From: Zooko O'Whielacronx Date: Mon, 26 Sep 2011 20:38:01 +0000 (-0700) Subject: docs/configuration.rst: add section about the types of node, and clarify when setting... X-Git-Url: https://git.rkrishnan.org/components/%22news.html/frontends//%22%22?a=commitdiff_plain;h=3a14ad1bb18e741fd706fb02b43eb7a13126283c;p=tahoe-lafs%2Ftahoe-lafs.git docs/configuration.rst: add section about the types of node, and clarify when setting web.port enables web-API service. fixes #1444 --- diff --git a/docs/configuration.rst b/docs/configuration.rst index 15e2d56a..a119ae12 100644 --- a/docs/configuration.rst +++ b/docs/configuration.rst @@ -2,19 +2,20 @@ Configuring a Tahoe-LAFS node ============================= -1. `Overall Node Configuration`_ -2. `Client Configuration`_ -3. `Storage Server Configuration`_ -4. `Frontend Configuration`_ -5. `Running A Helper`_ -6. `Running An Introducer`_ -7. `Other Files in BASEDIR`_ -8. `Other files`_ -9. `Example`_ - -A Tahoe-LAFS node is configured by writing to files in its base -directory. These files are read by the node when it starts, so each time you -change them, you need to restart the node. +1. `Node Types`_ +2. `Overall Node Configuration`_ +3. `Client Configuration`_ +4. `Storage Server Configuration`_ +5. `Frontend Configuration`_ +6. `Running A Helper`_ +7. `Running An Introducer`_ +8. `Other Files in BASEDIR`_ +9. `Other files`_ +10. `Example`_ + +A Tahoe-LAFS node is configured by writing to files in its base directory. +These files are read by the node when it starts, so each time you change +them, you need to restart the node. The node also writes state to its base directory, so it will create files on its own. @@ -51,13 +52,35 @@ The item descriptions below use the following types: ``pb://soklj4y7eok5c3xkmjeqpw@192.168.69.247:44801/eqpwqtzm`` +Node Types +========== + +A node can be a client/server, an introducer, a statistics gatherer, or a +key generator. + +Client/server nodes provide one or more of the following services: + +* web-API service +* SFTP service +* FTP service +* drop-upload service +* helper service +* storage service. + +A client/server that provides storage service (i.e. storing shares for +clients) is called a "storage server". If it provides any of the other +services, it is a "storage client" (a node can be both a storage server and a +storage client). A client/server node that provides web-API service is called +a "gateway". + + Overall Node Configuration ========================== This section controls the network behavior of the node overall: which ports and IP addresses are used, when connections are timed out, etc. This -configuration is independent of the services that the node is offering: the -same controls are used for client and introducer nodes. +configuration applies to all node types and is independent of the services +that the node is offering. If your node is behind a firewall or NAT device and you want other clients to connect to it, you'll need to open a port in the firewall or NAT, and specify @@ -74,14 +97,16 @@ set the ``tub.location`` option described below. ``web.port = (strports string, optional)`` - This controls where the node's webserver should listen, providing - filesystem access and node status as defined in - ``_. This file contains a Twisted "strports" - specification such as "``3456``" or "``tcp:3456:interface=127.0.0.1``". - The "``tahoe create-node``" or "``tahoe create-client``" commands set the - ``web.port`` to "``tcp:3456:interface=127.0.0.1``" by default; this is - overridable by the ``--webport`` option. You can make it use SSL by - writing "``ssl:3456:privateKey=mykey.pem:certKey=cert.pem``" instead. + This controls where the node's web server should listen, providing node + status and, if the node is a client/server, providing web-API service as + defined in `webapi.rst _`. + + This file contains a Twisted "strports" specification such as "``3456``" + or "``tcp:3456:interface=127.0.0.1``". The "``tahoe create-node``" or + "``tahoe create-client``" commands set the ``web.port`` to + "``tcp:3456:interface=127.0.0.1``" by default; this is overridable by the + ``--webport`` option. You can make it use SSL by writing + "``ssl:3456:privateKey=mykey.pem:certKey=cert.pem``" instead. If this is not provided, the node will not run a web server. @@ -340,8 +365,8 @@ Client Configuration Note that this parameter only applies to mutable files. Mutable directories, which are stored as mutable files, are not controlled by - this parameter and will always use SDMF. We may revisit this decision - in future versions of Tahoe-LAFS. + this parameter and will always use SDMF. We may revisit this decision in + future versions of Tahoe-LAFS. Frontend Configuration ====================== @@ -607,10 +632,11 @@ Other files ``access.blacklist`` - Gateway nodes may find it necessary to prohibit access to certain files. The - web-API has a facility to block access to filecaps by their storage index, - returning a 403 "Forbidden" error instead of the original file. For more - details, see the "Access Blacklist" section of ``_. + Gateway nodes may find it necessary to prohibit access to certain + files. The web-API has a facility to block access to filecaps by their + storage index, returning a 403 "Forbidden" error instead of the original + file. For more details, see the "Access Blacklist" section of + ``_. Example