Simple Monitoring Of TCP/IP Question

[Michael Goodell]

Hello . . .

Looking for a *simple* protocol monitoring solution to test connectivity 
of various facets of a system, i.e. HTTP / HTTPS / POP3 / SMTP etc. I am 
not looking, and don't want to install a *heavy* application like Nagios 
etc, but rather something much more simple.

I have seen checkservice (/usr/ports/sysutils/checkservice) in the past 
and that looked quite simple to implement. Another question is there 
anything more preferred that checkservice that anyone knows about?

Thank you in advance for any direction.