded from the current # site's origin (no inline scripts, no CDN, etc). This almost certainly won't # work as-is for your site! # For more details on how to craft a reasonable policy for your site, read: # http://html5rocks.com/en/tutorials/security/content-security-policy (or the # specification: http://w3.org/TR/CSP). Also, to make things easier, you can # use an online CSP header generator such as: http://cspisawesome.com/. # # Header set Content-Security-Policy "script-src 'self'; object-src 'self'" # # Header unset Content-Security-Policy # # # ------------------------------------------------------------------------------ # | File access | # ------------------------------------------------------------------------------ # Block access to directories without a default document. # Usually you should leave this uncommented because you shouldn't allow anyone # to surf through every directory on your server (which may includes rather # private places like the CMS's directories). Options -Indexes # - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - # Block access to hidden files and directories. # This includes directories used by version control systems such as Git and SVN. RewriteCond %{SCRIPT_FILENAME} -d [OR] RewriteCond %{SCRIPT_FILENAME} -f RewriteRule "(^|/)\." - [F] # - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - # Block access to backup and source files. # These files may be left by some text editors and can pose a great security # danger when anyone has access to them. # Apache < 2.3 Order allow,deny Deny from all Satisfy All # Apache ≥ 2.3 Require all denied # ------------------------------------------------------------------------------ # | Reducing MIME-type security risks | # ------------------------------------------------------------------------------ # Prevent some browsers from MIME-sniffing the response. # This reduces exposure to drive-by download attacks and should be enable # especially if the web server is serving user uploaded content, content # that could potentially be treated by the browser as executable. # http://blogs.msdn.com/b/ie/archive/2008/07/02/ie8-security-part-v-comprehensive-protection.aspx # http://msdn.microsoft.com/en-us/library/ie/gg622941.aspx # http://mimesniff.spec.whatwg.org/ # # Header set X-Content-Type-Options "nosniff" # # ------------------------------------------------------------------------------ # | Reflected Cross-Site Scripting (XSS) attacks | # ------------------------------------------------------------------------------ # (1) Try to re-enable the Cross-Site Scripting (XSS) filter built into the # most recent web browsers. # # The filter is usually enabled by default, but in some cases it may be # disabled by the user. However, in IE for example, it can be re-enabled # just by sending the `X-XSS-Protection` header with the value of `1`. # # (2) Prevent web browsers from rendering the web page if a potential reflected # (a.k.a non-persistent) XSS attack is detected by the filter. # # By default, if the filter is enabled and browsers detect a reflected # XSS attack, they will attempt to block the attack by making the smallest # possible modifications to the returned web page. # # Unfortunately, in some browsers (e.g.: IE), this default behavior may # allow the XSS filter to be exploited, thereby, it's better to tell # browsers to prevent the rendering of the page altogether, instead of # attempting to modify it. # # http://hackademix.net/2009/11/21/ies-xss-filter-creates-xss-vulnerabilities # # IMPORTANT: Do not rely on the XSS filter to prevent XSS attacks! Ensure that # you are taking all possible measures to prevent XSS attacks, the most obvious # being: validating and sanitizing your site's inputs. # http://blogs.msdn.com/b/ie/archive/2008/07/02/ie8-security-part-iv-the-xss-filter.aspx # http://blogs.msdn.com/b/ieinternals/archive/2011/01/31/controlling-the-internet-explorer-xss-filter-with-the-x-xss-protection-http-header.aspx # https://www.owasp.org/index.php/Cross-site_Scripting_%28XSS%29 # # # (1) (2) # Header set X-XSS-Protection "1; mode=block" # # Header unset X-XSS-Protection # # # ------------------------------------------------------------------------------ # | Secure Sockets Layer (SSL) | # ------------------------------------------------------------------------------ # Rewrite secure requests properly to prevent SSL certificate warnings, e.g.: # prevent `https://www.example.com` when your certificate only allows # `https://secure.example.com`. # # RewriteCond %{SERVER_PORT} !^443 # RewriteRule ^ https://example-domain-please-change-me.com%{REQUEST_URI} [R=301,L] # # ------------------------------------------------------------------------------ # | HTTP Strict Transport Security (HSTS) | # ------------------------------------------------------------------------------ # Force client-side SSL redirection. # If a user types "example.com" in his browser, the above rule will redirect # him to the secure version of the site. That still leaves a window of oppor- # tunity (the initial HTTP connection) for an attacker to downgrade or redirect # the request. The following header ensures that browser will ONLY connect to # your server via HTTPS, regardless of what the users type in the address bar. # http://tools.ietf.org/html/draft-ietf-websec-strict-transport-sec-14#section-6.1 # http://www.html5rocks.com/en/tutorials/security/transport-layer-security/ # (!) Remove the `includeSubDomains` optional directive if the subdomains are # not using HTTPS. # # Header set Strict-Transport-Security "max-age=16070400; includeSubDomains" # # ------------------------------------------------------------------------------ # | Server software information | # ------------------------------------------------------------------------------ # Avoid displaying the exact Apache version number, the description of the # generic OS-type and the information about Apache's compiled-in modules. # ADD THIS DIRECTIVE IN THE `httpd.conf` AS IT WILL NOT WORK IN THE `.htaccess`! # ServerTokens Prod # ############################################################################## # # WEB PERFORMANCE # # ############################################################################## # ------------------------------------------------------------------------------ # | Compression | # ------------------------------------------------------------------------------ # Force compression for mangled headers. # http://developer.yahoo.com/blogs/ydn/posts/2010/12/pushing-beyond-gzipping SetEnvIfNoCase ^(Accept-EncodXng|X-cept-Encoding|X{15}|~{15}|-{15})$ ^((gzip|deflate)\s*,?\s*)+|[X~-]{4,13}$ HAVE_Accept-Encoding RequestHeader append Accept-Encoding "gzip,deflate" env=HAVE_Accept-Encoding # Compress all output labeled with one of the following MIME-types # (for Apache versions below 2.3.7, you don't need to enable `mod_filter` # and can remove the `` and `` lines # as `AddOutputFilterByType` is still in the core directives). # AddOutputFilterByType DEFLATE application/atom+xml \ application/javascript \ application/json \ application/rss+xml \ application/vnd.ms-fontobject \ application/x-font-ttf \ application/x-web-app-manifest+json \ application/xhtml+xml \ application/xml \ font/opentype \ image/svg+xml \ image/x-icon \ text/css \ text/html \ text/plain \ text/x-component \ text/xml # # ------------------------------------------------------------------------------ # | Content transformations | # ------------------------------------------------------------------------------ # Prevent some of the mobile network providers from modifying the content of # your site: http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html#sec14.9.5. # # Header set Cache-Control "no-transform" # # ------------------------------------------------------------------------------ # | ETag removal | # ------------------------------------------------------------------------------ # Since we're sending far-future expires headers (see below), ETags can # be removed: http://developer.yahoo.com/performance/rules.html#etags. # `FileETag None` is not enough for every server. Header unset ETag FileETag None # ------------------------------------------------------------------------------ # | Expires headers (for better cache control) | # ------------------------------------------------------------------------------ # The following expires headers are set pretty far in the future. If you don't # control versioning with filename-based cache busting, consider lowering the # cache time for resources like CSS and JS to something like 1 week. ExpiresActive on ExpiresDefault "access plus 1 month" # CSS ExpiresByType text/css "access plus 1 week" # Data interchange ExpiresByType application/json "access plus 0 seconds" ExpiresByType application/xml "access plus 0 seconds" ExpiresByType text/xml "access plus 0 seconds" # Favicon (cannot be renamed!) and cursor images ExpiresByType image/x-icon "access plus 1 week" # HTML components (HTCs) ExpiresByType text/x-component "access plus 1 month" # HTML ExpiresByType text/html "access plus 0 seconds" # JavaScript ExpiresByType application/javascript "access plus 1 week" # Manifest files ExpiresByType application/x-web-app-manifest+json "access plus 0 seconds" ExpiresByType text/cache-manifest "access plus 0 seconds" # Media ExpiresByType audio/ogg "access plus 1 month" ExpiresByType image/gif "access plus 1 month" ExpiresByType image/jpeg "access plus 1 month" ExpiresByType image/png "access plus 1 month" ExpiresByType video/mp4 "access plus 1 month" ExpiresByType video/ogg "access plus 1 month" ExpiresByType video/webm "access plus 1 month" # Web feeds ExpiresByType application/atom+xml "access plus 1 hour" ExpiresByType application/rss+xml "access plus 1 hour" # Web fonts ExpiresByType application/font-woff "access plus 1 month" ExpiresByType application/vnd.ms-fontobject "access plus 1 month" ExpiresByType application/x-font-ttf "access plus 1 month" ExpiresByType font/opentype "access plus 1 month" ExpiresByType image/svg+xml "access plus 1 month" # ------------------------------------------------------------------------------ # | Filename-based cache busting | # ------------------------------------------------------------------------------ # If you're not using a build process to manage your filename version revving, # you might want to consider enabling the following directives to route all # requests such as `/css/style.12345.css` to `/css/style.css`. # To understand why this is important and a better idea than `*.css?v231`, read: # http://stevesouders.com/blog/2008/08/23/revving-filenames-dont-use-querystring # # RewriteCond %{REQUEST_FILENAME} !-f # RewriteRule ^(.+)\.(\d+)\.(js|css|png|jpg|gif)$ $1.$3 [L] # # ------------------------------------------------------------------------------ # | File concatenation | # ------------------------------------------------------------------------------ # Allow concatenation from within specific CSS and JS files, e.g.: # Inside of `script.combined.js` you could have # # # and they would be included into this single file. # # # Options +Includes # AddOutputFilterByType INCLUDES application/javascript application/json # SetOutputFilter INCLUDES # # # Options +Includes # AddOutputFilterByType INCLUDES text/css # SetOutputFilter INCLUDES # # # ------------------------------------------------------------------------------ # | Persistent connections | # ------------------------------------------------------------------------------ # Allow multiple requests to be sent over the same TCP connection: # http://httpd.apache.org/docs/current/en/mod/core.html#keepalive. # Enable if you serve a lot of static content but, be aware of the # possible disadvantages! # # Header set Connection Keep-Alive #