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doveadm-director - Online in the Cloud

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This is the command doveadm-director that can be run in the OnWorks free hosting provider using one of our multiple free online workstations such as Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator

PROGRAM:

NAME


doveadm-director - Manage Dovecot directors

SYNOPSIS


doveadm [-Dv] [-f formatter] director command [OPTIONS] [ARGUMENTS]

DESCRIPTION


doveadm director can be used to manage and query the status of the list of backend mail
servers where Dovecot proxy can redirect connections to.

OPTIONS


Global doveadm(1) options:

-D Enables verbosity and debug messages.

-f formatter
Specifies the formatter for formatting the output. Supported formatters are:

flow prints each line with key=value pairs.

pager prints each key: value pair on its own line and separates records with form
feed character (^L).

tab prints a table header followed by tab separated value lines.

table prints a table header followed by adjusted value lines.

-o setting=value
Overrides the configuration setting from /etc/dovecot/dovecot.conf and from the
userdb with the given value. In order to override multiple settings, the -o option
may be specified multiple times.

-v Enables verbosity, including progress counter.

Command specific options:

-a director_socket_path
This option is used to specify an alternative socket. The option's argument is
either an absolute path to a local UNIX domain socket, or a hostname and port
(hostname:port), in order to connect a remote host via a TCP socket.

By default doveadm(1) will use the socket /var/run/dovecot/director-admin. The
socket may be located in another directory, when the default base_dir setting was
overridden in /etc/dovecot/dovecot.conf.

ARGUMENTS


host A mail server's hostname or IP address.

ip A director's IP address.

port The TCP port, on which the director server is listening for connections. The
default port is the same as what the local director is listening in.

user Is a user's login name. Depending on the configuration, a login name may be for
example jane or john@example.com.

vhost_count
The number of "virtual hosts" to assign to this server. The higher the number is
relative to other servers, the more connections it gets. The default is 100.

COMMANDS


director add
doveadm director add [-a director_socket_path] host [vhost_count]

The command's tasks are:

* assign a new mail server to the director.

* increase/decrease the vhost_count of an already assigned server.

director dump
doveadm director dump [-a director_socket_path]

Dump the current host configuration as doveadm commands. These commands can be easily run
after a full director cluster restart to get back to the dumped state.

director flush
doveadm director flush [-a director_socket_path] host|all

doveadm director flush drops all user associations either from the given host or all
hosts. This command is intended mainly for testing purposes.

director kick
doveadm director kick [-a director_socket_path] user

Kick the specified user from the entire Dovecot cluster. This is similar to doveadm proxy
kick, but this command needs to be run only once instead of in each director server.

director map
doveadm director map [-a director_socket_path] [-f users_file] [-h|-u] [host]

The command doveadm director map is used to list current userhost mappings. Note that
the director works using 32bit hashes which makes collisions quite likely, so this command
can't reliably list exactly which users have recently logged in.

-f users_file
Path to a file containing all user names (one per line). When given no userdb
lookup will be performed. This may be a helpful alternative when for example the
network connection to the LDAP or SQL server is slow.

-h Output all usernames, which match the given hash.

-u Output hash for the given username.

host Specify a server's IP address or hostname, to list only mappings of the given host.

director move
doveadm director move [-a director_socket_path] user host

Move the user to the specified backend host. If the user has any existing connections
they will be killed.

director remove
doveadm director remove [-a director_socket_path] host

Use this command in order to remove the given host from the director.

director ring add
doveadm director ring add [-a director_socket_path] ip [port]

Add a new director to the ring.

director ring remove
doveadm director ring remove [-a director_socket_path] ip [port]

Remove a director from the ring.

director ring status
doveadm director ring status [-a director_socket_path]

Show the status of all the directors currently in the ring.

director status
doveadm director status [-a director_socket_path] [user]

This command is used to show the current usage of all assigned mail servers.
When a user name is given, this command shows which server the user is currently assigned
to, where the user will be assigned after the current saved assignment gets removed and
where the user would be assigned to if the whole proxy cluster was restarted fresh.

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