where are these services running from?!

argh, i'm SO not used to xinetd. i already can't stand it. but this distribution didn't come with inetd and i don't want to just throw an old version of inetd on here, so.. *sighs*

anyways, when i run nmap -v on my new server, this is what i get:

Port       State       Service
21/tcp     open        ftp                     
22/tcp     open        ssh                     
25/tcp     open        smtp                    
137/tcp    filtered    netbios-ns              
138/tcp    filtered    netbios-dgm       
139/tcp    filtered    netbios-ssn             
445/tcp    filtered    microsoft-ds            
1080/tcp   filtered    socks

however, xinetd isn't running. so why are the netbios and socks ports not closed? and what exactly does "filtered" mean? i want the netbios and socks ports closed down completely if possible.

on a side note, does anyone know where i can get an rpm for a recent copy of inetd? grr...