website/content/docs/modules.md

Modules

echoIRCd is built module-per-file: each feature lives in its own source module, and most are toggled through the configuration. This is the full set that ships in the tree.

Anti-abuse & access control

Module	Provides
connclass	Connection classes — match by IP/host/TLS/port, then apply reject / clone-caps / password / modes / queue / flood / ping policy
connflood	Refuse connections from an IP opening too many too fast
connectban	Z-line an IP range that opens too many connections
conn_waitpong	Hold registration until the client PONGs an exact server cookie
flood	Per-user message-rate limit (fakelag); opers exempt
dnsbl	DNS blocklist checks on connect
reputation	Per-address reputation scoring over time; y: extban
securitygroups	Named AND-ed user sets; g: extban
antirandom	Score drone-like random nick/ident/realname
antimixedutf8	Block mixed-Unicode-script look-alike spam
filter	Oper-configured spam/word glob filters
blockamsg	Block mass /amsg and /ame
solvemsg	Un-vouched user answers an arithmetic question before PMs deliver
recaptcha / cloudflare_challenge	Registration human-verification gates
autodrop	Silently drop HTTP-scanner connections
restrictmsg / restrictcommands / restrictchans / denychans / channames	Message/command/channel restrictions
dccallow	Gate DCC by filename unless the recipient allowed the sender
hashident	Replace ident with a stable per-IP HMAC token

Bans & extbans

Module	Provides
accountban	a: extban (match by account)
realnameban	r: extban (match by realname)
serverban	s: extban (match by server)
channelban	j: extban (match by another channel)
extbanbanlist	b: extban (match another channel's ban list)
banredirect	+b <mask>$<#channel> bounces a banned user elsewhere
geoip	GeoIP + G: country extban, GEOIP, WHOIS geo
asn	ASN lookup feeding classes, groups, extbans, WHOIS

Channels & modes

Module	Provides
customprefix	Reconfigure or add channel prefix tiers
namedmodes	PROP — set/query modes by long name
permchannels	Persist +P permanent channels across restarts
autoop	+w auto-grant a prefix on join
rmode	Bulk-remove list-mode entries
hidemode / hidelist	Hide mode changes / list entries below a rank

IRCv3 & client features

Module	Provides
chathistory	draft/chathistory + draft/message-redaction
event_playback	draft/event-playback
multiline	Server side of draft/multiline
metadata	draft/metadata-2
markread	draft/read-marker
webpush	draft/webpush (RFC 8291/8292)
account_registration	draft/account-registration bridged to an HTTP backend
extended_isupport	draft/extended-isupport
relaymsg	draft/relaymsg
filehost	Advertise a file-host + signed upload links
extjwt	EXTJWT server-signed identity tokens
irccloudtags	Validate IRCCloud client-only tags

Operators & staff

Module	Provides
opertypes	Oper classes + types (capability bundles)
operlevels	Numeric oper level (KILL protection tiers)
operprefix	The ! oper channel prefix
ojoin	Join a channel as network staff
password_hash	Hashed oper passwords + MKPASSWD
globops	GLOBOPS broadcast
maphide / hidewhois / hideservices (opers)	Hide topology / WHOIS lines / services
tline	Gauge a would-be ban's blast radius
customtitle	TITLE — claim a WHOIS title/vhost

Cloaking, DNS & identity

Module	Provides
cloak	Keyed host masking (+x)
ident	Optional RFC 1413 ident lookups
jwt	HS256 JWS/JWT signer shared by captcha / challenge / extjwt

Observability & integration

Module	Provides
metrics	Prometheus/OpenMetrics endpoint
rpc	JSON-RPC 2.0 control interface (see Metrics & RPC)
syslog / log_json / jsonlog	Mirror the log stream to syslog / a JSONL file / per-oper JSON tags
chanlog	Mirror oper snotices into a channel
whoisport	Show an oper the port a user connected to
showfile / randquote / network_icon / profilelink	Serve a file as a command, greet quotes, network icon, WHOIS profile link
securelist	Hold /LIST for fresh connections