# Configure a node

IPFS is configured through a json formatted text file, located by default at ~/.ipfs/config. Implementation-specific information can be found within the go-ipfs (opens new window) and js-ipfs (opens new window) repositories. It is read once at node instantiation, either for an offline command, or when starting the daemon. Commands that execute on a running daemon do not read the config file at runtime.

# Profiles

Configuration profiles allow you to tweak configuration quickly. Profiles can be
applied with --profile flag to ipfs init or with the ipfs config profile apply command. When a profile is applied a backup of the configuration file
will be created in $IPFS_PATH.

The available configuration profiles are listed below. You can also find them
documented in ipfs config profile --help.

  • server

    Disables local host discovery, recommended when
    running IPFS on machines with public IPv4 addresses.

  • randomports

    Use a random port number for swarm.

  • default-datastore

    Configures the node to use the default datastore (flatfs).

    Read the "flatfs" profile description for more information on this datastore.

    This profile may only be applied when first initializing the node.

  • local-discovery

    Sets default values to fields affected by the server
    profile, enables discovery in local networks.

  • test

    Reduces external interference of IPFS daemon, this
    is useful when using the daemon in test environments.

  • default-networking

    Restores default network settings.
    Inverse profile of the test profile.

  • flatfs

    Configures the node to use the flatfs datastore.

    This is the most battle-tested and reliable datastore, but it's significantly
    slower than the badger datastore. You should use this datastore if:

    • You need a very simple and very reliable datastore you and trust your
      filesystem. This datastore stores each block as a separate file in the
      underlying filesystem so it's unlikely to loose data unless there's an issue
      with the underlying file system.
    • You need to run garbage collection on a small (<= 10GiB) datastore. The
      default datastore, badger, can leave several gigabytes of data behind when
      garbage collecting.
    • You're concerned about memory usage. In its default configuration, badger can
      use up to several gigabytes of memory.

    This profile may only be applied when first initializing the node.

  • badgerds

    Configures the node to use the badger datastore.

    This is the fastest datastore. Use this datastore if performance, especially
    when adding many gigabytes of files, is critical. However:

    • This datastore will not properly reclaim space when your datastore is
      smaller than several gigabytes. If you run IPFS with '--enable-gc' (you have
      enabled block-level garbage collection), you plan on storing very little data in
      your IPFS node, and disk usage is more critical than performance, consider using
    • This datastore uses up to several gigabytes of memory.

    This profile may only be applied when first initializing the node.

  • lowpower

    Reduces daemon overhead on the system. May affect node
    functionality - performance of content discovery and data
    fetching may be degraded.

# Types

This document refers to the standard JSON types (e.g., null, string,
number, etc.), as well as a few custom types, described below.

# flag

Flags allow enabling and disabling features. However, unlike simple booleans,
they can also be null (or omitted) to indicate that the default value should
be chosen. This makes it easier for go-ipfs to change the defaults in the
future unless the user explicitly sets the flag to either true (enabled) or
false (disabled). Flags have three possible states:

  • null or missing (apply the default value).
  • true (enabled)
  • false (disabled)

# priority

Priorities allow specifying the priority of a feature/protocol and disabling the
feature/protocol. Priorities can take one of the following values:

  • null/missing (apply the default priority, same as with flags)
  • false (disabled)
  • 1 - 2^63 (priority, lower is preferred)

# strings

Strings is a special type for conveniently specifying a single string, an array
of strings, or null:

  • null
  • "a single string"
  • ["an", "array", "of", "strings"]

# duration

Duration is a type for describing lengths of time, using the same format go
does (e.g, "1d2h4m40.01s").

# Addresses

Contains information about various listener addresses to be used by this node.

# Addresses.API

Multiaddr or array of multiaddrs describing the address to serve the local HTTP
API on.

Supported Transports:

  • tcp/ip{4,6} - /ipN/.../tcp/...
  • unix - /unix/path/to/socket

Default: /ip4/

Type: strings (multiaddrs)

# Addresses.Gateway

Multiaddr or array of multiaddrs describing the address to serve the local
gateway on.

Supported Transports:

  • tcp/ip{4,6} - /ipN/.../tcp/...
  • unix - /unix/path/to/socket

Default: /ip4/

Type: strings (multiaddrs)

# Addresses.Swarm

Array of multiaddrs describing which addresses to listen on for p2p swarm

Supported Transports:

  • tcp/ip{4,6} - /ipN/.../tcp/...
  • websocket - /ipN/.../tcp/.../ws
  • quic - /ipN/.../udp/.../quic



Type: array[string] (multiaddrs)

# Addresses.Announce

If non-empty, this array specifies the swarm addresses to announce to the
network. If empty, the daemon will announce inferred swarm addresses.

Default: []

Type: array[string] (multiaddrs)

# Addresses.NoAnnounce

Array of swarm addresses not to announce to the network.

Default: []

Type: array[string] (multiaddrs)


Contains information used by the API gateway.

# API.HTTPHeaders

Map of HTTP headers to set on responses from the API HTTP server.


  "Foo": ["bar"]

Default: null

Type: object[string -> array[string]] (header names -> array of header values)

# AutoNAT

Contains the configuration options for the AutoNAT service. The AutoNAT service
helps other nodes on the network determine if they're publicly reachable from
the rest of the internet.

# AutoNAT.ServiceMode

When unset (default), the AutoNAT service defaults to enabled. Otherwise, this
field can take one of two values:

  • "enabled" - Enable the service (unless the node determines that it, itself,
    isn't reachable by the public internet).
  • "disabled" - Disable the service.

Additional modes may be added in the future.

Type: string (one of "enabled" or "disabled")

# AutoNAT.Throttle

When set, this option configure's the AutoNAT services throttling behavior. By
default, go-ipfs will rate-limit the number of NAT checks performed for other
nodes to 30 per minute, and 3 per peer.

# AutoNAT.Throttle.GlobalLimit

Configures how many AutoNAT requests to service per AutoNAT.Throttle.Interval.

Default: 30

Type: integer (non-negative, 0 means unlimited)

# AutoNAT.Throttle.PeerLimit

Configures how many AutoNAT requests per-peer to service per AutoNAT.Throttle.Interval.

Default: 3

Type: integer (non-negative, 0 means unlimited)

# AutoNAT.Throttle.Interval

Configures the interval for the above limits.

Default: 1 Minute

Type: duration (when 0/unset, the default value is used)

# Bootstrap

Bootstrap is an array of multiaddrs of trusted nodes to connect to in order to
initiate a connection to the network.

Default: The ipfs.io bootstrap nodes

Type: array[string] (multiaddrs)

# Datastore

Contains information related to the construction and operation of the on-disk
storage system.

# Datastore.StorageMax

A soft upper limit for the size of the ipfs repository's datastore. With StorageGCWatermark,
is used to calculate whether to trigger a gc run (only if --enable-gc flag is set).

Default: "10GB"

Type: string (size)

# Datastore.StorageGCWatermark

The percentage of the StorageMax value at which a garbage collection will be
triggered automatically if the daemon was run with automatic gc enabled (that
option defaults to false currently).

Default: 90

Type: integer (0-100%)

# Datastore.GCPeriod

A time duration specifying how frequently to run a garbage collection. Only used
if automatic gc is enabled.

Default: 1h

Type: duration (an empty string means the default value)

# Datastore.HashOnRead

A boolean value. If set to true, all block reads from disk will be hashed and
verified. This will cause increased CPU utilization.

Default: false

Type: bool

# Datastore.BloomFilterSize

A number representing the size in bytes of the blockstore's bloom
filter (opens new window)
. A value of zero represents
the feature being disabled.

This site generates useful graphs for various bloom filter values:
https://hur.st/bloomfilter/?n=1e6&p=0.01&m=&k=7 (opens new window) You may use it to find a
preferred optimal value, where m is BloomFilterSize in bits. Remember to
convert the value m from bits, into bytes for use as BloomFilterSize in the
config file. For example, for 1,000,000 blocks, expecting a 1% false positive
rate, you'd end up with a filter size of 9592955 bits, so for BloomFilterSize
we'd want to use 1199120 bytes. As of writing, 7 hash
functions (opens new window)

are used, so the constant k is 7 in the formula.

Default: 0 (disabled)

Type: integer (non-negative, bytes)

# Datastore.Spec

Spec defines the structure of the ipfs datastore. It is a composable structure,
where each datastore is represented by a json object. Datastores can wrap other
datastores to provide extra functionality (eg metrics, logging, or caching).

This can be changed manually, however, if you make any changes that require a
different on-disk structure, you will need to run the ipfs-ds-convert
tool (opens new window)
to migrate data into the new


  "mounts": [
	  "child": {
		"path": "blocks",
		"shardFunc": "/repo/flatfs/shard/v1/next-to-last/2",
		"sync": true,
		"type": "flatfs"
	  "mountpoint": "/blocks",
	  "prefix": "flatfs.datastore",
	  "type": "measure"
	  "child": {
		"compression": "none",
		"path": "datastore",
		"type": "levelds"
	  "mountpoint": "/",
	  "prefix": "leveldb.datastore",
	  "type": "measure"
  "type": "mount"

Type: object

# Discovery

Contains options for configuring ipfs node discovery mechanisms.

# Discovery.MDNS

Options for multicast dns peer discovery.

# Discovery.MDNS.Enabled

A boolean value for whether or not mdns should be active.

Default: true

Type: bool

# Discovery.MDNS.Interval

A number of seconds to wait between discovery checks.

Default: 5

Type: integer (integer seconds, 0 means the default)

# Gateway

Options for the HTTP gateway.

# Gateway.NoFetch

When set to true, the gateway will only serve content already in the local repo
and will not fetch files from the network.

Default: false

Type: bool

A boolean to configure whether DNSLink lookup for value in Host HTTP header
should be performed. If DNSLink is present, content path stored in the DNS TXT
record becomes the / and respective payload is returned to the client.

Default: false

Type: bool

# Gateway.HTTPHeaders

Headers to set on gateway responses.


  "Access-Control-Allow-Headers": ["X-Requested-With"],
  "Access-Control-Allow-Methods": ["GET"],
  "Access-Control-Allow-Origin": ["*"]

Type: object[string -> array[string]]

# Gateway.RootRedirect

A url to redirect requests for / to.

Default: ""

Type: string (url)

# Gateway.Writable

A boolean to configure whether the gateway is writeable or not.

Default: false

Type: bool

# Gateway.PathPrefixes

Array of acceptable url paths that a client can specify in X-Ipfs-Path-Prefix

The X-Ipfs-Path-Prefix header is used to specify a base path to prepend to links
in directory listings and for trailing-slash redirects. It is intended to be set
by a frontend http proxy like nginx.

Example: We mount blog.ipfs.io (a dnslink page) at ipfs.io/blog.


"Gateway": {
  "PathPrefixes": ["/blog"],


location /blog/ {
  rewrite "^/blog(/.*)$" $1 break;
  proxy_set_header Host blog.ipfs.io;
  proxy_set_header X-Ipfs-Gateway-Prefix /blog;

Default: []

Type: array[string]

# Gateway.PublicGateways

PublicGateways is a dictionary for defining gateway behavior on specified hostnames.

Hostnames can optionally be defined with one or more wildcards.


  • *.example.com will match requests to http://foo.example.com/ipfs/* or http://{cid}.ipfs.bar.example.com/*.
  • foo-*.example.com will match requests to http://foo-bar.example.com/ipfs/* or http://{cid}.ipfs.foo-xyz.example.com/*.

# Gateway.PublicGateways: Paths

Array of paths that should be exposed on the hostname.


  "Gateway": {
    "PublicGateways": {
      "example.com": {
        "Paths": ["/ipfs", "/ipns"]

Above enables http://example.com/ipfs/* and http://example.com/ipns/* but not http://example.com/api/*

Default: []

Type: array[string]

# Gateway.PublicGateways: UseSubdomains

A boolean to configure whether the gateway at the hostname provides Origin isolation (opens new window)
between content roots.

  • true - enables subdomain gateway at http://*.{hostname}/

    • Requires whitelist: make sure respective Paths are set.
      For example, Paths: ["/ipfs", "/ipns"] are required for http://{cid}.ipfs.{hostname} and http://{foo}.ipns.{hostname} to work:
      json "Gateway": { "PublicGateways": { "dweb.link": { "UseSubdomains": true, "Paths": ["/ipfs", "/ipns"], } } }
    • Backward-compatible: requests for content paths such as http://{hostname}/ipfs/{cid} produce redirect to http://{cid}.ipfs.{hostname}
    • API: if /api is on the Paths whitelist, http://{hostname}/api/{cmd} produces redirect to http://api.{hostname}/api/{cmd}
  • false - enables path gateway at http://{hostname}/*

    • Example:
      json "Gateway": { "PublicGateways": { "ipfs.io": { "UseSubdomains": false, "Paths": ["/ipfs", "/ipns", "/api"], } } }

Default: false

Type: bool

A boolean to configure whether DNSLink for hostname present in Host
HTTP header should be resolved. Overrides global setting.
If Paths are defined, they take priority over DNSLink.

Default: false (DNSLink lookup enabled by default for every defined hostname)

Type: bool

# Implicit defaults of Gateway.PublicGateways

Default entries for localhost hostname and loopback IPs are always present.
If additional config is provided for those hostnames, it will be merged on top of implicit values:

  "Gateway": {
    "PublicGateways": {
      "localhost": {
        "Paths": ["/ipfs", "/ipns"],
        "UseSubdomains": true

It is also possible to remove a default by setting it to null.
For example, to disable subdomain gateway on localhost
and make that hostname act the same as

$ ipfs config --json Gateway.PublicGateways '{"localhost": null }'

# Gateway recipes

Below is a list of the most common public gateway setups.

  • Public subdomain gateway at http://{cid}.ipfs.dweb.link (each content root gets its own Origin)

    $ ipfs config --json Gateway.PublicGateways '{
        "dweb.link": {
          "UseSubdomains": true,
          "Paths": ["/ipfs", "/ipns"]

    Backward-compatible: this feature enables automatic redirects from content paths to subdomains:
    X-Forwarded-Proto: if you run go-ipfs behind a reverse proxy that provides TLS, make it add a X-Forwarded-Proto: https HTTP header to ensure users are redirected to https://, not http://. It will also ensure DNSLink names are inlined to fit in a single DNS label, so they work fine with a wildcart TLS cert (details (opens new window)). The NGINX directive is proxy_set_header X-Forwarded-Proto "https";.:
    X-Forwarded-Host: we also support X-Forwarded-Host: example.com if you want to override subdomain gateway host from the original request:

  • Public path gateway at http://ipfs.io/ipfs/{cid} (no Origin separation)

    $ ipfs config --json Gateway.PublicGateways '{
        "ipfs.io": {
          "UseSubdomains": false,
          "Paths": ["/ipfs", "/ipns", "/api"]
  • Public DNSLink (opens new window) gateway resolving every hostname passed in Host header.

    $ ipfs config --json Gateway.NoDNSLink true
    • Note that NoDNSLink: false is the default (it works out of the box unless set to true manually)
  • Hardened, site-specific DNSLink gateway.
    Disable fetching of remote data (NoFetch: true)
    and resolving DNSLink at unknown hostnames (NoDNSLink: true).
    Then, enable DNSLink gateway only for the specific hostname (for which data
    is already present on the node), without exposing any content-addressing Paths:
    "NoFetch": true,
    "NoDNSLink": true,

    $ ipfs config --json Gateway.NoFetch true
    $ ipfs config --json Gateway.NoDNSLink true
    $ ipfs config --json Gateway.PublicGateways '{
        "en.wikipedia-on-ipfs.org": {
          "NoDNSLink": false,
          "Paths": []

# Identity

# Identity.PeerID

The unique PKI identity label for this configs peer. Set on init and never read,
it's merely here for convenience. Ipfs will always generate the peerID from its
keypair at runtime.

Type: string (peer ID)

# Identity.PrivKey

The base64 encoded protobuf describing (and containing) the nodes private key.

Type: string (base64 encoded)

# Ipns

# Ipns.RepublishPeriod

A time duration specifying how frequently to republish ipns records to ensure
they stay fresh on the network.

Default: 4 hours.

Type: interval or an empty string for the default.

# Ipns.RecordLifetime

A time duration specifying the value to set on ipns records for their validity

Default: 24 hours.

Type: interval or an empty string for the default.

# Ipns.ResolveCacheSize

The number of entries to store in an LRU cache of resolved ipns entries. Entries
will be kept cached until their lifetime is expired.

Default: 128

Type: integer (non-negative, 0 means the default)

# Mounts

FUSE mount point configuration options.

# Mounts.IPFS

Mountpoint for /ipfs/.

Default: /ipfs

Type: string (filesystem path)

# Mounts.IPNS

Mountpoint for /ipns/.

Default: /ipns

Type: string (filesystem path)

# Mounts.FuseAllowOther

Sets the FUSE allow other option on the mountpoint.

# Pinning

Pinning configures the options available for pinning content
(i.e. keeping content longer term instead of as temporarily cached storage).

# Pinning.RemoteServices

RemoteServices maps a name for a remote pinning service to its configuration.

A remote pinning service is a remote service that exposes an API for managing
that service's interest in longer term data storage.

The exposed API conforms to the specification defined at

# Pinning.RemoteServices: API

Contains information relevant to utilizing the remote pinning service


  "Pinning": {
    "RemoteServices": {
      "myPinningService": {
        "API": {
          "Endpoint": "https://pinningservice.tld:1234/my/api/path",
          "Key": "someOpaqueKey"
# Pinning.RemoteServices: API.Endpoint

The HTTP(S) endpoint through which to access the pinning service

Example: "https://pinningservice.tld:1234/my/api/path"

Type: string

# Pinning.RemoteServices: API.Key

The key through which access to the pinning service is granted

Type: string

# Pubsub

Pubsub configures the ipfs pubsub subsystem. To use, it must be enabled by
passing the --enable-pubsub-experiment flag to the daemon.

# Pubsub.Router

Sets the default router used by pubsub to route messages to peers. This can be one of:

  • "floodsub" - floodsub is a basic router that simply floods messages to all
    connected peers. This router is extremely inefficient but very reliable.
  • "gossipsub" - gossipsub (opens new window) is a more advanced routing algorithm that will
    build an overlay mesh from a subset of the links in the network.

Default: "gossipsub"

Type: string (one of "floodsub", "gossipsub", or "" (apply default))

# Pubsub.DisableSigning

Disables message signing and signature verification. Enable this option if
you're operating in a completely trusted network.

It is not safe to disable signing even if you don't care who sent the
message because spoofed messages can be used to silence real messages by
intentionally re-using the real message's message ID.

Default: false

Type: bool

# Peering

Configures the peering subsystem. The peering subsystem configures go-ipfs to
connect to, remain connected to, and reconnect to a set of nodes. Nodes should
use this subsystem to create "sticky" links between frequently useful peers to
improve reliability.


  • An IPFS gateway connected to an IPFS cluster should peer to ensure that the
    gateway can always fetch content from the cluster.
  • A dapp may peer embedded go-ipfs nodes with a set of pinning services or
    textile cafes/hubs.
  • A set of friends may peer to ensure that they can always fetch each other's

When a node is added to the set of peered nodes, go-ipfs will:

  1. Protect connections to this node from the connection manager. That is,
    go-ipfs will never automatically close the connection to this node and
    connections to this node will not count towards the connection limit.
  2. Connect to this node on startup.
  3. Repeatedly try to reconnect to this node if the last connection dies or the
    node goes offline. This repeated re-connect logic is governed by a randomized
    exponential backoff delay ranging from ~5 seconds to ~10 minutes to avoid
    repeatedly reconnect to a node that's offline.

Peering can be asymmetric or symmetric:

  • When symmetric, the connection will be protected by both nodes and will likely
    be vary stable.
  • When asymmetric, only one node (the node that configured peering) will protect
    the connection and attempt to re-connect to the peered node on disconnect. If
    the peered node is under heavy load and/or has a low connection limit, the
    connection may flap repeatedly. Be careful when asymmetrically peering to not
    overload peers.

# Peering.Peers

The set of peers with which to peer.

  "Peering": {
    "Peers": [
        "ID": "QmPeerID1",
        "Addrs": ["/ip4/"]
        "ID": "QmPeerID2",
        "Addrs": ["/ip4/", "/ip4/"]

Where ID is the peer ID and Addrs is a set of known addresses for the peer. If no addresses are specified, the DHT will be queried.

Additional fields may be added in the future.

Default: empty.

Type: array[peering]

# Reprovider

# Reprovider.Interval

Sets the time between rounds of reproviding local content to the routing
system. If unset, it defaults to 12 hours. If set to the value "0" it will
disable content reproviding.

Note: disabling content reproviding will result in other nodes on the network
not being able to discover that you have the objects that you have. If you want
to have this disabled and keep the network aware of what you have, you must
manually announce your content periodically.

Type: array[peering]

# Reprovider.Strategy

Tells reprovider what should be announced. Valid strategies are:

  • "all" - announce all stored data
  • "pinned" - only announce pinned data
  • "roots" - only announce directly pinned keys and root keys of recursive pins

Default: all

Type: string (or unset for the default)

# Routing

Contains options for content, peer, and IPNS routing mechanisms.

# Routing.Type

Content routing mode. Can be overridden with daemon --routing flag.

There are two core routing options: "none" and "dht" (default).

  • If set to "none", your node will use no routing system. You'll have to
    explicitly connect to peers that have the content you're looking for.
  • If set to "dht" (or "dhtclient"/"dhtserver"), your node will use the IPFS DHT.

When the DHT is enabled, it can operate in two modes: client and server.

  • In server mode, your node will query other peers for DHT records, and will
    respond to requests from other peers (both requests to store records and
    requests to retrieve records).
  • In client mode, your node will query the DHT as a client but will not respond
    to requests from other peers. This mode is less resource intensive than server

When Routing.Type is set to dht, your node will start as a DHT client, and
switch to a DHT server when and if it determines that it's reachable from the
public internet (e.g., it's not behind a firewall).

To force a specific DHT mode, client or server, set Routing.Type to
dhtclient or dhtserver respectively. Please do not set this to dhtserver
unless you're sure your node is reachable from the public network.


  "Routing": {
    "Type": "dhtclient"

Default: dht

Type: string (or unset for the default)

# Swarm

Options for configuring the swarm.

# Swarm.AddrFilters

An array of addresses (multiaddr netmasks) to not dial. By default, IPFS nodes
advertise all addresses, even internal ones. This makes it easier for nodes on
the same network to reach each other. Unfortunately, this means that an IPFS
node will try to connect to one or more private IP addresses whenever dialing
another node, even if this other node is on a different network. This may
trigger netscan alerts on some hosting providers or cause strain in some setups.

The server configuration profile fills up this list with sensible defaults,
preventing dials to all non-routable IP addresses (e.g., but
you should always check settings against your own network and/or hosting

Default: []

Type: array[string]

# Swarm.DisableBandwidthMetrics

A boolean value that when set to true, will cause ipfs to not keep track of
bandwidth metrics. Disabling bandwidth metrics can lead to a slight performance
improvement, as well as a reduction in memory usage.

Default: false

Type: bool

# Swarm.DisableNatPortMap

Disable automatic NAT port forwarding.

When not disabled (default), go-ipfs asks NAT devices (e.g., routers), to open
up an external port and forward it to the port go-ipfs is running on. When this
works (i.e., when your router supports NAT port forwarding), it makes the local
go-ipfs node accessible from the public internet.

Default: false

Type: bool

# Swarm.DisableRelay

Deprecated: Set Swarm.Transports.Network.Relay to false.

Disables the p2p-circuit relay transport. This will prevent this node from
connecting to nodes behind relays, or accepting connections from nodes behind

Default: false

Type: bool

# Swarm.EnableRelayHop

Configures this node to act as a relay "hop". A relay "hop" relays traffic for other peers.

WARNING: Do not enable this option unless you know what you're doing. Other
peers will randomly decide to use your node as a relay and consume all
available bandwidth. There is no rate-limiting.

Default: false

Type: bool

# Swarm.EnableAutoRelay

Enables "automatic relay" mode for this node. This option does two very
different things based on the Swarm.EnableRelayHop. See
#7228 (opens new window) for context.

Default: false

Type: bool

# Mode 1: EnableRelayHop is false

If Swarm.EnableAutoRelay is enabled and Swarm.EnableRelayHop is disabled,
your node will automatically use public relays from the network if it detects
that it cannot be reached from the public internet (e.g., it's behind a
firewall). This is likely the feature you're looking for.

If you enable EnableAutoRelay, you should almost certainly disable

# Mode 2: EnableRelayHop is true

If EnableAutoRelay is enabled and EnableRelayHop is enabled, your node will
act as a public relay for the network. Furthermore, in addition to simply
relaying traffic, your node will advertise itself as a public relay. Unless you
have the bandwidth of a small ISP, do not enable both of these options at the
same time.

# Swarm.EnableAutoNATService


Please use [AutoNAT.ServiceMode][].

# Swarm.ConnMgr

The connection manager determines which and how many connections to keep and can
be configured to keep. Go-ipfs currently supports two connection managers:

  • none: never close idle connections.
  • basic: the default connection manager.

Default: basic

# Swarm.ConnMgr.Type

Sets the type of connection manager to use, options are: "none" (no connection
management) and "basic".

Default: "basic".

Type: string (when unset or "", the default connection manager is applied
and all ConnMgr fields are ignored).

# Basic Connection Manager

The basic connection manager uses a "high water", a "low water", and internal
scoring to periodically close connections to free up resources. When a node
using the basic connection manager reaches HighWater idle connections, it will
close the least useful ones until it reaches LowWater idle connections.

The connection manager considers a connection idle if:

  • It has not been explicitly protected by some subsystem. For example, Bitswap
    will protect connections to peers from which it is actively downloading data,
    the DHT will protect some peers for routing, and the peering subsystem will
    protect all "peered" nodes.
  • It has existed for longer than the GracePeriod.


  "Swarm": {
    "ConnMgr": {
      "Type": "basic",
      "LowWater": 100,
      "HighWater": 200,
      "GracePeriod": "30s"
# Swarm.ConnMgr.LowWater

LowWater is the number of connections that the basic connection manager will
trim down to.

Default: 600

Type: integer

# Swarm.ConnMgr.HighWater

HighWater is the number of connections that, when exceeded, will trigger a
connection GC operation. Note: protected/recently formed connections don't count
towards this limit.

Default: 900

Type: integer

# Swarm.ConnMgr.GracePeriod

GracePeriod is a time duration that new connections are immune from being closed
by the connection manager.

Default: "20s"

Type: duration

# Swarm.Transports

Configuration section for libp2p transports. An empty configuration will apply
the defaults.

# Swarm.Transports.Network

Configuration section for libp2p network transports. Transports enabled in
this section will be used for dialing. However, to receive connections on these
transports, multiaddrs for these transports must be added to Addresses.Swarm.

Supported transports are: QUIC, TCP, WS, and Relay.

Each field in this section is a flag.

# Swarm.Transports.Network.TCP

TCP (opens new window) is the most
widely used transport by go-ipfs nodes. It doesn't directly support encryption
and/or multiplexing, so libp2p will layer a security & multiplexing transport
over it.

Default: Enabled

Type: flag

Listen Addresses:

  • /ip4/ (default)
  • /ip6/::/tcp/4001 (default)

# Swarm.Transports.Network.Websocket

Websocket (opens new window) is a transport usually used
to connect to non-browser-based IPFS nodes from browser-based js-ipfs nodes.

While it's enabled by default for dialing, go-ipfs doesn't listen on this
transport by default.

Default: Enabled

Type: flag

Listen Addresses:

  • /ip4/
  • /ip6/::/tcp/4002/ws

# Swarm.Transports.Network.QUIC

QUIC (opens new window) is a UDP-based transport with
built-in encryption and multiplexing. The primary benefits over TCP are:

  1. It doesn't require a file descriptor per connection, easing the load on the OS.
  2. It currently takes 2 round trips to establish a connection (our TCP transport
    currently takes 6).

Default: Enabled

Type: flag

Listen Addresses:

  • /ip4/ (default)
  • /ip6/::/udp/4001/quic (default)

# Swarm.Transports.Network.Relay

Libp2p Relay (opens new window) proxy
transport that forms connections by hopping between multiple libp2p nodes. This
transport is primarily useful for bypassing firewalls and NATs.

Default: Enabled

Type: flag

Listen Addresses: This transport is special. Any node that enables this
transport can receive inbound connections on this transport, without specifying
a listen address.

# Swarm.Transports.Security

Configuration section for libp2p security transports. Transports enabled in
this section will be used to secure unencrypted connections.

Security transports are configured with the priority type.

When establishing an outbound connection, go-ipfs will try each security
transport in priority order (lower first), until it finds a protocol that the
receiver supports. When establishing an inbound connection, go-ipfs will let
the initiator choose the protocol, but will refuse to use any of the disabled

Supported transports are: TLS (priority 100), SECIO (Disabled: i.e. priority false), Noise
(priority 300).

No default priority will ever be less than 100.

# Swarm.Transports.Security.TLS

TLS (opens new window) (1.3) is the default
security transport as of go-ipfs 0.5.0. It's also the most scrutinized and
trusted security transport.

Default: 100

Type: priority

# Swarm.Transports.Security.SECIO

SECIO (opens new window) was the most widely
supported IPFS & libp2p security transport. However, it is currently being
phased out in favor of more popular and better vetted protocols like TLS and

Default: false

Type: priority

# Swarm.Transports.Security.Noise

Noise (opens new window) is slated to replace
TLS as the cross-platform, default libp2p protocol due to ease of
implementation. It is currently enabled by default but with low priority as it's
not yet widely supported.

Default: 300

Type: priority

# Swarm.Transports.Multiplexers

Configuration section for libp2p multiplexer transports. Transports enabled in
this section will be used to multiplex duplex connections.

Multiplexer transports are secured the same way security transports are, with
the priority type. Like with security transports, the initiator gets their
first choice.

Supported transports are: Yamux (priority 100) and Mplex (priority 200)

No default priority will ever be less than 100.

# Swarm.Transports.Multiplexers.Yamux

Yamux is the default multiplexer used when communicating between go-ipfs nodes.

Default: 100

Type: priority

# Swarm.Transports.Multiplexers.Mplex

Mplex is the default multiplexer used when communicating between go-ipfs and all
other IPFS and libp2p implementations. Unlike Yamux:

The mounts config values specifies the default mount points for the IPFS and IPNS virtual file systems, if no other directories are specified by the ipfs mount command. These folders should exist, and have permissions for your user to be able to mount to them via fuse.

Default: 200

Type: priority