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86 lines
2.3 KiB
Text
86 lines
2.3 KiB
Text
---
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title: About the host Resource
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platform: os
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---
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# host
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Use the `host` InSpec audit resource to test the name used to refer to a specific host and its availability, including the Internet protocols and ports over which that host name should be available.
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<br>
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## Syntax
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A `host` resource block declares a host name, and then (depending on what is to be tested) a port and/or a protocol:
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describe host('example.com', port: 80, protocol: 'tcp') do
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it { should be_reachable }
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it { should be_resolvable }
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its('ipaddress') { should include '12.34.56.78' }
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end
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where
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* `host()` must specify a host name and may specify a port number and/or a protocol
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* `'example.com'` is the host name
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* `port:` is the port number
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* `protocol: 'name'` is the Internet protocol: TCP (`protocol: 'tcp'`), UDP (`protocol: 'udp'` or ICMP (`protocol: 'icmp'`))
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<br>
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## Resource Properties
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* `connection`, `ipaddress`, `protocol`, `socket`
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<br>
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## Resource Examples
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The following examples show how to use this InSpec audit resource.
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### ipaddress
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The `ipaddress` matcher tests if a host name is resolvable to a specific IP address:
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describe host('example.com') do
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its('ipaddress') { should include '93.184.216.34' }
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end
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### Verify host name is reachable over a specific protocol and port number
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describe host('example.com', port: 80, protocol: 'tcp') do
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it { should be_reachable }
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end
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### Verify that a specific IP address can be resolved
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describe host('example.com') do
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it { should be_resolvable }
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its('ipaddress') { should include '93.184.216.34' }
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end
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### Review the connection setup and socket contents when checking reachability
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describe host('example.com', port: 12345, protocol: 'tcp') do
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it { should be_reachable }
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its('connection') { should_not match /connection refused/ }
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its('socket') { should match /STATUS_OK/ }
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end
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<br>
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## Matchers
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This InSpec audit resource has the following special matchers. For a full list of available matchers, please visit our [matchers page](https://www.inspec.io/docs/reference/matchers/).
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### be_reachable
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The `be_reachable` matcher tests if the host name is available:
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it { should be_reachable }
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### be_resolvable
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The `be_resolvable` matcher tests for host name resolution, i.e. "resolvable to an IP address":
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it { should be_resolvable }
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