ConstantsConstants -- predefined constants NET_NNTP_PROTOCOL_DEFAULT_HOST
     default NNTP hostname: localhost
     NET_NNTP_PROTOCOL_DEFAULT_PORT
     default NNTP port: 119
     NET_NNTP_AUTHORIGINAL
     authentication provided by the NNTP-server
     NET_NNTP_AUTHSIMPLE
     authentication provided by the NNTP-server
     NET_NNTP_AUTHGENERIC
     authentication provided by the NNTP-server
     PEAR_NNTP_ALL
     deprecated (never used)
     PEAR_NNTP_LIST
     deprecated (never used)
     PEAR_NNTP_NAMES
     deprecated (never used)
     PEAR_NNTP_AUTHORIGINAL
     deprecated (use NET_NNTP_AUTHORIGINAL instead)
     PEAR_NNTP_AUTHSIMPLE
     deprecated (use NET_NNTP_AUTHSIMPLE instead)
     PEAR_NNTP_AUTHGENERIC
     deprecated (use NET_NNTP_AUTHGENERIC instead)
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