how to get cvs pserver working with xinetd?

[王宗涛]

I think i did all the needed to set up cvs pserver following the cvs howto in 
https://ccvs.cvshome.org/fom//cache/124.html,
, but it does not work
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I do make sure that  in my system  (redhat 9.0 with eveything installed)

file    cvspserver with correct content   
                        in directory /etc/xinetd.d/

line 
        cvspserver 2401/tcp 
        cvspserver 2401/udp       
                        in file /etc/service 

I aslo restart service xinetd 

but when I issue command  # netstat -lnp | grep cvs
the system echo nothing  ,so i think  the service cvspserver does not working
  
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what is the problem ?  can anybody help me!