This list is incomplete; you can help by expanding it.

The following tables compare general and technical information including the differences in feature sets between popular IRC daemons. Grey entries in the list represent supposedly unmaintained daemons.

Please see the individual products' articles or websites or the cited references for further information. This article is neither all-inclusive nor necessarily up-to-date.

Contents 1 Servers 2 Operating system support 3 Technology 4 Features 5 Notes 6 See also 7 External links

[edit] Servers

-

IRC daemon	Creator/network	Basis	Programming language	First public release	Latest version (numeric 351)	Software license	Website
Asuka[1]	QuakeNet Dev Team	ircu	C	?	1.2.1 (now replaced by snircd)	GPL	?
Austhex	AustNet Development	ircu2.9	C, Scheme	?	? (now replaced by inspircd)	GPL	?
Bahamut[2]	DALnet	DreamForge, IRCD-Hybrid	C	1999[3]	bahamut-1.8.6	GPL	[1]
bIRCd[4]	DAMnet	DreamForge	C	1999	bIRCd-2.1.0rc4	GPL	[2]
beware ircd[5]	beware	(from scratch)	Delphi	2002?	? (now unmaintained)	GPL	[3]
Charybdis[6]	nenolod, jilles, dwr, gxti	ircd-ratbox, IRCD-Hybrid, ircu, ShadowIRCd	C	2005	charybdis-3.1.0	GPL/BSD	?
ConferenceRoom	WebMaster Incorporated	(from scratch)	C++	1996	ConferenceRoom/3.5	Proprietary	[4]
csircd	Comstud	(from scratch)	C	1998	csircd-1.14	GPL	?
dancer-ircd	freenode	Hybrid 6	C	1999	? (replaced by hyperion)	GPL	?
DreamForge	DALnet	irc2.8.mu3	C	1994 (dal), 1997? (df)	? (replaced by bahamut)	GPL	?
Faerion IRC Server[7]	vhex	DreamForge	C, C++	2003	1.17.7.1[8]	GPL	[5]
hyperion[9]	freenode	dancer-ircd 1.0.35+pre2	C	2005	? (to be replaced by ircd-seven)	GPL	[6]
InspIRCd [10]	InspIRCd Development Team	(from scratch)	C++	2002	1.2.1[11]	GPL	[7]
ignitionServer[12]	The Ignition Project	Pure-IRCD (VB6 version)	Visual Basic	2004	ignitionServer-0.3.6-P1[13]	GPL[14]	[8]
IRCd[15]	Jarkko Oikarinen, IRCnet[16]	(from scratch)	C[17]	1988	2.95	GPL	[9]
IRCD-Hybrid	Hybrid Development Team, EFnet	irc2.8	C	1997	7.2.3	GPL	?
ircd-ratbox	Aaron Sethman, Lee Hardy, EFnet	Hybrid 7-rc1	C	2002	ircd-ratbox-3.0.0	GPL	[10]
ircd-seven	freenode	charybdis 3.1.x/trunk	C	—	in development	GPL	?
ircu[18]	Undernet Coder Committee	irc2.7[19]	C[20]	1991	u2.10.12.12	GPL	?
IRCXpro Server	IRCXpro, Paul Heinlein	IRCPlus	Visual Basic	2002	1.2 (build 1572) (now replaced by OfficeIRC)	Proprietary	?
ithildin[21]	Chip Norkus	(from scratch)	C	2006	1.1[22]	BSD[23]	[11]
Nefarious IRCu	Evilnet Development, AfterNET	ircu2	C	2004	u2.10.11.07+Nefarious(1.2.0)+[2212 2008-08-03]	GPL	[12]
ngIRCd[24]	Alex Barton	(from scratch)	C	2001[citation needed]	ngircd-14.1[25]	GPL	[13]
OfficeIRC Server	Office IRC Inc, Paul Heinlein	(from scratch)	VB.net	2006	2.2	Proprietary	[14]
pircd	Jay F Kominek	(from scratch)	Perl	1999	? (now unmaintained)	Open Source (custom)	[15]
PleXusIRCd	Rizon, thaprince, static	Hybrid 7.2.3	C	2005	hybrid-7.2.3+plexus-3.0.1(20081028_0-520)	GPL	[16]
pureIRCd	Dennis Fisch aka Diligent	(from scratch)	C	2002	?	GPL	?
PTlink IRC server	PTlink IRC Software	Hybrid 6	C	2001 (v.6)	5.4.0 (now unmaintained)	GPL	[17]
QuakeIRCd	QuakeIRCd Team, Tiburon, blackcomb	UnrealIRCd	C	2003 (v1.1)	? (now unmaintained)	GPL	[18]
RockIRCd[26]	Mike Chambers	(from scratch)	QuickBASIC[27]	2009	1.0.0-testing	GPL	[19]
ShadowIRCd[28]	dwr, Eko, jdhore, jilles, nenolod	Charybdis[citation needed]	C	2003	shadowircd-6.0.0pre4	GPL	[20]
snircd	QuakeNet	IRCd[29]	C[29]	?	1.3.4a[30]	GPL[29]	[21]
solid-ircd	Toshi Morita, Juan Baez	Bahamut	C	2004[31]	solid-ircd 3.4.8	GPL	[22]
SorIrcd	SorceryNet	dal4.4.10 and irc2.8.mu3	C	1996	? (replaced by Charybdis)	GPL	[23]
Synchronet IRCd[32]	Randy E. Sommerfeld	(from scratch)	JavaScript	2003	SynchronetIRCd-1.3a(1.151)	GPL	?
synIRCd	Nathan (nate) Bishop	(from scratch)	C++	-	In Development[33]	GPL	[24]
TR-IRCD [34]	Yusuf Iskenderoglu, Ekim Engin, Dimitris Ginosatiris, hybridus, Maksut Cagil, burak	Hybrid 7 and Bahamut	C	?	?	GPL	[25]
UltimateIRCd	ShadowRealm Creations	DreamForge 2.8	C	2001	3.0.2 [35] (now unmaintained)	GPL	[26]
UnrealIRCd [36]	UnrealIRCd Team	EliteIRCd (potvin)[37]	C	1999	Unreal3.2.8.1[38]	GPL	[27]
Viagra IRCd[39]	Chris Schiffner	Titan	C	2003	1.3.3 (now unmaintained)	GPL	[28]
WeIRCd	Eloxoph IRC Network[40]	(from scratch)[40]	C[40]	2007[41]	WeIRCd 0.7.2[42]	GPL[43]	[29]

[edit] Operating system support

The operating systems the daemons can run on without emulation; also supported event dispatch facilities for network sockets (see IRCd for further information).

IRC daemon	Windows	MS-DOS	Mac OS X	Linux	BSD	Solaris	HP-UX	AIX	select()	poll()	epoll[44]	kqueue[45]	RT signals[46]	/dev/poll	Windows IOCP	Solaris IOCP
Bahamut	No	No	Yes	Yes	Yes	Yes	?	?	Yes	Yes	Yes	Yes	No	Yes	No	No
bIRCd	Yes	No	?	Yes	Yes	Yes	Yes	?	Yes	Yes	No	No	No	No	No	No
Charybdis	No	No	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	No	Yes	No	Yes
ConferenceRoom	Yes	No	Yes	Yes	Yes	Yes	No	No	Yes	Yes	Yes	Yes	No	Yes	Yes	No
InspIRCd[47]	Yes	No	Yes	Yes	Yes	Yes	Yes	Yes[citation needed]	Yes	Yes	Yes	Yes	No	No	Yes	Yes
IRCD	No	No	No	Yes	Yes	Yes	Yes	Yes	Yes	Yes	No	No	No	No	No	No
ircd-ratbox	Yes	No	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	No	Yes
ircu	No	No	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	No	Yes	No	No
ithildin	No	No	No	Yes	Yes	?	?	?	Yes	Yes	No	Yes	No	No	No	No
Nefarious IRCu	Yes	No	Yes	Yes	Yes	Yes	Yes	?	Yes	Yes	Yes	Yes	No	Yes	No	No
ngIRCd	Yes	No	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	No	Yes	No	No
OfficeIRC Server	Yes	No	Yes	Yes	Yes	No	No	No	?	?	No	No	No	No	Yes	No
PleXusIRCd	Yes	No	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	No	No
pureIRCd	Yes	No	No	No	No	No	No	No	Yes	No	No	No	No	No	No	No
RockIRCd	No	Yes	No	No	No	No	No	No	No	No	No	No	No	No	No	No
ShadowIRCd	Yes	No	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	No	Yes
snircd	?	?	?	?	?	?	?	?	?	?	?	?	?	?	?	?
solid-ircd	No	No	Yes	Yes	Yes	Yes	?	?	Yes	Yes	Yes	Yes	No	Yes	No	No
Synchronet IRCd	Yes	No	Yes	Yes	Yes	Yes	?	?	Yes	Yes	Yes	Yes	No	Yes	No	No
synIRCd	?	?	?	?	?	?	?	?	?	?	?	?	?	?	?	?
UnrealIRCd	Yes	No	Yes	Yes	Yes	Yes	?	?	Yes	No	No	No	No	No	No	No
WeIRCd	Yes[40]	No	Yes[40]	Yes[40]	Yes[40]	?	?	?	Yes[43]	No	No	No	No	No	No	No

[edit] Technology

Various networking and IRC technology implemented to date.

IRC daemon	Modularity	Remote Includes	IPv6	Client SSL	SSL Linking	Zip Linking	Hostmasking / Cloaking	Services Integration (built-in services)	LDAP Authentication	IRCX Support	SASL Support	Server Protocol
Bahamut	No	No	No	No	Yes	Yes	No	No	No	No	No	TS5 with extensions
bIRCd	No	No	Yes	Yes	Yes	No	No	No	No	No	No	RFC 1459 and TSpre8
Charybdis	Yes	No	Yes	Yes	Yes	Yes	Yes	No	No	No	Yes	TS6 with extensions
ConferenceRoom	No	No	No	Yes	Yes	Yes	Yes	Yes	Yes	No	No	Proprietary, binary
InspIRCd	Yes[48]	Yes	Yes	Yes	Yes	Yes	Yes	No	Yes	No	Yes	TS6 based Spanning Tree, proprietary
IRCD	No	No	Yes	No	No	Yes	No	No	No	No	No	RFC 1459 and RFC 2813 with SID/UID
ircd-ratbox	Yes	No	Yes	Yes	Yes	Yes	No	No	No	No	No	TS6
ircu	No	No	Yes	No	No	No	Yes	No	No	No	No	P10
ithildin	Yes	No	Yes	Yes	Yes	Yes	Yes	Yes	No	No	No	Module-dependent
Nefarious IRCu	No	No	No	Yes	No	No	Yes	No	No	No	No	P10 with extensions
ngIRCd	No	No	Yes	No	No	Yes	No	No	No	No	No	RFC 1459 and RFC 2813
OfficeIRC Server	Yes	No	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	DreamForge/UnrealIRCd compatible
PleXusIRCd	Yes	No	Yes	Yes	Yes	Yes	Yes	No	?	No	No	TS5/TS6
pureIRCd	No	No	No	No	No	No	No	No	No	No	No	No
RockIRCd	No	No	No	No	No	No	Yes	No	No	No	No	RFC 1459 without linking
ShadowIRCd	Yes	No	Yes	Yes	Yes	Yes	Yes	No	No	No	Yes	TS6 with extensions
solid-ircd	No	No	No	Yes	Yes	Yes	Yes	No	No	No	No	TS5 with extensions
Synchronet IRCd	No	No	No	No	No	No	No	No	No	No	No	TS5 with extensions
UnrealIRCd	Yes	Yes	Yes	Yes	Yes	Yes	Yes	No	No	No	No	DreamForge/TS5 with extensions
WeIRCd	Partial[49]	No	Only on Unix systems	No	No	No	Yes	Yes (module)	No	No	No	No

[edit] Features

IRC server features, mostly extensions to RFC 1459. Probably also implementations of RFC 2810, RFC 2811, RFC 2812, RFC 2813, and possibly IRCX.

• +channels (In early IRCds, these were simply named channels. At least one modern IRCd (IRCD) uses the + prefix for modeless channels, ie no chanops and channel mode forced to +nt. This is described in RFC 2811.)
• #channels ("+channels" were later replaced with "#channels" in version 2.7, numeric channels were removed entirely and channel bans (mode +b) were implemented.)
• &channels (irc2.8, those that exist only on the current server, rather than the entire network)
•  !channels (irc2.10, those that are theoretically safe from suffering from the many ways that a user could exploit a channel by "riding a netsplit"; IRCds using timestamping provide (most of) this functionality on #channels)
•  %#channels (#channels whose name are in UTF-8 for IRCX)
•  %&channels (&channels whose name are in UTF-8 for IRCX)
•  %!channels (!channels whose name are in UTF-8 for IRCX)

IRC daemon	Channel Types	Halfop Support (+h %)	Admin/Protect Support (+a/+u &/!/*)	Founder/Owner Support (+q ~/.)	Operator Prefixing[50]	Advanced Operator ACL	Operator "Levels"[51]	vHost via i:line (or equivalent)	i18n Nicknames	RDBMS Integration (SQL)
Bahamut	#	No	No	No	No	No	No	Partial	No	No
bIRCd	# &	No	No	No	No	No	No	Partial	No	No
Charybdis	# &	No	No	No	No	Yes	via 3.1 privilege system	Yes	No	No
ConferenceRoom	# &	No	No	Yes	No	Yes	Yes	Yes	Partial	Partial
InspIRCd	#	Yes	Yes	Yes	Module	Yes	Module	Yes	Module	MySQL, SQLite & PostgreSQL: Authorization, Services Integration, Logging, Operaccess
IRCD	# & ! +	No	No	No	No	?	No	No	No	No
ircd-ratbox	# &	No	No	No	No	No	No	Yes	No	No
ircu	# &	No	Yes	No	No	Yes	No	No	No	No
ithildin	#	No	No	No	Yes	Yes	Yes	No	No
Nefarious IRCu	# &	Yes	No	No	No	Yes	No	Yes	No	No
ngIRCd	#	No	No	No	No	No	No	No	No	No
OfficeIRC Server	# %# & %&	No	Yes	Yes	Yes	Partial	Yes	Yes	Yes	Partial
PleXusIRCd	# &	Yes	Yes	Yes	No	No	?	Yes	?	No
pureIRCd	#	No	No	?	?	?	?	?	?	?
RockIRCd	#	No	Yes	Yes	?	?	Yes	No	?	No
ShadowIRCd	# &	No	Yes	No	No	Yes	No	Yes	No	No
solid-ircd	#	Yes	No	No	No	No	No	Partial	No	No
Synchronet IRCd	# &	No	No	No	No	No	No	No	No	No
UnrealIRCd	#	Yes	Yes	Yes	No	No	No	No	iso8859-1/2/7/8-I/9/16, windows-1250/1251, Multibyte	No
WeIRCd	#	Yes	No	No	No	No	No	No	No	SQLite in services module

IRC daemon	Connect-flood detection	Channel flood controls Basic / Advanced	Join throttling	Spamfilter Regexp / Glob	Channel Censor IRCd Config / Chanop-Controlled	Variable per-channel banlist size	Timed bans	DNSBL
Bahamut	Yes	Yes / No	Yes	No / No	No / No	No	No	No
bIRCd	No	No / No	No	No / No	No / No	No	No	No
Charybdis	Yes	No / No	Yes	No / No	No / No	Yes	Yes	Yes
ConferenceRoom	Yes	Yes / Yes	Yes	No / Yes	Partial / No	No	Partial	Yes
InspIRCd	Yes	Yes / Yes	Yes	Yes / Yes	Yes / Yes	Yes	Yes	Yes
IRCD	?	? / ?	?	? / ?	? / ?	?	?	?
ircd-ratbox	Yes	No / No	No	No / No	No / No	No	No	No
ircu	Yes	? / ?	?	? / ?	? / ?	?	?	No
ithildin	Module	No / No	No	No / No	No / No	No	No	?
Nefarious IRCu	Yes	No / No	No	No / No	No / No	No	No	Yes
ngIRCd	No	No / No	No	No / No	No / No	No	No	No
OfficeIRC Server	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes
PleXusIRCd	Yes	No / No	No	No / No	No / No	No	No	?
pureIRCd	?	? / ?	?	? / ?	? / ?	?	?	?
RockIRCd	No	Yes / No	No	No	No	No	No	No
ShadowIRCd	Yes	No / No	Yes	No / No	No / No	Yes	Yes	Yes
solid-ircd	Yes	Yes / No	Yes	No / No	No / No	No	No	No
Synchronet IRCd	Yes	Yes / No	Yes	No / No	No / No	No / No	No	No
UnrealIRCd	No	Yes	Yes	Yes / No	Yes / No	No	No	Third party module
WeIRCd	Partial	No / No	No	No / No	No / No	No	No	No

[edit] Notes

[edit] See also

• IRCd
• IRC services
• Internet Relay Chat
• IRCX
• Comparison of IRC clients
• Comparison of IRC services
• Comparison of instant messaging clients
• Comparison of instant messaging protocols

[edit] External links

• History of IRC
• IRCD distribution
• IRC numerics and modes from major IRCds

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