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  <div class="section" id="creating-paths-and-listens">
<span id="slony-path"></span><h1><span class="target" id="index-0"></span>Creating paths and listens</h1>
<div class="section" id="create-paths-to-other-nodes">
<span id="path"></span><h2>Create paths to other nodes</h2>
<img alt="_images/slony-path.png" src="_images/slony-path.png" />
<p>Slony-I needs path information, that defines how a slon process can
communicate to other nodes. The conninfo string takes a connect string
as described in the <a class="reference external" href="http://www.postgresql.org/docs/current/static/libpq.html#LIBPQ-CONNECT">libpq connection</a>
documentation. Usually, you will need to specify host, dbname and
username, while the password should be stored in the
<a class="reference external" href="http://www.postgresql.org/docs/current/static/libpq-pgpass.html">.pgpass file</a>.</p>
<p>You must create a path to every other node, on each node. For example, in a two node cluster
you need to create a path to the slave on the master, and one to the master on the slave.</p>
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<span id="listen"></span><h2>Create listens to other nodes</h2>
<img alt="_images/slony-listen.png" src="_images/slony-listen.png" />
<p>After the communication path has been defined, the slon processes need
to be advised to listen to events from other nodes.</p>
<p><strong>Note:</strong> This step is not necessary for Slony-I v1.1 and later, because
listen information is generated automatically when paths are defined.</p>
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