Mail Reflectors
The way most people keep up to date on network news is
through subscription to a number of mail reflectors. Mail
reflectors are special electronic mailboxes which, when they
receive a message, resend it to a list of other mailboxes.
This in effect creates a discussion group on a particular
topic. Each subscriber sees all the mail forwarded by the
reflector, and if one wants to put his "two cents" in sends
a message with the comments to the reflector....
The general format to subscribe to a mail list is to find
the address reflector and append the string -REQUEST to the
mailbox name (not the host name). For example, if you
wanted to take part in the mailing list for NSFnet reflected
by NSFNET@NNSC.NSF.NET, one sends a request to
NSFNET-REQUEST@NNSC.NSF.NET. This may be a wonderful
scheme, but the problem is that you must know the list
exists in the first place. It is suggested that, if you are
interested, you read the mail from one list (like NSFNET) and you
will probably become familiar with the existence of others. A
registration service for mail reflectors is provided by the NIC in
the files NETINFO:INTEREST-GROUPS-1.TXT,
NETINFO:INTEREST-GROUPS-2.TXT, and NETINFO:INTEREST-GROUPS3.TXT.
The NSFNET mail reflector is targeted at those people who have a
day to day interest in the news of the NSFnet (the backbone,
regional network, and Internet inter-connection site workers). The
messages are reflected by a central location and are sent as
separate messages to each subscriber. This creates hundreds of
messages on the wide area networks where bandwidth is the
scarcest.
There are two ways in which a campus could spread the news and not
cause these messages to inundate the wide area networks. One is to
re-reflect the message on the campus. That is, set up a reflector
on a local machine which forwards the message to a campus
distribution list. The other is to create an alias on a campus
machine which places the messages into a notesfile on the topic.
Campus users who want the information could access the notesfile
and see the messages that have been sent since their last access.
One might also elect to have the campus wide area network liaison
screen the messages in either case and only forward those which
are considered of merit. Either of these schemes allows one
message to be sent to the campus, while allowing wide distribution
within.
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