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---
title: About the kernel_parameter Resource
platform: linux
---
# kernel_parameter
Use the `kernel_parameter` InSpec audit resource to test kernel parameters on Linux platforms.
These parameters are located under `/proc/cmdline`.
<br>
## Syntax
A `kernel_parameter` resource block declares a parameter and then a value to be tested:
describe kernel_parameter('path.to.parameter') do
its('value') { should eq 0 }
end
where
* `'kernel.parameter'` must specify a kernel parameter, such as `'net.ipv4.conf.all.forwarding'`
* `{ should eq 0 }` states the value to be tested
<br>
## Examples
The following examples show how to use this InSpec audit resource.
### Test if global forwarding is enabled for an IPv4 address
describe kernel_parameter('net.ipv4.conf.all.forwarding') do
its('value') { should eq 1 }
end
### Test if global forwarding is disabled for an IPv6 address
describe kernel_parameter('net.ipv6.conf.all.forwarding') do
its('value') { should eq 0 }
end
### Test if an IPv6 address accepts redirects
describe kernel_parameter('net.ipv6.conf.interface.accept_redirects') do
its('value') { should cmp 'true' }
end
<br>
## Matchers
For a full list of available matchers, please visit our [matchers page](https://www.inspec.io/docs/reference/matchers/).
Version data entries
5 entries across 5 versions & 1 rubygems