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i2pd_docs_en/docs/user-guide/configuration.md

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i2pd configuration
==================
i2pd can be configured via either command-line arguments or config files.
Modifying `i2pd.conf` is just a way of passing command line arguments to i2pd at boot;
for example, running i2pd with argument `--port=10123` and setting option `port = 10123` in config file will have
the same effect.
There are two separate config files: `i2pd.conf` and `tunnels.conf`. `i2pd.conf` is the main configuration file, where
you configure all options. `tunnels.conf` is the tunnel configuration file, where you configure I2P hidden services
and client tunnels. the `tunnels.conf` options are documented [here](tunnels.md).
`i2pd.conf` accepts INI-like syntax, such as the following : <key> = <value>.
Comments are "#", not ";" as you might expect. See [boost ticket](https://svn.boost.org/trac/boost/ticket/808)
All command-line parameters are allowed as keys, but for those which contains dot (.), there is a special syntax.
For example:
i2pd.conf:
# comment
log = true # use stdout (default)
ipv6 = true
# settings for specific module
[httpproxy]
port = 4444
# ^^ this will be --httproxy.port= in cmdline
# another comment
[sam]
enabled = true
You are also encouraged to see the commented config with examples of all options in ``contrib/i2pd.conf``.
Options specified on the command line take precedence over those in the config file.
If you are upgrading your very old router (< 2.3.0) see also [this](config_opts_after_2.3.0.md) page.
Available options
-----------------
Run `./i2pd --help` to show builtin help message (default value of option will be shown in braces)
### General options
Option | Description
-------------------------------------- | --------------------------------------
conf | Config file (default: ~/.i2pd/i2pd.conf or /var/lib/i2pd/i2pd.conf). This parameter will be silently ignored if the specified config file does not exist.
tunconf | Tunnels config file (default: ~/.i2pd/tunnels.conf or /var/lib/i2pd/tunnels.conf)
pidfile | Where to write pidfile (default: i2pd.pid, not used in Windows)
log | Logs destination: stdout, file, syslog (stdout if not set or invalid) (if daemon, stdout/unspecified are replaced by file in some cases)
logfile | Path to logfile (default - autodetect)
loglevel | Log messages above this level (debug, info, warn, error, none; default - info)
logclftime | Write full CLF-formatted date and time to log (default: write only time)
datadir | Path to storage of i2pd data (RI, keys, peer profiles, ...)
host | Router external IP for incoming connections
port | Port to listen for incoming connections (default: auto)
daemon | Router will go to background after start
service | Router will use system folders like '/var/lib/i2pd'
ifname | Network interface to bind to
ifname4 | Network interface to bind to for IPv4
ifname6 | Network interface to bind to for IPv6
address4 | Local address to bind to for IPv4
address6 | Local address to bind to for IPv6
nat | If true, assume we are behind NAT. true by default
ipv4 | Enable communication through IPv4. true by default
ipv6 | Enable communication through IPv6. false by default
notransit | Router will not accept transit tunnels, disabling transit traffic completely. false by default
floodfill | Router will be floodfill. false by default
bandwidth | Bandwidth limit: integer in KBps or letters: L (32), O (256), P (2048), X (>9000)
share | Max % of bandwidth limit for transit. 0-100. 100 by default
family | Name of a family, router belongs to
netid | Network ID, router belongs to. Main I2P is 2.
ssu | Enable SSU transport protocol (use UDP). true by default
#### Notes
`datadir` and `service` options are only used as arguments for i2pd, these options have no effect when set in `i2pd.conf`.
### Windows-specific options
Option | Description
-------------------------------------- | --------------------------------------
svcctl | Windows service management (--svcctl="install" or --svcctl="remove")
insomnia | Prevent system from sleeping
close | Action on close: minimize, exit, ask
All options below still possible in cmdline, but better write it in config file:
### HTTP webconsole
Option | Description
-------------------------------------- | --------------------------------------
http.enabled | If webconsole is enabled. true by default
http.address | The address to listen on (HTTP server)
http.port | The port to listen on (HTTP server) 7070 by default
http.auth | Enable basic HTTP auth for webconsole
http.user | Username for basic auth (default: i2pd)
http.pass | Password for basic auth (default: random, see logs)
http.strictheaders | Enable strict host checking on WebUI. true by default
http.hostname | Expected hostname for WebUI (default: localhost)
### HTTP proxy
Option | Description
-------------------------------------- | --------------------------------------
httpproxy.enabled | If HTTP proxy is enabled. true by default
httpproxy.address | The address to listen on (HTTP Proxy)
httpproxy.port | The port to listen on (HTTP Proxy) 4444 by default
httpproxy.addresshelper | Enable address helper (jump). true by default
httpproxy.keys | Optional keys file for HTTP proxy local destination
httpproxy.signaturetype | Signature type for new keys if keys file is set. 7 by default
httpproxy.inbound.length | Inbound tunnels length if keys is set. 3 by default
httpproxy.inbound.quantity | Inbound tunnels quantity if keys is set. 5 by default
httpproxy.inbound.lengthVariance | Inbound tunnels length variance if keys is set. 0 by default
httpproxy.outbound.length | Outbound tunnels length if keys is set. 3 by default
httpproxy.outbound.quantity | Outbound tunnels quantity if keys is set. 5 by default
httpproxy.outbound.lengthVariance | Outbound tunnels length variance if keys is set. 0 by default
httpproxy.outproxy | HTTP proxy upstream out proxy url (like http://false.i2p)
httpproxy.i2cp.leaseSetType | Type of LeaseSet to be sent. 1, 3 or 5. 1 by default
httpproxy.i2cp.leaseSetEncType | Comma separated encryption types to be used in LeaseSet type 3 or 5
### Socks proxy
Option | Description
-------------------------------------- | --------------------------------------
socksproxy.enabled | If SOCKS proxy is enabled. true by default
socksproxy.address | The address to listen on (SOCKS Proxy)
socksproxy.port | The port to listen on (SOCKS Proxy). 4447 by default
socksproxy.keys | Optional keys file for SOCKS proxy local destination
socksproxy.signaturetype | Signature type for new keys if keys file is set. 7 by default
socksproxy.inbound.length | Inbound tunnels length if keys is set. 3 by default
socksproxy.inbound.quantity | Inbound tunnels quantity if keys is set. 5 by default
socksproxy.inbound.lengthVariance | Inbound tunnels length variance if keys is set. 0 by default
socksproxy.outbound.length | Outbound tunnels length if keys is set. 3 by default
socksproxy.outbound.quantity | Outbound tunnels quantity if keys is set. 5 by default
socksproxy.outbound.lengthVariance | Outbound tunnels length variance if keys is set. 0 by default
socksproxy.outproxy.enabled | Enable or disable SOCKS outproxy. Disabled by default
socksproxy.outproxy | Address of outproxy. requests outside I2P will go there
socksproxy.outproxyport | Outproxy remote port
socksproxy.i2cp.leaseSetType | Type of LeaseSet to be sent. 1, 3 or 5. 1 by default
socksproxy.i2cp.leaseSetEncType | Comma separated encryption types to be used in LeaseSet type 3 or 5
### SAM interface
Option | Description
-------------------------------------- | --------------------------------------
sam.address | The address to listen on (SAM bridge)
sam.port | Port of SAM bridge. Usually 7656. SAM is off if not specified
sam.enabled | If SAM is enabled. true by default
sam.singlethread | If false every SAM session runs in own thread. true by default
### BOB interface
Option | Description
-------------------------------------- | --------------------------------------
bob.address | The address to listen on (BOB command channel)
bob.port | Port of BOB command channel. Usually 2827. BOB is off if not specified
bob.enabled | If BOB is enabled. false by default
### I2CP interface
Option | Description
-------------------------------------- | --------------------------------------
i2cp.address | The address to listen on or an abstract address for Android LocalSocket
i2cp.port | Port of I2CP server. Usually 7654. Ignored for Andorid
i2cp.enabled | If I2CP is enabled. false by default. Other services don't require I2CP
i2cp.singlethread | If false every I2CP session runs in own thread. true by default
### I2PControl interface
Option | Description
-------------------------------------- | --------------------------------------
i2pcontrol.address | The address to listen on (I2P control service)
i2pcontrol.port | Port of I2P control service. Usually 7650. I2PControl is off if not specified
i2pcontrol.enabled | If I2P control is enabled. false by default
i2pcontrol.password | I2P control authentication password. itoopie by default
i2pcontrol.cert | I2P control HTTPS certificate file name. i2pcontrol.crt.pem by default
i2pcontrol.key | I2P control HTTPS certificate key file name. i2pcontrol.key.pem by default
### UPNP
Option | Description
-------------------------------------- | --------------------------------------
upnp.enabled | Enable or disable UPnP, false by default for CLI and true for GUI (Windows, Android)
upnp.name | Name i2pd appears in UPnP forwardings list. I2Pd by default
### Cryptography
Option | Description
-------------------------------------- | --------------------------------------
precomputation.elgamal | Use ElGamal precomputated tables. false for x64 and true for other platforms by default
### Reseeding
Option | Description
-------------------------------------- | --------------------------------------
reseed.verify | Verify .su3 signature. false by default
reseed.urls | Reseed URLs, separated by comma
reseed.yggurls | Reseed Yggdrasil's URLs, separated by comma
reseed.file | Path to local .su3 file or HTTPS URL to reseed from
reseed.zipfile | Path to local .zip file to reseed from
reseed.threshold | Minimum number of known routers before requesting reseed. 25 by default
reseed.proxy | Url for https/socks reseed proxy
### Addressbook options
Option | Description
-------------------------------------- | --------------------------------------
addressbook.defaulturl | AddressBook subscription URL. Only used to initialize the AddressBook.
addressbook.subscriptions | AddressBook subscriptions URLs, separated by comma. Note that defaulturl is not added to subscriptions URLs
addressbook.hostsfile | File to dump AddressesBook in hosts.txt format
### Limits
Option | Description
-------------------------------------- | --------------------------------------
limits.transittunnels | Override maximum number of transit tunnels. 2500 by default
limits.openfiles | Limit number of open file descriptors (0 - use system limit)
limits.coresize | Maximum size of corefile in Kb (0 - use system limit)
limits.ntcpsoft | Threshold to start probabalistic backoff with ntcp sessions (0 - use system limit)
limits.ntcphard | Maximum number of ntcp sessions (0 - use system limit)
### Trust options
Option | Description
-------------------------------------- | --------------------------------------
trust.enabled | Enable explicit trust options. false by default
trust.family | Make direct I2P connections only to routers in specified Family.
trust.routers | Make direct I2P connections only to routers specified here. Comma separated list of base64 identities.
trust.hidden | Should we hide our router from other routers? false by default
### Websocket server
Option | Description
-------------------------------------- | --------------------------------------
websockets.enabled | Enable websocket server. Disabled by default
websockets.address | Address to bind websocket server on. 127.0.0.1 by default
websockets.port | Port to bind websocket server on. 7666 by default
### Exploratory tunnels
Option | Description
-------------------------------------- | --------------------------------------
exploratory.inbound.length | Exploratory inbound tunnels length. 2 by default
exploratory.inbound.quantity | Exploratory inbound tunnels quantity. 3 by default
exploratory.outbound.length | Exploratory outbound tunnels length. 2 by default
exploratory.outbound.quantity | Exploratory outbound tunnels length. 3 by default
### NTCP2
Option | Description
-------------------------------------- | --------------------------------------
ntcp2.enabled | Enable NTCP2. Enabled by default
ntcp2.published | Enable incoming NTCP2 connections. Enabled by default
ntcp2.port | Port to listen for incoming NTCP2 connections (default: auto)
ntcp2.addressv6 | External IPv6 for incoming connections
ntcp2.proxy | Specify proxy server for NTCP2. Should be http://address:port or socks://address:port
### Time sync
Option | Description
-------------------------------------- | --------------------------------------
nettime.enabled | Enable NTP sync. Disabled by default
nettime.ntpservers | Comma-separated list of NTP server. pool.ntp.org by default
nettime.ntpsyncinterval | NTP time sync interval in hours. 72 by default
### Network information persist
Option | Description
-------------------------------------- | --------------------------------------
persist.profiles | Enable peer profile persisting to disk. Enabled by default
### Meshnets transports
Option | Description
-------------------------------------- | --------------------------------------
meshnets.yggdrasil | Support transports through the Yggdrasil
meshnets.yggaddress | Local Yggdrasil's address to publish
Local addressbook
-----------------
There is also a special addressbook config file in the working directory at `addressbook/local.csv`.
It is used to map long I2P destinations to short, human readable domain names. The syntax is csv and
it can be modified manually if the user wishes.
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