---
description: |-
  Consul is a highly available and distributed service discovery and key-value
  store designed with support for the modern data center to make distributed
  systems and configuration easy.
---

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        <h2 class="rls-l">
          Service discovery and configuration made easy.
        </h2>
        <p class="lead">
          Distributed, highly available, and
          datacenter-aware.
        </p>
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        <h2 class="rls-l">
          Service discovery and configuration made easy.
          Distributed, highly available, and
          datacenter-aware.
        </h2>
      </div>
      <div class="jumbo-logo-wrap col-lg-offset-1 col-lg-5 col-md-6 hidden-xs hidden-sm">
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      <!-- <p><a class="btn btn-primary btn-lg">Learn more &raquo;</a></p> -->
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            <span class="icn discovery"></span>
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            <h2>Service Discovery</h2>
            <p>
              Consul makes it simple for services to register themselves
              and to discover other services via a DNS or HTTP interface.
              Register external services such as SaaS providers as well.
            </p>
          </div>
        </div>
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            <span class="icn health"></span>
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            <h2>Failure Detection</h2>
            <p>Pairing service discovery with health checking prevents routing requests to unhealthy hosts and enables services to easily provide circuit breakers.</p>
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            <span class="icn multi"></span>
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            <h2>Multi Datacenter</h2>
            <p>Consul scales to multiple datacenters out of the box with no complicated configuration. Look up services in other datacenters, or keep the request local.</p>
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            <span class="icn config"></span>
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            <h2>Key/Value Storage</h2>
            <p>Flexible key/value store for dynamic configuration, feature flagging, coordination, leader election and more. Long poll for near-instant notification of configuration changes.</p>
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        <h2>DNS Query Interface</h2>
        <p>
          Look up services using Consul's built-in DNS server. Support
          existing infrastructure without any code change.
        </p>
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        <div class="terminal">
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            <h4>Terminal</h4>
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          <div class="terminal-window">
            <div class="terminal">
              <div class="display">
                <p class="command"><span class="txt-r">admin@hashicorp</span>: dig web-frontend.service.consul. ANY</p>
                <p>; &lt;&lt;&gt;&gt; DiG 9.8.3-P1 &lt;&lt;&gt;&gt; web-frontend.service.consul. ANY</p>
                <p>;; global options: +cmd</p>
                <p> </p>
                <p>;; Got answer:</p>
                <p>;; -&gt;&gt;HEADER&lt;&lt;- opcode: QUERY, status: NOERROR, id: 29981</p>
                <p>;; flags: qr aa rd ra; QUERY: 1, ANSWER: 2, AUTHORITY: 0, ADDITIONAL: 0</p>
                <p> </p>
                <p>;; QUESTION SECTION:</p>
                <p>;web-frontend.service.consul. IN ANY</p>
                <p> </p>
                <p>;; ANSWER SECTION:</p>
                <p>web-frontend.service.consul. 0 IN  A <span class="txt-p">10.0.3.83</span></p>
                <p>web-frontend.service.consul. 0 IN  A <span class="txt-p">10.0.1.109</span></p>
                <p class="command"><span class="txt-r">admin@hashicorp</span>: <span class="cursor">&nbsp;</span></p>
              </div>
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      <div class="col-xs-12 col-lg-12 explantion">
        <h2>Key Value Storage</h2>
        <p>
          Consul provides a hierarchical key/value store with a simple HTTP API.
          Managing configuration has never been simpler.
        </p>
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            <h4>Terminal</h4>
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              <div class="display">
                <p class="command"><span class="txt-r">admin@hashicorp</span>: consul kv put foo bar</p>
                <p>Success! Data written to: foo</p>
                <p class="command"><span class="txt-r">admin@hashicorp</span>: consul kv get foo</p>
                <p>bar</p>
                <p class="command"><span class="txt-r">admin@hashicorp</span>: consul kv get -detailed foo</p>
                <p>CreateIndex      5</p>
                <p>Flags            0</p>
                <p>Key              foo</p>
                <p>LockIndex        0</p>
                <p>ModifyIndex      5</p>
                <p>Session          -</p>
                <p>Value            bar</p>
                <p class="command"><span class="txt-r">admin@hashicorp</span>: consul kv delete foo</p>
                <p>Success! Deleted key: foo</p>
                <p class="command"><span class="txt-r">admin@hashicorp</span>: <span class="cursor">&nbsp;</span></p>
              </div>
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      <div class="intro">
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          <p>The intro and getting started guide contain
            a simple and approachable walkthrough for running Consul locally.
          </p>
        </div>
        <div class="col-xs-12 col-sm-6 col-sm-offset-0 right">
          <a class="outline-btn purple" href="/intro/index.html">Read the intro &#187;</a>
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