 5.     NNTP 215

  .     -
         
 ,    ,  
  .

  "cancel"      
   ,    .  -
    "Message-ID".

cancel <Message-ID>

        
 UseNet-.    -
,    ,   "Sender:"  "From:"
   .

")   "ihave/sendme".          
ihave/sendme-,     () 
  (),        "ihave"
(   ()      "sendme").

ihave <Message-ID list> [<remotesys>]
sendme <Message-ID list> [<remotesys>]

,  ()   <1234@vax.berkeley.edu>  
    ().  ()   -  -
,    (),  ()  
"ihave <1234@vax.berkeley.edu> ".  () ,    -
-  ,     (), 
 "sendme <1234@vax.berkeley.edu> ".   -
 "sendme",  ()   ()  .

       ,  -
     "".

,       -
 ,    .  
    .   
,      (Message-ID)
    ,         -
 .

        (-
) .

newgroup <groupname> [moderated]

      "groupname".  -
      