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