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The go-ipfs config file

The go-ipfs config file is a JSON document located at $IPFS_PATH/config. 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.

Table of Contents

Profiles

Configuration profiles allow to tweak configuration quickly. Profiles can be applied with the --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 the incoming swarm connections.

  • 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

    Enables local discovery (enabled by default). Useful to re-enable local discovery after it's disabled by another profile (e.g., the server profile).

  • 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 and you trust your filesystem. This datastore stores each block as a separate file in the underlying filesystem so it's unlikely to lose 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 flatfs.
    • 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").

optionalInteger

Optional Integers allow specifying some numerical value which has an implicit default when null or missing from the config file:

  • null/missing (apply the default value defined in go-ipfs sources)
  • an integer between -2^63 and 2^63-1 (i.e. -9223372036854775808 to 9223372036854775807)

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: /ip4/127.0.0.1/tcp/5001

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: /ip4/127.0.0.1/tcp/8080

Type: strings (multiaddrs)

Addresses.Swarm

An array of multiaddrs describing which addresses to listen on for p2p swarm connections.

Supported Transports:

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

Default:

[
  "/ip4/0.0.0.0/tcp/4001",
  "/ip6/::/tcp/4001",
  "/ip4/0.0.0.0/udp/4001/quic",
  "/ip6/::/udp/4001/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

An array of swarm addresses not to announce to the network.

Default: []

Type: array[string] (multiaddrs)

API

Contains information used by the API gateway.

API.HTTPHeaders

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

Example:

{
	"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 that your node connects to, to fetch other nodes of the network on startup.

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 the 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. A value of zero represents the feature is disabled.

This site generates useful graphs for various bloom filter values: https://hur.st/bloomfilter/?n=1e6&p=0.01&m=&k=7 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 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 to migrate data into the new structures.

For more information on possible values for this configuration option, see docs/datastores.md

Default:

{
  "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

The number of seconds 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

Gateway.NoDNSLink

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

Default: false

Type: bool

Gateway.HTTPHeaders

Headers to set on gateway responses.

Default:

{
	"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

DEPRECATED: see go-ipfs#7702

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.

Examples:

  • *.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

An array of paths that should be exposed on the hostname.

Example:

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

Default: false

Type: bool

Gateway.PublicGateways: NoDNSLink

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 127.0.0.1:

$ 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:

      http://dweb.link/ipfs/{cid} → http://{cid}.ipfs.dweb.link

    • 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). The NGINX directive is proxy_set_header X-Forwarded-Proto "https";.:

      http://dweb.link/ipfs/{cid} → https://{cid}.ipfs.dweb.link

      http://dweb.link/ipns/your-dnslink.site.example.com → https://your--dnslink-site-example-com.ipfs.dweb.link

    • X-Forwarded-Host: we also support X-Forwarded-Host: example.com if you want to override subdomain gateway host from the original request:

      http://dweb.link/ipfs/{cid} → http://{cid}.ipfs.example.com

  • 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 gateway resolving every hostname passed in Host header.

    $ ipfs config --json Gateway.NoDNSLink false
    • 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:

    $ 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 node's private key.

Type: string (base64 encoded)

Internal

This section includes internal knobs for various subsystems to allow advanced users with big or private infrastructures to fine-tune some behaviors without the need to recompile go-ipfs.

Be aware that making informed change here requires in-depth knowledge and most users should leave these untouched. All knobs listed here are subject to breaking changes between versions.

Internal.Bitswap

Internal.Bitswap contains knobs for tuning bitswap resource utilization. The knobs (below) document how their value should related to each other. Whether their values should be raised or lowered should be determined based on the metrics ipfs_bitswap_active_tasks, ipfs_bitswap_pending_tasks, ipfs_bitswap_pending_block_tasks and ipfs_bitswap_active_block_tasks reported by bitswap.

These metrics can be accessed as the prometheus endpoint at {Addresses.API}/debug/metrics/prometheus (default: http://127.0.0.1:5001/debug/metrics/prometheus)

The value of ipfs_bitswap_active_tasks is capped by EngineTaskWorkerCount.

The value of ipfs_bitswap_pending_tasks is generally capped by the knobs below, however its exact maximum value is hard to predict as it depends on task sizes as well as number of requesting peers. However, as a rule of thumb, during healthy operation this value should oscillate around a "typical" low value (without hitting a plateau continuously).

If ipfs_bitswap_pending_tasks is growing while ipfs_bitswap_active_tasks is at its maximum then the node has reached its resource limits and new requests are unable to be processed as quickly as they are coming in. Raising resource limits (using the knobs below) could help, assuming the hardware can support the new limits.

The value of ipfs_bitswap_active_block_tasks is capped by EngineBlockstoreWorkerCount.

The value of ipfs_bitswap_pending_block_tasks is indirectly capped by ipfs_bitswap_active_tasks, but can be hard to predict as it depends on the number of blocks involved in a peer task which can vary.

If the value of ipfs_bitswap_pending_block_tasks is observed to grow, while ipfs_bitswap_active_block_tasks is at its maximum, there is indication that the number of available block tasks is creating a bottleneck (either due to high-latency block operations, or due to high number of block operations per bitswap peer task). In such cases, try increasing the EngineBlockstoreWorkerCount. If this adjustment still does not increase the throuput of the node, there might be hardware limitations like I/O or CPU.

Internal.Bitswap.TaskWorkerCount

Number of threads (goroutines) sending outgoing messages. Throttles the number of concurrent send operations.

Type: optionalInteger (thread count, null means default which is 8)

Internal.Bitswap.EngineBlockstoreWorkerCount

Number of threads for blockstore operations. Used to throttle the number of concurrent requests to the block store. The optimal value can be informed by the metrics ipfs_bitswap_pending_block_tasks and ipfs_bitswap_active_block_tasks. This would be a number that depends on your hardware (I/O and CPU).

Type: optionalInteger (thread count, null means default which is 128)

Internal.Bitswap.EngineTaskWorkerCount

Number of worker threads used for preparing and packaging responses before they are sent out. This number should generally be equal to TaskWorkerCount.

Type: optionalInteger (thread count, null means default which is 8)

Internal.Bitswap.MaxOutstandingBytesPerPeer

Maximum number of bytes (across all tasks) pending to be processed and sent to any individual peer. This number controls fairness and can very from 250Kb (very fair) to 10Mb (less fair, with more work dedicated to peers who ask for more). Values below 250Kb could cause thrashing. Values above 10Mb open the potential for aggressively-wanting peers to consume all resources and deteriorate the quality provided to less aggressively-wanting peers.

Type: optionalInteger (byte count, null means default which is 1MB)

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 lifetime.

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)

Migration

Migration configures how migrations are downloaded and if the downloads are added to IPFS locally.

Migration.DownloadSources

Sources in order of preference, where "IPFS" means use IPFS and "HTTPS" means use default gateways. Any other values are interpreted as hostnames for custom gateways. An empty list means "use default sources".

Default: ["HTTPS", "IPFS"]

Migration.Keep

Specifies whether or not to keep the migration after downloading it. Options are "discard", "cache", "pin". Empty string for default.

Default: cache

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 mount point.

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 long-term data storage.

The exposed API conforms to the specification defined at https://ipfs.github.io/pinning-services-api-spec/

Pinning.RemoteServices: API

Contains information relevant to utilizing the remote pinning service

Example:

{
  "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

Pinning.RemoteServices: Policies

Contains additional opt-in policies for the remote pinning service.

Pinning.RemoteServices: Policies.MFS

When this policy is enabled, it follows changes to MFS and updates the pin for MFS root on the configured remote service.

A pin request to the remote service is sent only when MFS root CID has changed and enough time has passed since the previous request (determined by RepinInterval).

One can observe MFS pinning details by enabling debug via ipfs log level remotepinning/mfs debug and switching back to error when done.

Pinning.RemoteServices: Policies.MFS.Enabled

Controls if this policy is active.

Default: false

Type: bool

Pinning.RemoteServices: Policies.MFS.PinName

Optional name to use for a remote pin that represents the MFS root CID. When left empty, a default name will be generated.

Default: "policy/{PeerID}/mfs", e.g. "policy/12.../mfs"

Type: string

Pinning.RemoteServices: Policies.MFS.RepinInterval

Defines how often (at most) the pin request should be sent to the remote service. If left empty, the default interval will be used. Values lower than 1m will be ignored.

Default: "5m"

Type: duration

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 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.

Use-cases:

  • 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 content.

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 very 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": ["/ip4/18.1.1.1/tcp/4001"]
      },
      {
        "ID": "QmPeerID2",
        "Addrs": ["/ip4/18.1.1.2/tcp/4001", "/ip4/18.1.1.2/udp/4001/quic"]
      }
    ]
  }
  ...
}

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 mode.

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.

Example:

{
  "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., 192.168.0.0/16) but you should always check settings against your own network and/or hosting provider.

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 relays.

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 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 EnableRelayHop.

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

REMOVED

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.

Example:

{
  "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 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:

  • /ip4/0.0.0.0/tcp/4001 (default)
  • /ip6/::/tcp/4001 (default)

Swarm.Transports.Network.Websocket

Websocket 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:

  • /ip4/0.0.0.0/tcp/4002/ws
  • /ip6/::/tcp/4002/ws

Swarm.Transports.Network.QUIC

QUIC 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:

  • /ip4/0.0.0.0/udp/4001/quic (default)
  • /ip6/::/udp/4001/quic (default)

Swarm.Transports.Network.Relay

Libp2p Relay 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 transports.

Supported transports are: TLS (priority 100) and Noise (priority 300).

No default priority will ever be less than 100.

Swarm.Transports.Security.TLS

TLS (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

Support for SECIO has been removed. Please remove this option from your config.

Swarm.Transports.Security.Noise

Noise 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:

  • Mplex is a simpler protocol.
  • Mplex is more efficient.
  • Mplex does not have built-in keepalives.
  • Mplex does not support backpressure. Unfortunately, this means that, if a single stream to a peer gets backed up for a period of time, the mplex transport will kill the stream to allow the others to proceed. On the other hand, the lack of backpressure means mplex can be significantly faster on some high-latency connections.

Default: 200

Type: priority

DNS

Options for configuring DNS resolution for DNSLink and /dns* Multiaddrs.

DNS.Resolvers

Map of FQDNs to custom resolver URLs.

This allows for overriding the default DNS resolver provided by the operating system, and using different resolvers per domain or TLD (including ones from alternative, non-ICANN naming systems).

Example:

{
  "DNS": {
    "Resolvers": {
      "eth.": "https://eth.link/dns-query",
      "crypto.": "https://resolver.unstoppable.io/dns-query",
      "libre.": "https://ns1.iriseden.fr/dns-query",
      ".": "https://doh-ch.blahdns.com:4443/dns-query"
    }
  }
}

Be mindful that:

  • Currently only https:// URLs for DNS over HTTPS (DoH) endpoints are supported as values.
  • The default catch-all resolver is the cleartext one provided by your operating system. It can be overriden by adding a DoH entry for the DNS root indicated by . as illustrated above.
  • Out-of-the-box support for selected decentralized TLDs relies on a centralized service which is provided on best-effort basis. The implicit DoH resolvers are: 
    {
  "eth.": "https://resolver.cloudflare-eth.com/dns-query",
  "crypto.": "https://resolver.cloudflare-eth.com/dns-query
}
    To get all the benefits of a decentralized naming system we strongly suggest setting DoH endpoint to an empty string and running own decentralized resolver as catch-all one on localhost.

Default: {}

Type: object[string -> string]