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ReStructuredText
411 lines
12 KiB
ReStructuredText
.. _settings.yml:
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================
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``settings.yml``
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================
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This page describe the options possibilities of the :origin:`searx/settings.yml`
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file.
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.. sidebar:: Further reading ..
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- :ref:`use_default_settings.yml`
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- :ref:`search API`
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.. contents:: Contents
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:depth: 2
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:local:
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:backlinks: entry
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.. _settings location:
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settings.yml location
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=====================
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The initial ``settings.yml`` we be load from these locations:
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1. the full path specified in the ``SEARXNG_SETTINGS_PATH`` environment variable.
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2. ``/etc/searxng/settings.yml``
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If these files don't exist (or are empty or can't be read), SearXNG uses the
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:origin:`searx/settings.yml` file. Read :ref:`settings use_default_settings` to
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see how you can simplify your *user defined* ``settings.yml``.
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.. _settings global:
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Global Settings
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===============
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.. _settings global brand:
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``brand:``
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------------
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.. code:: yaml
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brand:
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issue_url: https://github.com/searxng/searxng/issues
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docs_url: https://searxng/searxng.github.io/searxng
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public_instances: https://searx.space
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wiki_url: https://github.com/searxng/searxng/wiki
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``issue_url`` :
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If you host your own issue tracker change this URL.
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``docs_url`` :
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If you host your own documentation change this URL.
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``public_instances`` :
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If you host your own https://searx.space change this URL.
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``wiki_url`` :
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Link to your wiki (or ``false``)
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.. _settings global general:
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``general:``
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------------
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.. code:: yaml
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general:
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debug: false # Debug mode, only for development
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instance_name: "SearXNG" # displayed name
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contact_url: false # mailto:contact@example.com
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``debug`` : ``$SEARXNG_DEBUG``
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Allow a more detailed log if you run SearXNG directly. Display *detailed* error
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messages in the browser too, so this must be deactivated in production.
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``contact_url``:
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Contact ``mailto:`` address or WEB form.
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.. _settings global server:
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``server:``
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-----------
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.. code:: yaml
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server:
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base_url: false # set custom base_url (or false)
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port: 8888
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bind_address: "127.0.0.1" # address to listen on
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secret_key: "ultrasecretkey" # change this!
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image_proxy: false # proxying image results through SearXNG
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default_locale: "" # default interface locale
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default_theme: oscar # ui theme
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default_http_headers:
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X-Content-Type-Options : nosniff
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X-XSS-Protection : 1; mode=block
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X-Download-Options : noopen
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X-Robots-Tag : noindex, nofollow
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Referrer-Policy : no-referrer
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.. sidebar:: buildenv
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Changing a value tagged by :ref:`buildenv <make buildenv>`, needs to
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rebuild instance's environment :ref:`utils/brand.env <make buildenv>`.
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``base_url`` : :ref:`buildenv SEARXNG_URL <make buildenv>`
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The base URL where SearXNG is deployed. Used to create correct inbound links.
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If you change the value, don't forget to rebuild instance's environment
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(:ref:`utils/brand.env <make buildenv>`)
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``port`` & ``bind_address``: :ref:`buildenv SEARXNG_PORT & SEARXNG_BIND_ADDRESS <make buildenv>`
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Port number and *bind address* of the SearXNG web application if you run it
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directly using ``python searx/webapp.py``. Doesn't apply to SearXNG running on
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Apache or Nginx.
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``secret_key`` : ``$SEARXNG_SECRET``
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Used for cryptography purpose.
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``image_proxy`` :
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Allow your instance of SearXNG of being able to proxy images. Uses memory space.
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``default_locale`` :
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SearXNG interface language. If blank, the locale is detected by using the
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browser language. If it doesn't work, or you are deploying a language
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specific instance of searx, a locale can be defined using an ISO language
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code, like ``fr``, ``en``, ``de``.
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``default_theme`` :
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Name of the theme you want to use by default on your SearXNG instance.
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.. _HTTP headers: https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers
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``default_http_headers``:
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Set additional HTTP headers, see `#755 <https://github.com/searx/searx/issues/715>`__
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``outgoing:``
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-------------
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Communication with search engines.
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.. code:: yaml
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outgoing:
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request_timeout: 2.0 # default timeout in seconds, can be override by engine
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max_request_timeout: 10.0 # the maximum timeout in seconds
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useragent_suffix: "" # informations like an email address to the administrator
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pool_connections: 100 # Maximum number of allowable connections, or null
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# for no limits. The default is 100.
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pool_maxsize: 10 # Number of allowable keep-alive connections, or null
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# to always allow. The default is 10.
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enable_http2: true # See https://www.python-httpx.org/http2/
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# uncomment below section if you want to use a proxy
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# proxies:
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# all://:
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# - http://proxy1:8080
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# - http://proxy2:8080
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# uncomment below section only if you have more than one network interface
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# which can be the source of outgoing search requests
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# source_ips:
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# - 1.1.1.1
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# - 1.1.1.2
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# - fe80::/126
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``request_timeout`` :
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Global timeout of the requests made to others engines in seconds. A bigger
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timeout will allow to wait for answers from slow engines, but in consequence
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will slow SearXNG reactivity (the result page may take the time specified in the
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timeout to load). Can be override by :ref:`settings engine`
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``useragent_suffix`` :
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Suffix to the user-agent SearXNG uses to send requests to others engines. If an
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engine wish to block you, a contact info here may be useful to avoid that.
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``keepalive_expiry``:
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Number of seconds to keep a connection in the pool. By default 5.0 seconds.
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.. _httpx proxies: https://www.python-httpx.org/advanced/#http-proxying
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``proxies`` :
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Define one or more proxies you wish to use, see `httpx proxies`_.
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If there are more than one proxy for one protocol (http, https),
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requests to the engines are distributed in a round-robin fashion.
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``source_ips`` :
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If you use multiple network interfaces, define from which IP the requests must
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be made. Example:
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* ``0.0.0.0`` any local IPv4 address.
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* ``::`` any local IPv6 address.
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* ``192.168.0.1``
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* ``[ 192.168.0.1, 192.168.0.2 ]`` these two specific IP addresses
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* ``fe80::60a2:1691:e5a2:ee1f``
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* ``fe80::60a2:1691:e5a2:ee1f/126`` all IP addresses in this network.
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* ``[ 192.168.0.1, fe80::/126 ]``
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``retries`` :
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Number of retry in case of an HTTP error. On each retry, SearXNG uses an
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different proxy and source ip.
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``retry_on_http_error`` :
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Retry request on some HTTP status code.
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Example:
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* ``true`` : on HTTP status code between 400 and 599.
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* ``403`` : on HTTP status code 403.
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* ``[403, 429]``: on HTTP status code 403 and 429.
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``enable_http2`` :
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Enable by default. Set to ``false`` to disable HTTP/2.
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``max_redirects`` :
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30 by default. Maximum redirect before it is an error.
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.. _settings engine:
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Engine settings
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===============
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.. sidebar:: Further reading ..
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- :ref:`configured engines`
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- :ref:`engines-dev`
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In the code example below a *full fledged* example of a YAML setup from a dummy
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engine is shown. Most of the options have a default value or even are optional.
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.. code:: yaml
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- name: example engine
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engine: example
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shortcut: demo
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base_url: 'https://{language}.example.com/'
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categories: general
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timeout: 3.0
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api_key: 'apikey'
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disabled: false
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language: en_US
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tokens: [ 'my-secret-token' ]
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weigth: 1
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display_error_messages: true
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about:
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website: https://example.com
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wikidata_id: Q306656
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official_api_documentation: https://example.com/api-doc
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use_official_api: true
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require_api_key: true
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results: HTML
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enable_http: false
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enable_http2: false
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retries: 1
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retry_on_http_error: true # or 403 or [404, 429]
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max_connections: 100
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max_keepalive_connections: 10
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keepalive_expiry: 5.0
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proxies:
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http:
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- http://proxy1:8080
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- http://proxy2:8080
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https:
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- http://proxy1:8080
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- http://proxy2:8080
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- socks5://user:password@proxy3:1080
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- socks5h://user:password@proxy4:1080
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``name`` :
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Name that will be used across SearXNG to define this engine. In settings, on
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the result page...
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``engine`` :
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Name of the python file used to handle requests and responses to and from this
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search engine.
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``shortcut`` :
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Code used to execute bang requests (in this case using ``!bi`` or ``?bi``)
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``base_url`` : optional
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Part of the URL that should be stable across every request. Can be useful to
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use multiple sites using only one engine, or updating the site URL without
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touching at the code.
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``categories`` : optional
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Define in which categories this engine will be active. Most of the time, it is
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defined in the code of the engine, but in a few cases it is useful, like when
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describing multiple search engine using the same code.
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``timeout`` : optional
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Timeout of the search with the current search engine. **Be careful, it will
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modify the global timeout of SearXNG.**
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``api_key`` : optional
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In a few cases, using an API needs the use of a secret key. How to obtain them
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is described in the file.
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``disabled`` : optional
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To disable by default the engine, but not deleting it. It will allow the user
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to manually activate it in the settings.
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``language`` : optional
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If you want to use another language for a specific engine, you can define it
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by using the full ISO code of language and country, like ``fr_FR``, ``en_US``,
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``de_DE``.
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``tokens`` : optional
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A list of secret tokens to make this engine *private*, more details see
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:ref:`private engines`.
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``weigth`` : default ``1``
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Weighting of the results of this engine.
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``display_error_messages`` : default ``true``
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When an engine returns an error, the message is displayed on the user interface.
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``network``: optional
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Use the network configuration from another engine.
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In addition, there are two default networks:
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* ``ipv4`` set ``local_addresses`` to ``0.0.0.0`` (use only IPv4 local addresses)
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* ``ipv6`` set ``local_addresses`` to ``::`` (use only IPv6 local addresses)
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.. note::
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A few more options are possible, but they are pretty specific to some
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engines, and so won't be described here.
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.. _settings use_default_settings:
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use_default_settings
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====================
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.. sidebar:: ``use_default_settings: true``
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- :ref:`settings location`
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- :ref:`use_default_settings.yml`
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- :origin:`/etc/searxng/settings.yml <utils/templates/etc/searxng/settings.yml>`
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The user defined ``settings.yml`` is loaded from the :ref:`settings location`
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and can relied on the default configuration :origin:`searx/settings.yml` using:
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``use_default_settings: true``
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``server:``
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In the following example, the actual settings are the default settings defined
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in :origin:`searx/settings.yml` with the exception of the ``secret_key`` and
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the ``bind_address``:
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.. code-block:: yaml
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use_default_settings: true
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server:
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secret_key: "ultrasecretkey" # change this!
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bind_address: "0.0.0.0"
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``engines:``
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With ``use_default_settings: true``, each settings can be override in a
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similar way, the ``engines`` section is merged according to the engine
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``name``. In this example, SearXNG will load all the engine and the arch linux
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wiki engine has a :ref:`token <private engines>`:
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.. code-block:: yaml
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use_default_settings: true
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server:
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secret_key: "ultrasecretkey" # change this!
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engines:
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- name: arch linux wiki
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tokens: ['$ecretValue']
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``engines:`` / ``remove:``
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It is possible to remove some engines from the default settings. The following
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example is similar to the above one, but SearXNG doesn't load the the google
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engine:
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.. code-block:: yaml
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use_default_settings:
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engines:
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remove:
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- google
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server:
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secret_key: "ultrasecretkey" # change this!
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engines:
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- name: arch linux wiki
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tokens: ['$ecretValue']
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``engines:`` / ``keep_only:``
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As an alternative, it is possible to specify the engines to keep. In the
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following example, SearXNG has only two engines:
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.. code-block:: yaml
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use_default_settings:
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engines:
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keep_only:
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- google
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- duckduckgo
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server:
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secret_key: "ultrasecretkey" # change this!
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engines:
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- name: google
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tokens: ['$ecretValue']
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- name: duckduckgo
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tokens: ['$ecretValue']
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