1BACKUPD(8) Cyrus IMAP BACKUPD(8)
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6 backupd - Cyrus IMAP documentation
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8 Cyrus Backups server process
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11 backupd [ -C config-file ] [ -U uses ] [ -T timeout ] [ -D ]
12 [ -s ] [ -N ] [ -p ssf ]
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15 backupd is the Cyrus Backups server. It accepts Cyrus replication pro‐
16 tocol commands on its standard input and responds on its standard out‐
17 put. It MUST be invoked by master(8) with those descriptors attached
18 to a replication client connection, typically sync_client(8).
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20 backupd reads its configuration options out of the imapd.conf(5) file
21 unless specified otherwise by -C.
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23 backupd is generally configured to run on a dedicated backup server,
24 containing backup storage, but no IMAP service or mailbox storage.
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26 You must configure at least one backuppartition. User backups will be
27 distributed among the configured partitions. Note that there is no re‐
28 lationship between mailbox partitions and backuppartitions.
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30 If the directory log/user exists under the directory specified in the
31 configdirectory configuration option, then backupd will create protocol
32 telemetry logs for sessions authenticating as user. The telemetry logs
33 will be stored in the log/user directory with a filename of the backupd
34 process-id.
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37 -C config-file
38 Use the specified configuration file config-file rather than the
39 default imapd.conf(5).
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41 -U uses
42 The maximum number of times that the process should be used for
43 new connections before shutting down. The default is 250.
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45 -T timeout
46 The number of seconds that the process will wait for a new con‐
47 nection before shutting down. Note that a value of 0 (zero)
48 will disable the timeout. The default is 60.
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50 -D Run external debugger specified in debug_command.
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52 -p ssf Tell backupd that an external layer exists. An SSF (security
53 strength factor) of 1 means an integrity protection layer ex‐
54 ists. Any higher SSF implies some form of privacy protection.
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57 backupd is commonly included in the SERVICES section of cyrus.conf(5)
58 like so:
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60 SERVICES {
61 backupd cmd="backupd" listen="csync" prefork=0
62 }
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67 imapd.conf(5), master(8), sync_client(8)
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70 The Cyrus Team
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73 1993-2018, The Cyrus Team
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783.2.4 October 05, 2020 BACKUPD(8)