848 lines
21 KiB
ReStructuredText
848 lines
21 KiB
ReStructuredText
Server config file format
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=========================
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General format
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~~~~~~~~~~~~~~
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The config file consists of a series of BIND-style blocks. Each block
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consists of a series of values inside it which pertain to configuration
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settings that apply to the given block.
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Several values take lists of values and have defaults preset inside
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them. Prefix a keyword with a tilde (``~``) to override the default and
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disable it.
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A line may also be a .include directive, which is of the form::
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.include "file"
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and causes file to be read in at that point, before the rest of
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the current file is processed. Relative paths are first tried relative
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to ``PREFIX`` and then relative to ``ETCPATH`` (normally ``PREFIX``/etc).
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Anything from a ``#`` to the end of a line is a comment. Blank lines are
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ignored. C-style comments are also supported.
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Specific blocks and directives
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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Not all configuration blocks and directives are listed here, only the
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most common ones. More blocks and directives will be documented in later
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revisions of this manual.
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loadmodule directive
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--------------------
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::
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loadmodule "text";
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Loads a module into the IRCd. In charybdis 1.1, most modules are
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automatically loaded in. In future versions, it is intended to remove
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this behaviour as to allow for easy customization of the IRCd's
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featureset.
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serverinfo {} block
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-------------------
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::
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serverinfo {
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name = "text";
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sid = "text";
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description = "text";
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network_name = "text";
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network_desc = "text";
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hub = boolean;
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vhost = "text";
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vhost6 = "text";
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};
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The serverinfo {} block defines the core operational parameters of the
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IRC server.
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**serverinfo {} variables**
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name
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The name of the IRC server that you are configuring. This must
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contain at least one dot. It is not necessarily equal to any DNS
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name. This must be unique on the IRC network.
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sid
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A unique ID which describes the server. This consists of one digit
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and two characters which can be digits or letters.
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description
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A user-defined field of text which describes the IRC server. This
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information is used in ``/links`` and ``/whois`` requests. Geographical
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location information could be a useful use of this field, but most
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administrators put a witty saying inside it instead.
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network\_name
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The name of the IRC network that this server will be a member of.
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This is used in the welcome message and ``NETWORK=`` in 005.
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hub
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A boolean which defines whether or not this IRC server will be
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serving as a hub, i.e. have multiple servers connected to it.
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vhost
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<<<<<<< .merge_file_cTfvge
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An optional text field which defines an IP from which to connect
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outward to other IRC servers.
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vhost6
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An optional text field which defines an IPv6 IP from which to
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connect outward to other IRC servers.
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=======
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An optional text field which defines an IPv4 address from which
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to connect outward to other IRC servers.
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vhost6
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An optional text field which defines an IPv6 address from which
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to connect outward to other IRC servers.
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>>>>>>> .merge_file_3UzJEV
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admin {} block
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--------------
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::
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admin {
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name = "text";
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description = "text";
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email = "text";
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};
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This block provides the information which is returned by the ``ADMIN``
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command.
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name
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The name of the administrator running this service.
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description
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The description of the administrator's position in the network.
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email
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A point of contact for the administrator, usually an e-mail address.
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class {} block
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--------------
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::
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class "name" {
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ping_time = duration;
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number_per_ident = number;
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number_per_ip = number;
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number_per_ip_global = number;
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cidr_ipv4_bitlen = number;
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cidr_ipv6_bitlen = number;
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number_per_cidr = number;
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max_number = number;
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sendq = size;
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};
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class "name" {
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ping_time = duration;
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connectfreq = duration;
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max_number = number;
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sendq = size;
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};
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Class blocks define classes of connections for later use. The class name
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is used to connect them to other blocks in the config file (auth{} and
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connect{}). They must be defined before they are used.
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Classes are used both for client and server connections, but most
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variables are different.
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**class {} variables: client classes**
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ping\_time
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The amount of time between checking pings for clients, e.g.: 2
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minutes
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number\_per\_ident
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The amount of clients which may be connected from a single identd
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username on a per-IP basis, globally. Unidented clients all count as
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the same username.
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number\_per\_ip
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The amount of clients which may be connected from a single IP
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address.
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number\_per\_ip\_global
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The amount of clients which may be connected globally from a single
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IP address.
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cidr\_ipv4\_bitlen
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The netblock length to use with CIDR-based client limiting for IPv4
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users in this class (between 0 and 32).
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cidr\_ipv6\_bitlen
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The netblock length to use with CIDR-based client limiting for IPv6
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users in this class (between 0 and 128).
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number\_per\_cidr
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The amount of clients which may be connected from a single netblock.
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If this needs to differ between IPv4 and IPv6, make different
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classes for IPv4 and IPv6 users.
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max\_number
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The maximum amount of clients which may use this class at any given
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time.
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sendq
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The maximum size of the queue of data to be sent to a client before
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it is dropped.
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**class {} variables: server classes**
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ping\_time
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The amount of time between checking pings for servers, e.g.: 2
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minutes
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connectfreq
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The amount of time between autoconnects. This must at least be one
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minute, as autoconnects are evaluated with that granularity.
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max\_number
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The amount of servers to autoconnect to in this class. More
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precisely, no autoconnects are done if the number of servers in this
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class is greater than or equal max\_number
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sendq
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The maximum size of the queue of data to be sent to a server before
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it is dropped.
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auth {} block
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-------------
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::
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auth {
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user = "hostmask";
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password = "text";
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spoof = "text";
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flags = list;
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class = "text";
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};
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auth {} blocks allow client connections to the server, and set various
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properties concerning those connections.
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Auth blocks are evaluated from top to bottom in priority, so put special
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blocks first.
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auth {} variables
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~~~~~~~~~~~~~~~~~
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user
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A hostmask (``user@host``) that the auth {} block applies to. It is
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matched against the hostname and IP address (using :: shortening for
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IPv6 and prepending a 0 if it starts with a colon) and can also use
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CIDR masks. You can have multiple user entries.
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password
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An optional password to use for authenticating into this auth{}
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block. If the password is wrong the user will not be able to connect
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(will not fall back on another auth{} block).
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spoof
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An optional fake hostname (or ``user@host``) to apply to users
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authenticated to this auth{} block. In ``STATS i`` and ``TESTLINE``, an
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equals sign (=) appears before the ``user@host`` and the spoof is shown.
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flags
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A list of flags to apply to this ``auth{}`` block. They are listed
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below. Some of the flags appear as a special character,
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parenthesized in the list, before the ``user@host`` in ``STATS i`` and
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``TESTLINE``.
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class
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A name of a class to put users matching this auth{} block into.
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<<<<<<< .merge_file_cTfvge
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=======
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umodes
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Additional umodes to apply to the default_umodes upon connect.
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>>>>>>> .merge_file_3UzJEV
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auth {} flags
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~~~~~~~~~~~~~
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encrypted
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The password used has been encrypted.
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spoof\_notice
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Causes the IRCd to send out a server notice when activating a spoof
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provided by this auth{} block.
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exceed\_limit (>)
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Users in this auth{} block can exceed class-wide limitations.
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dnsbl\_exempt ($)
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Users in this auth{} block are exempted from DNS blacklist checks.
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However, they will still be warned if they are listed.
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kline\_exempt (^)
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Users in this auth{} block are exempted from DNS blacklists, k:lines
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and x:lines.
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spambot\_exempt
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Users in this auth{} block are exempted from spambot checks.
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shide\_exempt
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Users in this auth{} block are exempted from some serverhiding
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effects.
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jupe\_exempt
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Users in this auth{} block do not trigger an alarm when joining
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juped channels.
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resv\_exempt
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Users in this auth{} block may use reserved nicknames and channels.
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.. note:: The initial nickname may still not be reserved.
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flood\_exempt (\|) Users in this auth{} block may send arbitrary
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amounts of commands per time unit to the server. This does not
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exempt them from any other flood limits. You should use this
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setting with caution.
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no\_tilde (-)
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Users in this auth{} block will not have a tilde added to their
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username if they do not run identd.
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need\_ident (+)
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Users in this auth{} block must have identd, otherwise they will be
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rejected.
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need\_ssl
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Users in this auth{} block must be connected via SSL/TLS, otherwise
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they will be rejected.
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need\_sasl
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Users in this auth{} block must identify via SASL, otherwise they
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will be rejected.
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exempt {} block
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---------------
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::
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exempt {
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ip = "ip";
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};
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An exempt block specifies IP addresses which are exempt from ``D:lines`` and
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throttling. Multiple addresses can be specified in one block. Clients
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coming from these addresses can still be ``K/G/X:lined`` or banned by a DNS
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blacklist unless they also have appropriate flags in their auth{} block.
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**exempt {} variables**
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ip
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The IP address or CIDR range to exempt.
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privset {} block
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----------------
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::
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privset {
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extends = "name";
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privs = list;
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};
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A privset (privilege set) block specifies a set of operator privileges.
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**privset {} variables**
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extends
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An optional privset to inherit. The new privset will have all
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privileges that the given privset has.
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privs
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Privileges to grant to this privset. These are described in the
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operator privileges section.
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operator {} block
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-----------------
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::
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operator "name" {
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user = "hostmask";
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password = "text";
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rsa_public_key_file = "text";
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umodes = list;
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snomask = "text";
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flags = list;
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};
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Operator blocks define who may use the ``OPER`` command to gain extended
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privileges.
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**operator {} variables**
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user
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A hostmask that users trying to use this operator {} block must
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match. This is checked against the original host and IP address;
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CIDR is also supported. So auth {} spoofs work in operator {}
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blocks; the real host behind them is not checked. Other kind of
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spoofs do not work in operator {} blocks; the real host behind them
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is checked.
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Note that this is different from charybdis 1.x where all kinds of
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spoofs worked in operator {} blocks.
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password
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A password used with the ``OPER`` command to use this operator {} block.
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Passwords are encrypted by default, but may be unencrypted if
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~encrypted is present in the flags list.
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rsa\_public\_key\_file
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An optional path to a RSA public key file associated with the
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operator {} block. This information is used by the ``CHALLENGE``
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command, which is an alternative authentication scheme to the
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traditional ``OPER`` command.
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umodes
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A list of usermodes to apply to successfully opered clients.
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snomask
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An snomask to apply to successfully opered clients.
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privset
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The privilege set granted to successfully opered clients. This must
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be defined before this operator{} block.
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flags
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A list of flags to apply to this operator{} block. They are listed
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below.
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**operator {} flags**
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encrypted
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The password used has been encrypted. This is enabled by default,
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use ~encrypted to disable it.
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need\_ssl
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Restricts use of this operator{} block to SSL/TLS connections only.
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connect {} block
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----------------
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::
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connect "name" {
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host = "text";
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send_password = "text";
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accept_password = "text";
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port = number;
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hub_mask = "mask";
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leaf_mask = "mask";
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class = "text";
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flags = list;
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aftype = protocol;
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};
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Connect blocks define what servers may connect or be connected to.
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**connect {} variables**
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host
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The hostname or IP to connect to.
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.. note:: Furthermore, if a hostname is used, it must have an
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``A`` or ``AAAA`` record (no ``CNAME``) and it must be
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the primary hostname for inbound connections to work.
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<<<<<<< .merge_file_cTfvge
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IPv6 addresses must be in ``::`` shortened form; addresses which
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then start with a colon must be prepended with a zero, for
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example ``0::1``.
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=======
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>>>>>>> .merge_file_3UzJEV
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send\_password
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The password to send to the other server.
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accept\_password
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The password that should be accepted from the other server.
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port
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The port on the other server to connect to.
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hub\_mask
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An optional domain mask of servers allowed to be introduced by this
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link. Usually, "\*" is fine. Multiple hub\_masks may be specified,
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and any of them may be introduced. Violation of hub\_mask and
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leaf\_mask restrictions will cause the local link to be closed.
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leaf\_mask
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An optional domain mask of servers not allowed to be introduced by
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this link. Multiple leaf\_masks may be specified, and none of them
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may be introduced. leaf\_mask has priority over hub\_mask.
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class
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The name of the class this server should be placed into.
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flags
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A list of flags concerning the connect block. They are listed below.
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aftype
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The protocol that should be used to connect with, either ipv4 or
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<<<<<<< .merge_file_cTfvge
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ipv6. This defaults to ipv4 unless host is a numeric IPv6 address.
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=======
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ipv6. This defaults to neither, allowing connection using either
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address family.
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>>>>>>> .merge_file_3UzJEV
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**connect {} flags**
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encrypted
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The value for accept\_password has been encrypted.
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autoconn
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The server should automatically try to connect to the server defined
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in this connect {} block if it's not connected already and
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max\_number in the class is not reached yet.
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compressed
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Ziplinks should be used with this server connection. This compresses
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traffic using zlib, saving some bandwidth and speeding up netbursts.
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If you have trouble setting up a link, you should turn this off as
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it often hides error messages.
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topicburst
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Topics should be bursted to this server.
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This is enabled by default.
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listen {} block
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---------------
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::
|
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listen {
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host = "text";
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port = number;
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};
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A listen block specifies what ports a server should listen on.
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**listen {} variables**
|
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|
|
host
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An optional host to bind to. Otherwise, the ircd will listen on all
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available hosts.
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port
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A port to listen on. You can specify multiple ports via commas, and
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define a range by seperating the start and end ports with two dots
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(..).
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modules {} block
|
|
----------------
|
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::
|
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|
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modules {
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path = "text";
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module = text;
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};
|
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|
|
The modules block specifies information for loadable modules.
|
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|
|
**modules {} variables**
|
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|
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path
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Specifies a path to search for loadable modules.
|
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module
|
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Specifies a module to load, similar to loadmodule.
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general {} block
|
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----------------
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::
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modules {
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values
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};
|
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The general block specifies a variety of options, many of which were in
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``config.h`` in older daemons. The options are documented in
|
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``reference.conf``.
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channel {} block
|
|
----------------
|
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::
|
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modules {
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values
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};
|
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|
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The channel block specifies a variety of channel-related options, many
|
|
of which were in ``config.h`` in older daemons. The options are
|
|
documented in ``reference.conf``.
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|
|
serverhide {} block
|
|
-------------------
|
|
|
|
::
|
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|
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modules {
|
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values
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};
|
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|
|
The serverhide block specifies options related to server hiding. The
|
|
options are documented in ``reference.conf``.
|
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|
|
blacklist {} block
|
|
------------------
|
|
|
|
::
|
|
|
|
blacklist {
|
|
host = "text";
|
|
reject_reason = "text";
|
|
};
|
|
|
|
The blacklist block specifies DNS blacklists to check. Listed clients
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|
will not be allowed to connect. IPv6 clients are not checked against
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these.
|
|
|
|
Multiple blacklists can be specified, in pairs with first host then
|
|
reject\_reason.
|
|
|
|
**blacklist {} variables**
|
|
|
|
host
|
|
The DNSBL to use.
|
|
|
|
reject\_reason
|
|
The reason to send to listed clients when disconnecting them.
|
|
|
|
alias {} block
|
|
--------------
|
|
|
|
::
|
|
|
|
alias "name" {
|
|
target = "text";
|
|
};
|
|
|
|
Alias blocks allow the definition of custom commands. These commands
|
|
send ``PRIVMSG`` to the given target. A real command takes precedence above
|
|
an alias.
|
|
|
|
**alias {} variables**
|
|
|
|
target
|
|
The target nick (must be a network service (umode ``+S``)) or
|
|
user@server. In the latter case, the server cannot be this server,
|
|
only opers can use user starting with "opers" reliably and the user
|
|
is interpreted on the target server only so you may need to use
|
|
nick@server instead).
|
|
|
|
cluster {} block
|
|
----------------
|
|
|
|
::
|
|
|
|
cluster {
|
|
name = "text";
|
|
flags = list;
|
|
};
|
|
|
|
The cluster block specifies servers we propagate things to
|
|
automatically. This does not allow them to set bans, you need a separate
|
|
shared{} block for that.
|
|
|
|
Having overlapping cluster{} items will cause the command to be executed
|
|
twice on the target servers. This is particularly undesirable for ban
|
|
removals.
|
|
|
|
The letters in parentheses denote the flags in ``/stats`` U.
|
|
|
|
**cluster {} variables**
|
|
|
|
name
|
|
The server name to share with, this may contain wildcards and may be
|
|
stacked.
|
|
|
|
flags
|
|
The list of what to share, all the name lines above this (up to
|
|
another flags entry) will receive these flags. They are listed
|
|
below.
|
|
|
|
**cluster {} flags**
|
|
|
|
kline (K)
|
|
Permanent ``K:lines``
|
|
|
|
tkline (k)
|
|
Temporary ``K:lines``
|
|
|
|
unkline (U)
|
|
``K:line`` removals
|
|
|
|
xline (X)
|
|
Permanent ``X:lines``
|
|
|
|
txline (x)
|
|
Temporary ``X:lines``
|
|
|
|
unxline (Y)
|
|
``X:line`` removals
|
|
|
|
resv (Q)
|
|
Permanently reserved nicks/channels
|
|
|
|
tresv (q)
|
|
Temporarily reserved nicks/channels
|
|
|
|
unresv (R)
|
|
``RESV`` removals
|
|
|
|
locops (L)
|
|
``LOCOPS`` messages (sharing this with \* makes ``LOCOPS`` rather similar to
|
|
``OPERWALL`` which is not useful)
|
|
|
|
all
|
|
All of the above
|
|
|
|
shared {} block
|
|
---------------
|
|
|
|
::
|
|
|
|
shared {
|
|
oper = "user@host", "server";
|
|
flags = list;
|
|
};
|
|
|
|
The shared block specifies opers allowed to perform certain actions on
|
|
our server remotely. These are ordered top down. The first one matching
|
|
will determine the oper's access. If access is denied, the command will
|
|
be silently ignored.
|
|
|
|
The letters in parentheses denote the flags in ``/stats U``.
|
|
|
|
**shared {} variables**
|
|
|
|
oper
|
|
The user@host the oper must have, and the server they must be on.
|
|
This may contain wildcards.
|
|
|
|
flags
|
|
The list of what to allow, all the oper lines above this (up to
|
|
another flags entry) will receive these flags. They are listed
|
|
below.
|
|
|
|
.. note:: While they have the same names, the flags have subtly
|
|
different meanings from those in the cluster{} block.
|
|
|
|
**shared {} flags**
|
|
|
|
kline (K)
|
|
Permanent and temporary ``K:lines``
|
|
|
|
tkline (k)
|
|
Temporary ``K:lines``
|
|
|
|
unkline (U)
|
|
``K:line`` removals
|
|
|
|
xline (X)
|
|
Permanent and temporary ``X:lines``
|
|
|
|
txline (x)
|
|
Temporary ``X:lines``
|
|
|
|
unxline (Y)
|
|
``X:line`` removals
|
|
|
|
resv (Q)
|
|
Permanently and temporarily reserved nicks/channels
|
|
|
|
tresv (q)
|
|
Temporarily reserved nicks/channels
|
|
|
|
unresv (R)
|
|
``RESV`` removals
|
|
|
|
all
|
|
All of the above; this does not include locops, rehash, dline,
|
|
tdline or undline.
|
|
|
|
locops (L)
|
|
``LOCOPS`` messages (accepting this from \* makes ``LOCOPS`` rather similar
|
|
to ``OPERWALL`` which is not useful); unlike the other flags, this can
|
|
only be accepted from \*@\* although it can be restricted based on
|
|
source server.
|
|
|
|
rehash (H)
|
|
``REHASH`` commands; all options can be used
|
|
|
|
dline (D)
|
|
Permanent and temporary ``D:lines``
|
|
|
|
tdline (d)
|
|
Temporary ``D:lines``
|
|
|
|
undline (E)
|
|
``D:line`` removals
|
|
|
|
none
|
|
Allow nothing to be done
|
|
|
|
service {} block
|
|
----------------
|
|
|
|
::
|
|
|
|
service {
|
|
name = "text";
|
|
};
|
|
|
|
The service block specifies privileged servers (services). These servers
|
|
have extra privileges such as setting login names on users and
|
|
introducing clients with umode ``+S`` (unkickable, hide channels, etc). This
|
|
does not allow them to set bans, you need a separate shared{} block for
|
|
that.
|
|
|
|
Do not place normal servers here.
|
|
|
|
Multiple names may be specified but there may be only one service{}
|
|
block.
|
|
|
|
**service {} variables**
|
|
|
|
name
|
|
The server name to grant special privileges. This may not contain
|
|
wildcards.
|
|
|
|
Hostname resolution (DNS)
|
|
~~~~~~~~~~~~~~~~~~~~~~~~~
|
|
|
|
Charybdis uses solely DNS for all hostname/address lookups (no
|
|
``/etc/hosts`` or anything else). The DNS servers are taken from
|
|
``/etc/resolv.conf``. If this file does not exist or no valid IP
|
|
addresses are listed in it, the local host (``127.0.0.1``) is used. (Note
|
|
that the latter part did not work in older versions of Charybdis.)
|
|
|
|
IPv4 as well as IPv6 DNS servers are supported, but it is not possible
|
|
to use both IPv4 and IPv6 in ``/etc/resolv.conf``.
|
|
|
|
For both security and performance reasons, it is recommended that a
|
|
caching nameserver such as BIND be run on the same machine as Charybdis
|
|
and that ``/etc/resolv.conf`` only list ``127.0.0.1``.
|