in reply to mod_perl: is it running?

You can check the Apache error_log, look for the following line (versions of Apache/mod_perl will probably vary):
[Mon Sep 17 05:29:13 2002] [notice] Apache/1.3.26 (Unix) mod_perl/1.27 + configured -- resuming normal operations
-- vek --

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Re^2: mod_perl: is it running?
by Aristotle (Chancellor) on Sep 17, 2002 at 13:04 UTC

    Just like blm's method and PixelRat's one, this indicator is only helpful in finding out whether Apache has mod_perl support at all. It does nothing to verify whether a specific script is served by mod_perl or runs under mod_cgi.

    Makeshifts last the longest.