here are a couple ways to check if apache is running with mod_perl
[localhost:~] ericpark% telnet eric 80 Trying 10.0.1.5... Connected to eric. Escape character is '^]'. GET / 1.1 __OUTPUT__ HTTP/1.1 200 OK Date: Tue, 27 Jul 2004 07:10:54 GMT Server: Apache/2.0.48 (Unix) mod_perl/1.99_13 Perl/v5.8.0 PHP/4.3.5
or check the error log after restarting apache as borisz said
you can look in the httpd conf file for the location of the error log

servername# grep mod_perl /var/log/httpd-error.log
[Tue Jul 27 00:10:37 2004\] \[notice\] Apache/2.0.48 (Unix) mod_perl/1 +.99_13 Perl/v5.8.0 PHP/4.3.5 configured -- resuming normal operations

here is a great article on perl.com covering installing and configuring mod_perl

In reply to Re: mod_perl.so installed, not running? by ercparker
in thread mod_perl.so installed, not running? by Anonymous Monk

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