I'm setting up security using an htaccess file for a site I'm building in wordpress running on a WAMP localhost server setup. I'm seeing references to such htaccess entries as <ifmodule mod_deflate.c> and <ifmodule mod_security.c> when searching the Net for security solutions. Well, the Apache httpd file in my WAMP installation---the latest---has ".so" file extensions, not the ".c" extensions I keep seeing in the code examples I'm finding on the Net. Is there a difference in these two extensions? Does it have to do with WAMP as apposed to a live server? Are these two extensions interchangeable---can I just use the .so extensions in my htaccess file when I go live with the site, or do my extensions have to be the .c that I see in code examples? Can anyone help me with this? Thanks.
Hi, ".c" is a C or C++ programing language written source code of program. ".so" is a compiled Unix or Linux program shared library. Like Windows ".dll" files. You suppose compile first your ".c" file to ".so" and after that you can start use. Rudolf
The difference is "so" is a compiled module for use on a Linux server, and "c" is the source code before it gets compiled. On a windows server you're going to have "dll" instead of "so", but you will still reference "module_name.c" in your <ifModule> sections. http://httpd.apache.org/docs/2.0/mod/core.html#ifmodule There are actually two forms you can use when referring to modules in directives such as <IfModule>, the form you've seen already which is the pre-compiled file name mentioned in that link. Then there's also a proper name, or "module identifier" for each module. With the bundled modules, for instance mod_cache you can lookup both the name of the source file you would use, as well as the module identifier. In the case of mod_cache that would be either <IfModule mod_cache.c> or <IfModule cache_module>.