fud(8)

fud8

Provide information about user mailboxes

Usage

fud [-C config-file] [-U uses] [-T timeout] [-D]

*

Overview

FUD is a long lived datagram daemon started from cyrmaster that provides information about when a user last read their mail, when mail last arrived in a user's mailbox, and how many messages are recent for that user.

Note that for FUD to run properly you must set proto=udp in its cyrus.conf services entry. prefork=1 is also recommended. FUD will automatically proxy any and all FUD requests to the appropriate backend server if it is runing on a Cyrus Murder frontend machine.

FUD reads its configuration options out of the imapd.conf(5) file unless specified otherwise by -C.

Options

-C config-file

Read configuration options from config-file.

-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.

Files

/etc/imapd.conf

Default configuration file.

/etc/cyrus.conf

Cyrus Master process configuration file.

Releases

7 releases since Debian 3.0 (Woody); the text changed 3 times.

  1. 3.0
  2. 3.1–4.0
  3. 5.0–6.0
  4. 7–8

-D since Debian 3.1 (Sarge).

Bugs

Though not really a bug, FUD will silently ignore any requests that it does not consider valid.

Also not really a bug, FUD requires that the anonymous user has the 0 (zero) right on the mailbox in question. This is only a "bug" because 0 is not a standard IMAP ACL bit.

FUD is an experimental interface meant to provide information to build a finger-like service around. Eventually it should be superceded by a more standards-based protocol.

From cyrus-common 2.4.17+nocaldav-0+deb8u2 in Debian 8 (Jessie). Parsed by carta from the page's man source.