### Install UnrealIRCd on Windows

Source: https://github.com/fluffle/goirc/blob/master/doc/unreal32docs.html

Instructions for installing UnrealIRCd on Windows, which involves running the installer and then creating configuration files.

--------------------------------

### Create and Connect IRC Client in Go

Source: https://github.com/fluffle/goirc/blob/master/README.md

Demonstrates how to create a simple IRC client using GoIRC. It shows two methods: using `irc.SimpleClient` for basic setup and `irc.Client` with a custom configuration for more control, including SSL and custom nickname generation. The example also includes setting up event handlers for connection and disconnection, and initiating the connection to an IRC server.

```go
package main

import (
	"crypto/tls"
	"fmt"

	irc "github.com/fluffle/goirc/client"
)

func main() {
	// Creating a simple IRC client is simple.
	c := irc.SimpleClient("nick")

	// Or, create a config and fiddle with it first:
	cfg := irc.NewConfig("nick")
	cfg.SSL = true
	cfg.SSLConfig = &tls.Config{ServerName: "irc.freenode.net"}
	cfg.Server = "irc.freenode.net:7000"
	cfg.NewNick = func(n string) string { return n + "^" }
	c = irc.Client(cfg)

	// Add handlers to do things here!
	// e.g. join a channel on connect.
	c.HandleFunc(irc.CONNECTED,
		func(conn *irc.Conn, line *irc.Line) { conn.Join("#channel") })
	// And a signal on disconnect
	quit := make(chan bool)
	c.HandleFunc(irc.DISCONNECTED,
		func(conn *irc.Conn, line *irc.Line) { quit <- true })

	// Tell client to connect.
	if err := c.Connect(); err != nil {
		fmt.Printf("Connection error: %s\n", err.Error())
	}

	// With a "simple" client, set Server before calling Connect...
	c.Config().Server = "irc.freenode.net"

	// ... or, use ConnectTo instead.
	if err := c.ConnectTo("irc.freenode.net"); err != nil {
		fmt.Printf("Connection error: %s\n", err.Error())
	}

	// Wait for disconnect
	<-quit
}
```

--------------------------------

### Install UnrealIRCd on Linux

Source: https://github.com/fluffle/goirc/blob/master/doc/unreal32docs.html

Steps to install UnrealIRCd on a Linux system, including extracting the archive, configuring, and compiling the software. It also mentions the creation of configuration files.

```bash
gunzip -d Unreal3.2.X.tar.gz
tar xvf Unreal3.2.X.tar
cd Unreal3.2
./Config
make
```

--------------------------------

### IRC USER Command Example

Source: https://github.com/fluffle/goirc/blob/master/doc/rfc2812.txt

An example of the USER command in IRC, used for specifying username, hostname, and realname during initial connection. The example shows the parameters for registering a user.

```IRC Protocol
USER guest 0 * :Ronnie Reagan   ; User registering themselves with a
```

--------------------------------

### WHOIS Command Example

Source: https://github.com/fluffle/goirc/blob/master/doc/rfc2812.txt

Illustrates the WHOIS command for retrieving user information. It shows how to get general information about a nickname and how to query a specific server for user details.

```IRC Protocol
WHOIS wiz                       ; return available user information
                                   about nick WiZ

   WHOIS eff.org trillian          ; ask server eff.org for user
                                   information  about trillian
```

--------------------------------

### IP ban example

Source: https://github.com/fluffle/goirc/blob/master/doc/unreal32docs.html

This demonstrates an IP ban using a wildcard. The ban `*!*@128.*` will prevent any user whose IP address starts with '128.' from joining the channel.

```irc
*!*@128.*
```

--------------------------------

### IRC LIST command examples

Source: https://github.com/fluffle/goirc/blob/master/doc/rfc2812.txt

Shows examples of the LIST command in IRC, used to display a list of all channels and their topics, or the status of specific channels if provided.

```IRC
LIST                            ; Command to list all channels.

   LIST #twilight_zone,#42         ; Command to list channels
                                   #twilight_zone and #42
```

--------------------------------

### UnrealIRCd Link Configuration Example

Source: https://github.com/fluffle/goirc/blob/master/doc/unreal32docs.html

An example of a 'link' block in UnrealIRCd configuration, specifying connection details for a remote server, including username, hostname, IP binding, port, and authentication passwords. It also includes options for autoconnect, SSL, and zip compression.

```UnrealIRCd Config
link hub.mynet.com {
	username *;
	hostname 1.2.3.4;
	bind-ip *;
	port 7029;
	hub *;
	password-connect "LiNk";
	password-receive "LiNk";
	class servers;
	options {
		autoconnect;
		ssl;
		zip;
	};
};
```

--------------------------------

### IRC NAMES command examples

Source: https://github.com/fluffle/goirc/blob/master/doc/rfc2812.txt

Provides examples of the NAMES command in IRC, used to list visible users on specified channels or all visible channels and their occupants if no channel is specified.

```IRC
NAMES #twilight_zone,#42        ; Command to list visible users on
                                   #twilight_zone and #42

   NAMES                           ; Command to list all visible
                                   channels and users
```

--------------------------------

### IRC PASS Command Example

Source: https://github.com/fluffle/goirc/blob/master/doc/rfc2812.txt

An example of the PASS command used in IRC for setting a connection password. This command must precede the NICK/USER combination for client registration.

```IRC Protocol
PASS secretpasswordhere
```

--------------------------------

### Upgrade UnrealIRCd on Windows

Source: https://github.com/fluffle/goirc/blob/master/doc/unreal32docs.html

Steps for upgrading UnrealIRCd on Windows, including backing up configuration files, uninstalling the old version, installing the new version, and restoring configuration files.

--------------------------------

### Spamfilter Example: Gline with Time and Reason

Source: https://github.com/fluffle/goirc/blob/master/doc/unreal32docs.html

An example of adding a spamfilter that applies a gline for a specified duration with a custom reason when a specific phrase is detected in private messages.

```irc-commands
/spamfilter add p gline 3h Please\_go\_to\_www.viruscan.xx/nicepage/virus=blah Come watch me on my webcam
```

--------------------------------

### Configure Oper Block with Specific Settings

Source: https://github.com/fluffle/goirc/blob/master/doc/unreal32docs.html

This example configures an 'oper' block with a specific class, multiple userhost matches, a password, and a set of oper flags including network administration and various kill/notice permissions.

```ircd-config
oper bobsmith {
	class clients;
	from {
		userhost bob@smithco.com;
		userhost boblaptop@somedialupisp.com;
	};
	password "f00";
	flags {
		netadmin;
		can_gkline;
		can_gzline;
		can_zline;
		can_restart;
		can_die;
		global;
	};
	swhois "Example of a whois mask";
	snomask frebWqFv;
};
```

--------------------------------

### IRC INVITE command example

Source: https://github.com/fluffle/goirc/blob/master/doc/rfc2812.txt

Demonstrates the INVITE command in IRC, used to invite a specific user to a channel. It outlines the parameters required for the command.

```IRC
INVITE <nickname> <channel>

   The INVITE command is used to invite a user to a channel.  The
   parameter <nickname> is the nickname of the person to be invited to
   the target channel <channel>.  There is no requirement that the
   channel the target user is being invited to must exist or be a valid
   channel.  However, if the channel exists, only members of the channel
   are allowed to invite other users.  When the channel has invite-only
   flag set, only channel operators may issue INVITE command.
```

--------------------------------

### IRC TOPIC command examples

Source: https://github.com/fluffle/goirc/blob/master/doc/rfc2812.txt

Illustrates how to use the TOPIC command in IRC to set, clear, or retrieve the topic of a channel. It shows examples of setting a new topic, clearing the topic, and checking the current topic.

```IRC
:WiZ!jto@tolsun.oulu.fi TOPIC #test :New topic ; User Wiz setting the
                                   topic.

   TOPIC #test :another topic      ; Command to set the topic on #test
                                   to "another topic".

   TOPIC #test :                   ; Command to clear the topic on
                                   #test.

   TOPIC #test                     ; Command to check the topic for
                                   #test.
```

--------------------------------

### IRC QUIT Command Example

Source: https://github.com/fluffle/goirc/blob/master/doc/rfc2812.txt

Demonstrates the QUIT command used to terminate a client session on an IRC server. It includes the command syntax and an example of a quit message.

```irc
QUIT :Gone to have lunch
```

--------------------------------

### IRC MODE Command Examples

Source: https://github.com/fluffle/goirc/blob/master/doc/rfc2812.txt

Provides examples of the MODE command for managing channel characteristics, such as setting moderation, invite-only status, granting operator privileges, banning users, and setting channel limits.

```irc
MODE #Finnish +imI *!*@*.fi
MODE #Finnish +o Kilroy
MODE #Finnish +v Wiz
MODE #Fins -s
MODE #42 +k oulu
MODE #42 -k oulu
MODE #eu-opers +l 10
:WiZ!jto@tolsun.oulu.fi MODE #eu-opers -l
MODE &oulu +b
MODE &oulu +b *!*@*
MODE &oulu +b *!*@*.edu +e *!*@*.bu.edu
```

--------------------------------

### UnrealIRCd Channel Mode +f Example

Source: https://github.com/fluffle/goirc/blob/master/doc/unreal32docs.html

This example demonstrates the usage of the UnrealIRCd channel mode +f for flood protection. It shows how to set limits for joins, messages, and nickchanges within a specific time frame, and the resulting channel modes (+i, +m, +N) applied when limits are exceeded.

```IRC Log
*** ChanOp sets mode: +f [10j]:15
*** Evil1 (~fdsdsfddf@Clk-17B4D84B.blah.net) has joined #test
*** Evil2 (~jcvibhcih@Clk-3472A942.xx.someispcom) has joined #test
*** Evil3 (~toijhlihs@Clk-38D374A3.aol.com) has joined #test
*** Evil4 (~eihjifihi@Clk-5387B42F.dfdfd.blablalba.be) has joined #test
-- snip XX lines --
*** Evil21 (~jiovoihew@Clk-48D826C3.e.something.org) has joined #test
-server1.test.net:#test *** Channel joinflood detected (limit is 20 per 15 seconds), putting +i
*** server1.test.net sets mode: +i
<Evil2> fsdjfdshfdkjfdkjfdsgdskjgsdjgsdsdfsfdujsflkhsfdl
<Evil12> fsdjfdshfdkjfdkjfdsgdskjgsdjgsdsdfsfdujsflkhsfdl
<Evil15> fsdjfdshfdkjfdkjfdsgdskjgsdjgsdsdfsfdujsflkhsfdl
<Evil10> fsdjfdshfdkjfdkjfdsgdskjgsdjgsdsdfsfdujsflkhsfdl
<Evil8> fsdjfdshfdkjfdkjfdsgdskjgsdjgsdsdfsfdujsflkhsfdl
-- snip XX lines --
-server1.test.net:#test *** Channel msg/noticeflood detected (limit is 50 per 15 seconds), putting +m
*** server1.test.net sets mode: +m
*** Evil1 is now known as Hmmm1
*** Evil2 is now known as Hmmm2
*** Evil3 is now known as Hmmm3
*** Evil4 is now known as Hmmm4
*** Evil5 is now known as Hmmm5
*** Evil6 is now known as Hmmm6
*** Evil7 is now known as Hmmm7
*** Evil8 is now known as Hmmm8
-server1.test.net:#test *** Channel nickflood detected (limit is 7 per 15 seconds), putting +N
*** server1.test.net sets mode: +N
```

--------------------------------

### Spamfilter Example: Gline on Channel/Private Message

Source: https://github.com/fluffle/goirc/blob/master/doc/unreal32docs.html

An example of adding a spamfilter that applies a gline to users whose messages match a specific phrase in either channel or private messages.

```irc-commands
/spamfilter add pc gline - - Come watch me on my webcam
```

--------------------------------

### IRC JOIN Command Examples

Source: https://github.com/fluffle/goirc/blob/master/doc/rfc2812.txt

Demonstrates various ways to use the JOIN command to connect to IRC channels, including joining multiple channels, using channel keys, and leaving all channels.

```irc
JOIN #foo,&bar fubar
JOIN #foo,#bar fubar,foobar
JOIN #foo,#bar
JOIN 0
:WiZ!jto@tolsun.oulu.fi JOIN #Twilight_zone
```

--------------------------------

### IRC INVITE Command Example

Source: https://github.com/fluffle/goirc/blob/master/doc/rfc2812.txt

Demonstrates the usage of the INVITE command in IRC to invite a user to a channel. It shows both the server-to-client message format and the client command format.

```IRC Protocol
:Angel!wings@irc.org INVITE Wiz #Dust

; Message to WiZ when he has been
invited by user Angel to channel
#Dust

INVITE Wiz #Twilight_Zone

; Command to invite WiZ to
#Twilight_zone
```

--------------------------------

### WHOWAS Command Example

Source: https://github.com/fluffle/goirc/blob/master/doc/rfc2812.txt

Provides examples for the WHOWAS command, used to query historical nickname information. It demonstrates fetching all history for a nickname, a limited number of recent entries, and history from a specific server.

```IRC Protocol
WHOWAS Wiz                      ; return all information in the nick
                                   history about nick "WiZ";

   WHOWAS Mermaid 9                ; return at most, the 9 most recent
                                   entries in the nick history for
                                   "Mermaid";

   WHOWAS Trillian 1 *.edu         ; return the most recent history for
                                   "Trillian" from the first server
                                   found to match "*.edu".
```

--------------------------------

### IRC PART Command Examples

Source: https://github.com/fluffle/goirc/blob/master/doc/rfc2812.txt

Illustrates the usage of the PART command to leave IRC channels, with examples showing how to leave single or multiple channels and include a custom part message.

```irc
PART #twilight_zone
PART #oz-ops,&group5
:WiZ!jto@tolsun.oulu.fi PART #playzone :I lost
```

--------------------------------

### Spamfilter Example: Block with Regex

Source: https://github.com/fluffle/goirc/blob/master/doc/unreal32docs.html

An example of adding a spamfilter that blocks messages matching a regular expression, such as a URL pattern.

```irc-commands
/spamfilter add pc block - - come to irc\..+\..+
```

--------------------------------

### IRC NICK Command Examples

Source: https://github.com/fluffle/goirc/blob/master/doc/rfc2812.txt

Examples demonstrating the NICK command in IRC, used for setting or changing a user's nickname. It shows both introducing a new nickname and a server message indicating a nickname change.

```IRC Protocol
NICK Wiz                ; Introducing new nick "Wiz" if session is
                           still unregistered, or user changing his
                           nickname to "Wiz"
```

```IRC Protocol
:WiZ!jto@tolsun.oulu.fi NICK Kilroy
                           ; Server telling that WiZ changed his
                           nickname to Kilroy.
```

--------------------------------

### IRC SQUIT Command Example

Source: https://github.com/fluffle/goirc/blob/master/doc/rfc2812.txt

Illustrates the SQUIT command, used by operators to disconnect server links. It shows the command syntax and examples of its usage for terminating server connections.

```irc
SQUIT tolsun.oulu.fi :Bad Link ?
```

```irc
:Trillian SQUIT cm22.eng.umd.edu :Server out of control
```

--------------------------------

### WHO Command Example

Source: https://github.com/fluffle/goirc/blob/master/doc/rfc2812.txt

Demonstrates the usage of the WHO command in IRC to query users matching a specific pattern. It shows how to list all users matching '*.fi' and how to list operators matching 'jto*'.

```IRC Protocol
WHO *.fi                        ; Command to list all users who match
                                   against "*.fi".

   WHO jto* o                      ; Command to list all users with a
                                   match against "jto*" if they are an
                                   operator.
```

--------------------------------

### IRC JOIN Command Example

Source: https://github.com/fluffle/goirc/blob/master/doc/rfc2812.txt

Shows how to use the JOIN command to request listening to a specific channel on an IRC server. It includes syntax for joining a channel with and without a key, and a special command to leave all channels.

```irc
JOIN #foobar
```

```irc
JOIN &foo fubar
```

--------------------------------

### IRC PRIVMSG Command Example

Source: https://github.com/fluffle/goirc/blob/master/doc/rfc2812.txt

Provides examples of the PRIVMSG command for sending private messages between IRC users and to channels. It showcases various addressing methods, including direct nicknames, hostmasks, and server-specific targets.

```IRC Protocol
:Angel!wings@irc.org PRIVMSG Wiz :Are you receiving this message ? 

; Message from Angel to Wiz.

PRIVMSG Angel :yes I'm receiving it !

; Command to send a message to Angel.

PRIVMSG jto@tolsun.oulu.fi :Hello !

; Command to send a message to a user
on server tolsun.oulu.fi with
username of "jto".

PRIVMSG kalt%millennium.stealth.net@irc.stealth.net :Are you a frog?

; Message to a user on server
irc.stealth.net with username of
"kalt", and connected from the host
millennium.stealth.net.
```

--------------------------------

### IRC KICK Command Example

Source: https://github.com/fluffle/goirc/blob/master/doc/rfc2812.txt

Illustrates the KICK command used to remove a user from an IRC channel. Examples cover basic kicks and kicks with a reason (comment), showing both client command and server-generated message formats.

```IRC Protocol
KICK &Melbourne Matthew

; Command to kick Matthew from
&Melbourne

KICK #Finnish John :Speaking English

; Command to kick John from #Finnish
using "Speaking English" as the
reason (comment).

:WiZ!jto@tolsun.oulu.fi KICK #Finnish John

; KICK message on channel #Finnish
from WiZ to remove John from channel
```

--------------------------------

### IRC MODE command examples

Source: https://github.com/fluffle/goirc/blob/master/doc/rfc2812.txt

Demonstrates the usage of the MODE command in IRC for setting channel bans and exceptions, listing exception masks, and identifying channel creators.

```IRC
MODE #bu +be *!*@*.edu *!*@*.bu.edu
   ; Comment to prevent any user from a
   ; hostname matching *.edu from joining,
   ; except if matching *.bu.edu

   MODE #meditation e              ; Command to list exception masks set
                                   for the channel "#meditation".

   MODE #meditation I              ; Command to list invitations masks
                                   set for the channel "#meditation".

   MODE !12345ircd O               ; Command to ask who the channel
                                   creator for "!12345ircd" is
```

--------------------------------

### Configure stunnel for SSL IRC

Source: https://github.com/fluffle/goirc/blob/master/doc/unreal32docs.html

This configuration example for stunnel (version 4.x) sets up a client to forward traffic to an IRC server's SSL port. It listens on a local address and port, encrypts the traffic, and connects to the specified IRC server and SSL port.

```INI
client = yes
[irc]
accept = 127.0.0.1:6667
connect = irc.myserv.com:6697
```

--------------------------------

### IRC SUMMON Command Example

Source: https://github.com/fluffle/goirc/blob/master/doc/rfc2812.txt

Used to invite users on a host running an IRC server to join IRC. It can take a user parameter and optionally a target and channel.

```IRC
SUMMON <user> [ <target> [ <channel> ] ]
```

--------------------------------

### IRC PRIVMSG Command Examples

Source: https://github.com/fluffle/goirc/blob/master/doc/rfc2812.txt

Demonstrates the PRIVMSG command usage in IRC for sending messages to users on the same server, specific users with host information, servers matching a wildcard, and all users from a specific domain.

```irc
PRIVMSG kalt%millennium.stealth.net :Do you like cheese?
                                   ; Message to a user on the local
                                   server with username of "kalt", and
                                   connected from the host
                                   millennium.stealth.net.

   PRIVMSG Wiz!jto@tolsun.oulu.fi :Hello !
                                   ; Message to the user with nickname
                                   Wiz who is connected from the host
                                   tolsun.oulu.fi and has the username
                                   "jto".

   PRIVMSG $*.fi :Server tolsun.oulu.fi rebooting.
                                   ; Message to everyone on a server
                                   which has a name matching *.fi.

   PRIVMSG #*.edu :NSFNet is undergoing work, expect interruptions
                                   ; Message to all users who come from
                                   a host which has a name matching
                                   *.edu.
```

--------------------------------

### Local Spamfilter Configuration Block

Source: https://github.com/fluffle/goirc/blob/master/doc/unreal32docs.html

An example of how to define a local spamfilter within the UnrealIRCd configuration file using a 'spamfilter' block.

```unrealircd-conf
spamfilter {
	regex "//write \$decode\(.+\|.+load -rs";
	target { private; channel; };
	reason "Generic $decode exploit";
	action block;
};
```

--------------------------------

### IRC MOTD Command Example

Source: https://github.com/fluffle/goirc/blob/master/doc/rfc2812.txt

Shows how to use the MOTD command to retrieve the 'Message Of The Day' from a specified server or the current server if no target is provided. Wildcards are supported in the target parameter.

```irc
Command: MOTD
   Parameters: [ <target> ]

   The MOTD command is used to get the "Message Of The Day" of the given
   server, or current server if <target> is omitted.

   Wildcards are allowed in the <target> parameter.

   Numeric Replies:
           RPL_MOTDSTART                   RPL_MOTD
           RPL_ENDOFMOTD                   ERR_NOMOTD
```

--------------------------------

### IRC VERSION Command Example

Source: https://github.com/fluffle/goirc/blob/master/doc/rfc2812.txt

Illustrates the VERSION command for querying the version of an IRC server. It can be used to check the local server's version or a remote server's version by specifying a target.

```irc
Command: VERSION
   Parameters: [ <target> ]

   The VERSION command is used to query the version of the server
   program.  An optional parameter <target> is used to query the version
   of the server program which a client is not directly connected to.

   Wildcards are allowed in the <target> parameter.

   Numeric Replies:

           ERR_NOSUCHSERVER                RPL_VERSION

   Examples:

   VERSION tolsun.oulu.fi          ; Command to check the version of
                                   server "tolsun.oulu.fi".
```

--------------------------------

### Configure SSL Session Renegotiation by Bytes

Source: https://github.com/fluffle/goirc/blob/master/doc/unreal32docs.html

Sets the number of bytes after which an SSL session should be renegotiated. For example, '20m' for 20 megabytes.

```go
set::ssl::renegotiate-bytes <value>;
```

--------------------------------

### Regex: Character Class Assertions

Source: https://github.com/fluffle/goirc/blob/master/doc/unreal32docs.html

Provides examples of common character class assertions for digits, whitespace, and word characters, including their negated forms.

```regex
\b
```

```regex
\B
```

```regex
\d
```

```regex
\D
```

```regex
\s
```

```regex
\S
```

```regex
\w
```

```regex
\W
```

--------------------------------

### Extended ban: Quiet (~q)

Source: https://github.com/fluffle/goirc/blob/master/doc/unreal32docs.html

This example uses the extended ban type '~q' to quiet users. Users matching `~q:*!*@blah.blah.com` can join the channel but cannot speak unless they have voice (+v) or higher privileges.

```irc
~q:*!*@blah.blah.com
```

--------------------------------

### IRC RESTART Command Example

Source: https://github.com/fluffle/goirc/blob/master/doc/rfc2812.txt

An optional administrative command used by an operator to restart the server. It must be processed by the connected server and not passed to other servers. It does not require any parameters.

```IRC
RESTART
```

--------------------------------

### UnrealIRCd Help Block Configuration

Source: https://github.com/fluffle/goirc/blob/master/doc/unreal32docs.html

Allows the creation of custom help entries for the /helpop command in UnrealIRCd. The 'help' directive specifies the parameter for /helpop, and subsequent lines define the text displayed to the user.

```UnrealIRCd Config
help <name> {
	<text-line>;
	<text-line>;
	...;
};
```

--------------------------------

### Configure +f mode for join floods with auto-unset

Source: https://github.com/fluffle/goirc/blob/master/doc/unreal32docs.html

This example shows how to set the +f mode to protect against join floods. It specifies that if more than 20 joins occur within 15 seconds, the channel will be set to +i (invite-only) for 10 minutes.

```irc
+f [20j#i10]:15
```

--------------------------------

### Configure Server Options

Source: https://github.com/fluffle/goirc/blob/master/doc/unreal32docs.html

Sets various server options, including email addresses for kline/gline requests, default modes on connection and oper, and host definitions for local and global operators.

```unrealircd
set {
	kline-address my@emailaddress.com;
	auto-join #welcome;
	options {
		hide-ulines;
	};
	hosts {
		local LocalOp.MyNet.com;
		global globalop.mynet.com;
	};
};

set {
	options { hide-ulines; no-stealth; };
};
```

--------------------------------

### Configure +f mode for nick change floods with auto-unset

Source: https://github.com/fluffle/goirc/blob/master/doc/unreal32docs.html

This example demonstrates configuring the +f mode to protect against nick change floods. It sets the channel to +N (no nick changes) for 15 minutes if more than 10 nick changes occur within 15 seconds.

```irc
+f [10n#N15]:15
```

--------------------------------

### Configure +f mode for message floods with auto-unset

Source: https://github.com/fluffle/goirc/blob/master/doc/unreal32docs.html

This example demonstrates configuring the +f mode to protect against message floods. It sets the channel to +m (moderated) for 10 minutes if more than 50 messages are sent within 15 seconds.

```irc
+f [50m#m10]:15
```

--------------------------------

### Include Configuration Files

Source: https://github.com/fluffle/goirc/blob/master/doc/unreal32docs.html

The include directive allows loading external configuration files. It supports wildcards for loading multiple files and can be used to organize settings like network configurations or service aliases.

```UnrealIRCd Config
include <file-name>;
```

```UnrealIRCd Config
include mynetwork.network;
```

```UnrealIRCd Config
include aliases/ircservices.conf
```

--------------------------------

### Ban on cloaked IP with partial match

Source: https://github.com/fluffle/goirc/blob/master/doc/unreal32docs.html

This example shows how to ban a user based on their cloaked IP address. Banning `*!*@*.8FC6128B.303AEBC6.IP` will ban all users whose cloaked IP ends with `.8FC6128B.303AEBC6.IP`, effectively targeting a range of IP addresses.

```irc
*!*@*.8FC6128B.303AEBC6.IP
```

--------------------------------

### Get DNS Cache Information

Source: https://github.com/fluffle/goirc/blob/master/doc/unreal32docs.html

The DNS command provides information about the IRC server's DNS cache. Users may need to use the '/raw DNS' command if their client has a built-in DNS command. Opers can use '/raw DNS l' to list cache entries.

```irc
dns <option>
/raw DNS
/raw DNS l
```

--------------------------------

### Extended ban: Channel (~c) with prefix and higher privilege

Source: https://github.com/fluffle/goirc/blob/master/doc/unreal32docs.html

This example uses the extended ban type '~c' with a prefix '@' to restrict users based on their privilege level in another channel. The ban `+e ~c:@#trusted` prevents users who are in the #trusted channel with at least halfop status ('@') from joining the current channel.

```irc
+e ~c:@#trusted
```

--------------------------------

### Upgrade UnrealIRCd on Linux

Source: https://github.com/fluffle/goirc/blob/master/doc/unreal32docs.html

Instructions for upgrading UnrealIRCd on Linux by renaming the old directory, extracting the new version, configuring, compiling, and copying configuration files.

--------------------------------

### Configure Basic Listen Directives

Source: https://github.com/fluffle/goirc/blob/master/doc/unreal32docs.html

This snippet demonstrates basic listen directives for an IRC server, covering different port specifications and IP address ranges.

```ircd-config
listen *:8067;
```

```ircd-config
listen 213.12.31.126:6667;
```

```ircd-config
listen *:6660-6669;
```

--------------------------------

### Get All Server Time Reports

Source: https://github.com/fluffle/goirc/blob/master/doc/unreal32docs.html

Retrieves time reports for all servers connected to the IRC network.

```IRC
tsctl alltime
```

--------------------------------

### Configure SSL Private Key File

Source: https://github.com/fluffle/goirc/blob/master/doc/unreal32docs.html

Specifies the file path for the server's SSL private key.

```go
set::ssl::key <filename>;
```

--------------------------------

### UnrealIRCd Configuration File Syntax

Source: https://github.com/fluffle/goirc/blob/master/doc/unreal32docs.html

Explains the block-based format of the UnrealIRCd configuration file. Each block consists of a name, optional value, and directives with values, enclosed in curly braces. Comments are supported using '#', '//', and '/* */'.

```UnrealIRCd Configuration
<block-name> <block-value> {
	<block-directive> <directive-value>;
};

# One line comment
// One line comment
/* Multi line
   comment */
```

--------------------------------

### Get IRC Server Time Report

Source: https://github.com/fluffle/goirc/blob/master/doc/unreal32docs.html

Retrieves a time report for the current IRC server.

```IRC
tsctl time
```

--------------------------------

### Get User IP Address

Source: https://github.com/fluffle/goirc/blob/master/doc/unreal32docs.html

The USERIP command returns the IP address associated with a specified nickname.

```irc
userip <nick>
```

--------------------------------

### Helpop Command Usage

Source: https://github.com/fluffle/goirc/blob/master/doc/unreal32docs.html

The /helpop command provides access to UnrealIRCd's built-in help system. For ircops, keywords need to be prefixed with a '?'.

```IRC Commands
/helpop chmodes
```

```IRC Commands
/helpop ?chmodes
```

--------------------------------

### goirc Show Connect Info Option

Source: https://github.com/fluffle/goirc/blob/master/doc/unreal32docs.html

If enabled, notices detailing connection events such as 'ident request' and 'hostname lookup' will be displayed when a user connects to the server.

```goirc
set::options::show-connect-info;
```

--------------------------------

### Enable/Disable Time Synchronization

Source: https://github.com/fluffle/goirc/blob/master/doc/unreal32docs.html

Enables or disables the time synchronization feature when the IRCd starts. The default setting is 'yes'.

```unrealircd
set::timesynch::enabled <yes|no>
```

--------------------------------

### Configure SSL Session Renegotiation by Timeout

Source: https://github.com/fluffle/goirc/blob/master/doc/unreal32docs.html

Sets the time duration after which an SSL session should be renegotiated. For example, '1h' for 1 hour.

```go
set::ssl::renegotiate-timeout <timevalue>;
```

--------------------------------

### Basic ban with nick, user, and host

Source: https://github.com/fluffle/goirc/blob/master/doc/unreal32docs.html

This demonstrates a basic ban in UnrealIRCd, using the format _+b nick!user@host_. This ban will prevent the specified user from joining the channel.

```irc
+b nick!user@host
```

--------------------------------

### Configure SSL Certificate File

Source: https://github.com/fluffle/goirc/blob/master/doc/unreal32docs.html

Specifies the file path for the server's SSL certificate.

```go
set::ssl::certificate <filename>;
```

--------------------------------

### Regex Dot Operator in UnrealIRCd

Source: https://github.com/fluffle/goirc/blob/master/doc/unreal32docs.html

Demonstrates the use of the dot (.) operator in UnrealIRCd's regex, which matches any single character. Examples show how it functions within a pattern.

```Regex
a.c
```

--------------------------------

### Configure Listen Directive with Options

Source: https://github.com/fluffle/goirc/blob/master/doc/unreal32docs.html

This snippet shows how to configure a listen directive for an IRC server, specifying options like SSL encryption and client-only access for a particular port.

```ircd-config
listen *:6601 {
	options {
		ssl;
		clientsonly;
	};
};
```