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- OVERVIEW OF NEW FEATURES IN APACHE 1.2
-
- New features with this release, as extensions of the Apache functionality
- For more information, see the documentation included with this release
- (htdocs/manual/) or http://www.apache.org/docs/
-
- In addition to a number of bug fixes and internal performance
- enhancements, Apache 1.2 has the following specific new user
- features:
-
-
- *) HTTP/1.1 Compliance
- Aside from the optional proxy module (which operates as HTTP/1.0),
- Apache is conditionally compliant with the HTTP/1.1 proposed standard,
- as approved by the IESG and the IETF HTTP working group.
- HTTP/1.1 provides a much-improved protocol, and should allow for
- greater performance and efficiency when transferring files. Apache
- does, however, still work great with HTTP/1.0 browsers. We are very
- close to being unconditionally compliant; if you note any deviance
- from the proposed standard, please report it as a bug.
-
- *) eXtended Server Side Includes (XSSI)
- A new set of server-side include directives allows the user to
- better create WWW pages. This includes number of powerful new
- features, such as the ability to set variables and use conditional
- HTML.
-
- *) File-based and Regex-enabled Directive Sections
- The new <Files> section allows directives to be enabled based on
- full filename, not just directory and URL. In addition, <Files>
- sections can appear in .htaccess files. <Files>, along with
- <Directory> and <Location>, can also now be based on regular
- expressions, not just simple prefix matching.
-
- *) Browser-based Environment Variables
- Environment variables can now be set based on the User-Agent
- string of the browser. Combined with XSSI, this allows you to
- write browser-based conditional HTML documents.
-
- *) SetUID CGI Execution
- Apache now supports the execution of CGI scripts as users other
- than the server user. A number of security checks are built in to
- try and make this as safe as possible.
-
- *) URL Rewriting Module
- The optional mod_rewrite module is now included. This module can
- provide powerful URL mapping, using regular expressions. There's
- nothing this module can't do!
-
- *) Enhanced, Configurable Logging
- The optional mod_log_config included with earlier versions of
- Apache is now standard, and has been enhanced to allow logging of
- much more detail about the transaction, and can be used to open
- more than one log at once (each of which can have a different log
- format).
-
- *) User Tracking (Cookies) Revisions
- The mod_cookies included with previous versions of Apache has been
- renamed mod_usertrack, to more accurately reflect its function
- (some people inadvertently thought it enabled cookie support in
- Apache, which is not true - Apache supports the use of cookies
- directly). It is also now possible to disable the generation of
- cookies, even when the cookie module is compiled in. Also, an
- expiry time can be set on the cookies.
-
- *) Multiple IPs in <VirtualHost>
- The <VirtualHost> directive can now take more than one IP address
- or hostname. This lets a single vhost handles requests for
- multiple IPs or hostnames.
-
- *) CGI Debugging Environment
- ScriptLog allows you to now set up a log that records all input
- and output to failed CGI scripts. This includes environment
- variables, input headers, POST data, output, and more. This makes
- CGI scripts much easier to debug.
-
- *) Resource Limits for CGI Scripts
- New directives allow the limiting of resources used by CGI scripts
- (e.g. max CPU time). This is helpful in preventing 'runaway' CGI
- processes.
-
- *) Redirect Directive Can Return Alternate Status
- The Redirect directive can return permanent or temporary redirects,
- "Gone" or "See Other" HTTP status. For NCSA-compatibility,
- RedirectTemp and RedirectPermanent are also implemented.
-
- *) Graceful Restarts
- Apache can re-read the config files and re-open log files without
- terminating transactions in progress.
-
- *) Simplified Compilation
- The process of configuring Apache for compilation has been
- simplified.
-
- *) Add or Remove Options
- The Options directive can now add or remove options from those
- currently in force, rather than always replacing them.
-
- *) Command-line Help
- The -h command-line option now lists all the available directives.
-
- *) Optional Headers Module to Set or Remove HTTP Headers
- The optional mod_headers module can be used to set custom headers
- in the HTTP response. It can append to existing headers, replace
- them, or remove headers from the response.
-
- *) Conditional Config Directives
- A new <IfModule> section allows directives to be enabled only if a
- given module is loaded into the server.
-
- *) Authorization Directives Now Use NCSA-style Syntax
- The AuthUserFile, AuthGroupFile and AuthDigestFile commands now
- have a syntax compatible with the NCSA server.
-
- *) Optional Proxy Module
- An improved FTP, HTTP, and CONNECT mode SSL proxy is included with
- Apache 1.2. Some of the changes visible to users:
-
- - Improved FTP proxy supporting PASV mode
- - NoProxy directive for excluding sites to proxy
- - CONNECT mode ports are configurable from a list
- - NoCache * directive for disabling proxy caching
- - Numerous bug fixes
-
- *) Optional Example Module
- An example module that demonstrates many of the aspects of the
- API is now included with Apache as of version 1.2. It can be
- used as a base for those who wish to write their own Apache
- modules.
-