Some problems come up very often on the mailing list. If you think some important problem that is being reported frequently on the list is not included below, even if it is found elsewhere in the Guide, please tell me.
See the section "my() Scoped Variable in Nested Subroutines".
See the section Evil things might happen when using PerlFreshRestart
If you get the mod_perl binary package (i.e. RPM) and it doesn't work, try and get a static install to work. mod_perl DSO does not work reliably. If mod_perl is compiled statically into Apache, it just works, and you don't need to configure the web server with anything, and you'll probably need to comment out lines like "LoadModule ...".
Also dee the section" mod_perl Deployment Overview".
To install mod_perl_guide, copy and paste the appropriate command in to your terminal.
cpanm
cpanm mod_perl_guide
CPAN shell
perl -MCPAN -e shell install mod_perl_guide
For more information on module installation, please visit the detailed CPAN module installation guide.