understanding my port scan

[RompStar]

I scanned my own computer 127.0.0.1

and here are the results, I am trying understand all the services running, what they are, if I should have them running, for security reasons, since I run a web server, so httpd is good, here are the results:

Open TCP Port: 80 http
Open TCP Port: 427 svrloc
Open TCP Port: 631 ipp
Open TCP Port: 1033 netinfo-local
Open TCP Port: 3703 adobeserver-3
Open TCP Port: 9503

I know port 80 is my httpd, what are the others, do I need them, how do I ensure they are safe and how to turn off if I don't need it ?

Thanks!

[bobw]

427 (svrloc) is the Server Location daemon/protocol, which helps my Mac and other Macs find each other’s services on the network.

631 used for printing

1033 is the NetInfo daemon

3703 used by Version Cue

9503 ?? - maybe a university?