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DareNET IRCd Configuration

(→Clients)
(→Clients)
Line 137: Line 137:
<code>host = "*@jolan.ppro";</code>
<code>host = "*@jolan.ppro";</code>
 +
 +
Example blocks:
 +
 +
Prevent unresolved clients from connecting:
 +
<source lang="perl">Client
 +
{
 +
  host = "*@*";
 +
  class = "Users";
 +
  maxlinks = 5;
 +
};</source>
 +
 +
Only accept two connections from dial up accounts that have "dial??.*" as host mask:
 +
<source lang="perl">Client
 +
{
 +
  host = "*@dial??.*";
 +
  class = "Users";
 +
  maxlinks = 2;
 +
};</source>
 +
 +
Allow anyone to connect:
 +
<source lang="perl">Client
 +
{
 +
  host = "*@*";
 +
  ip = "*@*";
 +
  class = "Other";
 +
  maxlinks = 2;
 +
};</source>

Revision as of 02:55, 4 May 2009

General

Old M:line

The General {} block defines some information about the server itself. 

General 
{
  name = "servername";
  vhost = "ipv4vhost";
  description = "description";
  numeric = numericnumber;
};

<virtual host> must contain either a * or a valid IPv4 address in dotted quad notation (e.g. 127.0.0.1). The address MUST be the address of a physical interface on the host. This address is used for outgoing connections only; see Port {} blocks for listener virtual hosting. If in doubt what to put here, use the IP of your primary interface here.

Note that <server numeric> must be unique on the network the server is running, and may be between 0 and 4095. It is not updated on a rehash. If linking to DareNET, you should use the numeric assigned to you by the Server Management team.

Example block:

<source lang="perl">General { 

 name = "servername.area.zone.darenet.org";
 description = "DareNET Client Server";
 vhost = "127.0.0.1";
 numeric = 10;

};</source>

Admin

Old A:line

The Admin {} block defines information that can be retrieved with the /ADMIN command. 

Admin 
{
  Location = "string 1 here";
  Location = "string 2 here";
  Contact = "string 3 here";
};

Example block:

<source lang="perl">Admin { 

 Location = "DareNET";
 Location = "Server Management Team";
 Contact = "<routing@darenet.org>";

};</source>

Classes

Old Y:lines

All connections to the server are associated with a "connection class", whether they be incoming or outgoing (initiated by the server), be they clients or servers. 

Class
{
  name = "<class>";
  pingfreq = time;
  connectfreq = time;
  maxlinks = number;
  sendq = size;
  usermode = "+modes";
};

For connection classes used on server links, maxlinks should be set to either 0 (for hubs) or 1 (for leafs). Client connection classes may use maxlinks between 0 and approximately 4,000,000,000. A maxlinks of 0 means there is no limit on the number of connections using the class.

<connect freq> applies only to servers, and specifies the frequency that the server tries to auto connect. Setting this to 0 will cause the server to attempt to connect repeatedly with no delay until the <maximum links> condition is satisfied. This is a Bad Thing(tm). Time can be specified as a number, or by giving something like: 1 minutes 2 seconds, or 1*60+20.

For connection classes intended for operator use, you can specify privileges used when the Operator {} block (see below) names this class. The local (aka globally_opered) privilege MUST be defined by either the Class or Operator block. It is highly recommended privileges be specified in the operator's Operator {} block, instead of in Class {} blocks.

Example blocks:

Uplinks you are not a hub for: <source lang="perl">Class { 

 name = "Server"
 pingfreq = 1 minutes 30 seconds;
 connectfreq = 5 minutes;
 maxlinks = 1;
 sendq = 9000000;

};</source> Leaf servers you hub for: <source lang="perl">Class { 

 name = "Leaf Server"
 pingfreq = 1 minutes 30 seconds;
 connectfreq = 5 minutes;
 maxlinks = 0;
 sendq = 9000000;

};</source> All clients: <source lang="perl">Class { 

 name = "Users"
 pingfreq = 1 minutes 30 seconds;
 sendq = 60000;
 usermode = "+iw";

};</source> Opers: <source lang="perl">Class { 

 name = "Opers"
 pingfreq = 1 minutes 30 seconds;
 sendq = 60000;
 whox = yes;

};</source>

Clients

Old I:lines

To allow clients to connect, they need authorization. This can be done based on hostmask, address mask and/or with a password. With intelligent use of classes and the maxlinks field in the Client {} blocks, you can let in a specific domain, but get rid of all other domains in the same top level, this setting up some sort of "reverse Kill {} block." 

Client 
{
  host = "host";
  ip = "127.0.0.0/8";
  password = "password";
  class = "classname";
  maxlinks = number;
};

Everything in a Client {} block is optional. If a username mask is specified, it must match the clients username from the IDENT protocol. If a hostmask is given, the client's hostname must resolve and match the hostmask. If a CIDR-style IP mask is given, the client must have an IP matching that range. If maxlinks is given, it limits the number of matching clients allowed from a particular IP address.

Technical Description:

For every connectiong client, the IP address is known. A reverse lookup is performed on this IP-number to get the (/all) hostname(s). Each hostname that belongs to this IP-number is matched to <hostmask>, and the Client {} block is used when any matches; the client will then show with this particular hostname. If none of the hostnames match, then the IP-number is matched against the <IP mask ...> field, and if this matches, the Client {} block is used nevertheless and the client will show with the first (main) hostname, if any. If the IP-number does not resolve, then the client will show with the dot notation of the IP-number.

There is a special case for UNIX domain sockets and localhost connections. In these cases, the <IP mask...> field is compared with the name of the server (thus not with any IP-number representation). The name of the server is the one returned in the numeric 002 reply. For example:

002 Your host is 2.darenet.org[jolan.ppro], running version ...

In this example, "jolan.ppro" is the name used for matching. Therefore, UNIX domain sockets, and connections to localhost, would match this block:

host = "*@jolan.ppro";

Example blocks:

Prevent unresolved clients from connecting: <source lang="perl">Client { 

 host = "*@*";
 class = "Users";
 maxlinks = 5;

};</source>

Only accept two connections from dial up accounts that have "dial??.*" as host mask: <source lang="perl">Client { 

 host = "*@dial??.*";
 class = "Users";
 maxlinks = 2;

};</source>

Allow anyone to connect: <source lang="perl">Client { 

 host = "*@*";
 ip = "*@*";
 class = "Other";
 maxlinks = 2;

};</source>

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