Sentry FAQ
From The Network People, Inc. - Wiki
What Platforms is Sentry Tested On?
Sentry should run on any UNIX variant on which tcpwrappers is installed, which is nearly all. It has been tested on the following platforms:
- FreeBSD
- Mac OS X (10.5, 10.6)
- Linux (CentOS, Debian, Ubuntu)
I get an error saying a perl module isn't available
You are probably running a variant of Linux. The entity that prepared it for you installed perl without the modules that perl ships with. Ask them why they did that, and if they would fix it. You can fix it yourself by installing perl with your package manager of choice:
yum install perl
or
apt-get install perl