Apache

Apache 1.3 :


* DSO Support
* Unified Server Configuration => Merger of httpd.conf, srm.conf and access.conf
* Apache Extension (apxs) tool => Used to provide DSO installation & activation
* Directory Path => Default directory path updated from /usr/local/etc/apache to /usr/local/apache
* httpd -s
* Support for Windows Environment


Apache 2.0 :


* IPV 6 Support
* Unicode support - Windows NT (utf-8 files name encoading)
* Including PCRE Support (PERL Compatible Regular Expression Library)
* Module Enhancement =>
            mod_ssl -> New
            mod_deflate -> New
            mod_auth_ladap -> New
            mod_file_cache
            mod_include

Apache 2.2:

* Caching : Many changes in mod_cache, mod_disk_cache and mod_mem_cache. htcacheclean to clean the mod_disk_cache
* Gracefull - Start/Stop/Restart
* Mod_Proxy_Balancer : Provide Load Balancing Services for ajp support to Apache JServer Protocol 1.3 version by tomcat.
* Large File Support => Provides more than 2 GB on 32 bit Unix file System.
* httpd -m
Apache 2.0 Installation :

Linux Boot Process

Booting & Shutting Down :

            When a computer is turned on, it execute boot coad that stored in ROM. That code is turned attempt to figure out how to load and start the kernel. The kernel probes the system Hardware and then spawns the system's init process, which alwasys process number 1.

   init - always process number 1
   rc files - runcom or run command