Node Configuration Options

Here are the available node configuration options, along with their default values and descriptions:

Application-level config

Name	Default Value	Description
config-file		Loads configuration from a TOML file (cmd-line parameters take precedence)
protected-topic	newSeq[ProtectedTopic](0)	Topics and its public key to be used for message validation, topic:pubkey. Argument may be repeated

Log config

Name	Default Value	Description
log-level	logging.LogLevel.INFO	Sets the log level for process. Supported levels: TRACE, DEBUG, INFO, NOTICE, WARN, ERROR or FATAL
log-format	logging.LogFormat.TEXT	Specifies what kind of logs should be written to stdout. Supported formats: TEXT, JSON

General node config

Name	Default Value	Description
cluster-id	0	Cluster id that the node is running in. Node in a different cluster id is disconnected
agent-string	nwaku	Node agent string which is used as identifier in network
nodekey		P2P node private key as 64-char hex string
listen-address	defaultListenAddress()	Listening address for LibP2P (and Discovery v5, if enabled) traffic
tcp-port	60000	TCP listening port
ports-shift	0	Add a shift to all port numbers
nat	any	Specify method to use for determining public address. Must be one of: any, none, upnp, pmp, extip:<IP>
ext-multiaddr		External multiaddresses to advertise to the network. Argument may be repeated
ext-multiaddr-only	false	Only announce external multiaddresses
max-connections	50	Maximum allowed number of libp2p connections
max-relay-peers		Maximum allowed number of relay peers
peer-store-capacity		Maximum stored peers in the peerstore
peer-persistence	false	Enable peer persistence

DNS addrs config

Name	Default Value	Description
dns-addrs	true	Enable resolution of dnsaddr, dns4 or dns6 multiaddrs
dns-addrs-name-server	["1.1.1.1", "1.0.0.1"]	DNS name server IPs to query for DNS multiaddrs resolution. Argument may be repeated
dns4-domain-name		The domain name resolving to the node's public IPv4 address

Relay config

Name	Default Value	Description
relay	true	Enable relay protocol: true|false
relay-peer-exchange	false	Enable gossipsub peer exchange in relay protocol: true|false
rln-relay	false	Enable spam protection through rln-relay: true|false
rln-relay-cred-path		The path for persisting rln-relay credential
rln-relay-membership-index		The index of the onchain commitment to use
rln-relay-dynamic	false	Enable waku-rln-relay with on-chain dynamic group management: true|false
rln-relay-id-key		Rln relay identity secret key as a Hex string
rln-relay-id-commitment-key		Rln relay identity commitment key as a Hex string
rln-relay-eth-client-address	ws://localhost:8540/	WebSocket address of an Ethereum testnet client e.g., ws://localhost:8540/
rln-relay-eth-contract-address		Address of membership contract on an Ethereum testnet
rln-relay-eth-private-key		Private key for broadcasting transactions
execute	false	Runs the registration function on-chain. By default, a dry-run will occur
rln-relay-cred-password		Password for encrypting RLN credentials
rln-relay-tree-path		Path to the RLN merkle tree sled db (https://github.com/spacejam/sled)
rln-relay-bandwidth-threshold	0 # to maintain backwards compatibility	Message rate in bytes/sec after which verification of proofs should happen
staticnode		Peer multiaddr to directly connect with. Argument may be repeated
keep-alive	false	Enable keep-alive for idle connections: true|false
pubsub-topic		Default pubsub topic to subscribe to. Argument may be repeated. Deprecated! Please use shard and/or content-topic instead
shard		Shard to subscribe to. Argument may be repeated
num-shards-in-network		Number of shards in the network. Used to map content topics to shards when using autosharding
content-topic		Default content topic to subscribe to. Argument may be repeated
reliability	false	Enable experimental reliability protocol true|false

Store and message store config

Name	Default Value	Description
store	false	Enable/disable waku store protocol
storenode		Peer multiaddress to query for storage
store-message-retention-policy	time:172800	Message store retention policy. Time retention policy: time:<seconds>. Capacity retention policy: capacity:<count>. Size retention policy: size:<xMB/xGB>. Set to none to disable
store-message-db-url	sqlite://store.sqlite3	The database connection URL for persistent storage
store-message-db-vacuum	false	Enable database vacuuming at start. Only supported by SQLite database engine
store-message-db-migration	true	Enable database migration at start

Filter config

Name	Default Value	Description
filter	false	Enable filter protocol: true|false
filternode		Peer multiaddr to request content filtering of messages
filter-subscription-timeout	300 # 5 minutes	Timeout for filter subscription without ping or refresh it, in seconds. Only for v2 filter protocol
filter-max-peers-to-serve	1000	Maximum number of peers to serve at a time. Only for v2 filter protocol
filter-max-criteria	1000	Maximum number of pubsub and content topic combinations per peer at a time. Only for v2 filter protocol

Light push config

Name	Default Value	Description
lightpush	false	Enable lightpush protocol: true|false
lightpushnode		Peer multiaddr to request lightpush of published messages

REST HTTP config

Name	Default Value	Description
rest	false	Enable Waku REST HTTP server: true|false
rest-address	127.0.0.1	Listening address of the REST HTTP server
rest-port	8645	Listening port of the REST HTTP server
rest-relay-cache-capacity	30	Capacity of the Relay REST API message cache
rest-admin	false	Enable access to REST HTTP Admin API: true|false
rest-allow-origin		Allow cross-origin requests from the specified origin. When using the REST API in a browser, specify the origin host to get a valid response from the node REST HTTP server. This option may be repeated and can contain wildcards (?,*) for defining URLs and ports such as localhost:*, 127.0.0.1:8080, or allow any website with *

Metrics config

Name	Default Value	Description
metrics-server	false	Enable the metrics server: true|false
metrics-server-address	127.0.0.1	Listening address of the metrics server
metrics-server-port	8008	Listening HTTP port of the metrics server
metrics-logging	true	Enable metrics logging: true|false

DNS discovery config

Name	Default Value	Description
dns-discovery	false	Enable discovering nodes via DNS
dns-discovery-url		URL for DNS node list in format 'enrtree://<key>@<fqdn>'
dns-discovery-name-server	["1.1.1.1", "1.0.0.1"]	DNS name server IPs to query. Argument may be repeated

Discv5 config

Name	Default Value	Description
discv5-discovery	false	Enable discovering nodes via Node Discovery v5
discv5-udp-port	9000	Listening UDP port for Node Discovery v5
discv5-bootstrap-node		Text-encoded ENR for bootstrap node. Used when connecting to the network. Argument may be repeated
discv5-enr-auto-update	false	Discovery can automatically update its ENR with the IP address
discv5-table-ip-limit	10	Maximum amount of nodes with the same IP in discv5 routing tables
discv5-bucket-ip-limit	2	Maximum amount of nodes with the same IP in discv5 routing table buckets
discv5-bits-per-hop	1	Kademlia's b variable, increase for less hops per lookup

Waku peer exchange config

Name	Default Value	Description
peer-exchange	false	Enable waku peer exchange protocol (responder side): true|false
peer-exchange-node		Peer multiaddr to send peer exchange requests to. (enables peer exchange protocol requester side)

WebSocket config

Name	Default Value	Description
websocket-support	false	Enable websocket: true|false
websocket-port	8000	WebSocket listening port
websocket-secure-support	false	Enable secure websocket: true|false
websocket-secure-key-path		Secure websocket key path: '/path/to/key.txt'
websocket-secure-cert-path		Secure websocket Certificate path: '/path/to/cert.txt'

Non-relay, request-response protocol DOS protection configuration

Name	Default Value	Description
rate-limit		This is a repeatable option. Each can describe a specific rate limit configuration for a particular protocol. Formatted as:<protocol>:volume/period<time-unit> - if protocol is not given, settings will be taken as default for un-set protocols. Ex: 80/2s -Supported protocols are: lightpush|filter|px|store|storev2|storev3 -volume must be an integer value, representing number of requests over the period of time allowed. -period\<time-unit> must be an integer with defined unit as one of h|m|s|ms - storev2 and storev3 takes precedence over store which can easy set both store protocols at once. - In case of multiple set of the same protocol limit, last one will take place. - if config is not set, - which is the default - means unlimited requests are allowed. -filter has a bit different approach. It has a default setting applied if not overridden. Rate limit setting for filter will be applied per subscriber-peers, not globally - it must be considered when changing the setting. Examples: --rate-limit="100/1s" - default for all protocols if not set otherwise. --rate-limit="lightpush:0/0s" - lightpush protocol will not be rate-limited. --rate-limit="store:130/1500ms" - both store-v3 and store-v2 will apply 130 request per each 1500ms separately. --rate-limit="px:10/1h" PeerExchange will serve only 10 requests every hour. --rate-limit="filter:8/5m" - will allow 8 subs/unsubs/ping requests for each subscriber within every 5 min.

tip

To configure your node using the provided configuration options, have a look at the Node Configuration Methods guide.