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# Cyrus IMAP

# nntpd

NNTP server process

## Synopsis

    nntpd [ -C config-file ] [ -U uses ] [ -T timeout ] [ -D ]
        [ -s ] [ -r ] [ -f ] [ -p ssf ]

## Description

nntpd is an NNTP server. It accepts commands on its standard input and responds on its standard output. It MUST invoked by master(8) with those descriptors attached to a remote client connection.

nntpd reads its configuration options out of the imapd.conf(5) file unless specified otherwise by -C. The optional `newsprefix` setting specifies a prefix to be prepended to newsgroup names to make the corresponding IMAP mailbox names. The optional `newspostuser` setting specifies the special userid to be used when constructing the To: header address for following up to articles when read via IMAP. The optional `newspeer` setting specifies the fully qualified hostname of the upstream news server to which articles are fed. The optional `allownewnews` setting enables the NNTP NEWNEWS command.

Note

For servers with a large volume of articles, the NEWNEWS command can be expensive.

If the directory `<configdirectory>/log/`user exists, then nntpd will create protocol telemetry logs for sessions authenticating as user. The telemetry logs will be stored in the `log/`user directory with a filename of the nntpd process-id.

## Options

-C config-file

  Use the specified configuration file config-file rather than the default imapd.conf(5).

-U uses

  The maximum number of times that the process should be used for new connections before shutting down. The default is 250.

-T timeout

  The number of seconds that the process will wait for a new connection before shutting down. Note that a value of 0 (zero) will disable the timeout. The default is 60.

-D

  Run external debugger specified in debug_command.

-s

  Serve NNTP over SSL (https). All data to and from nntpd is encrypted using the Secure Sockets Layer.

-r

  Only allow NNTP reader commands. Permitted clients will only be allowed to read/post articles.

-f

  Only allow NNTP feeder commands. Permitted clients will only be allowed to feed articles (no reading).

-p ssf

  Tell nntpd that an external layer exists. An SSF (security strength factor) of 1 means an integrity protection layer exists. Any higher SSF implies some form of privacy protection.

## Files

/etc/imapd.conf

## See Also

imapd.conf(5), master(8)