MIME-headers, C variables of the Apache HTTP Server or
<code>struct tm</code> fields of the Unix system.
Most are documented elsewhere in the Manual or in
- the CGI specification. Those that are special to
- mod_rewrite include those below.</p>
+ the CGI specification.</p>
+
+ <p>SERVER_NAME and SERVER_PORT depend on the values of
+ <directive module="core">UseCanonicalName</directive> and
+ <directive module="core">UseCanonicalPhysicalPort</directive>
+ respectively.</p>
+
+ <p>Those that are special to mod_rewrite include those below.</p>
<note>
<dl>
<dt><code>IS_SUBREQ</code></dt>