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63 lines
1.5 KiB
Text
63 lines
1.5 KiB
Text
---
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title: About the kernel_parameter Resource
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platform: linux
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---
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# kernel_parameter
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Use the `kernel_parameter` Chef InSpec audit resource to test kernel parameters on Linux platforms.
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These parameters are located under `/proc/cmdline`.
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<br>
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## Availability
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### Installation
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This resource is distributed along with Chef InSpec itself. You can use it automatically.
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### Version
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This resource first became available in v1.0.0 of InSpec.
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## Syntax
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A `kernel_parameter` resource block declares a parameter and then a value to be tested:
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describe kernel_parameter('path.to.parameter') do
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its('value') { should eq 0 }
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end
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where
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* `'kernel.parameter'` must specify a kernel parameter, such as `'net.ipv4.conf.all.forwarding'`
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* `{ should eq 0 }` states the value to be tested
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<br>
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## Examples
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The following examples show how to use this Chef InSpec audit resource.
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### Test if global forwarding is enabled for an IPv4 address
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describe kernel_parameter('net.ipv4.conf.all.forwarding') do
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its('value') { should eq 1 }
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end
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### Test if global forwarding is disabled for an IPv6 address
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describe kernel_parameter('net.ipv6.conf.all.forwarding') do
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its('value') { should eq 0 }
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end
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### Test if an IPv6 address accepts redirects
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describe kernel_parameter('net.ipv6.conf.interface.accept_redirects') do
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its('value') { should cmp 'true' }
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end
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<br>
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## Matchers
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For a full list of available matchers, please visit our [matchers page](https://www.inspec.io/docs/reference/matchers/).
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