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93 lines
2.4 KiB
Text
93 lines
2.4 KiB
Text
---
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title: About the sshd_config Resource
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platform: linux
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---
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# sshd_config
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Use the `sshd_config` Chef InSpec audit resource to test configuration data for the OpenSSH daemon located at `/etc/ssh/sshd_config` on Linux and Unix platforms. sshd---the OpenSSH daemon---listens on dedicated ports, starts a daemon for each incoming connection, and then handles encryption, authentication, key exchanges, command execution, and data exchanges.
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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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An `sshd_config` resource block declares the client OpenSSH configuration data to be tested:
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describe sshd_config('path') do
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its('name') { should include('foo') }
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end
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where
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* `name` is a configuration setting in `sshd_config`
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* `('path')` is the non-default `/path/to/sshd_config`
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* `{ should include('foo') }` tests the value of `name` as read from `sshd_config` versus the value declared in the test
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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 which variables may be sent to the server
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describe sshd_config do
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its('AcceptEnv') { should include('GORDON_SERVER') }
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end
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### Test for IPv6-only addresses
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describe sshd_config do
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its('AddressFamily') { should cmp 'inet6' }
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end
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### Test the Protocol setting
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describe sshd_config do
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its('Protocol') { should cmp 2 }
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end
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### Test for approved, strong ciphers
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describe sshd_config do
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its('Ciphers') { should cmp('chacha20-poly1305@openssh.com,aes256-ctr,aes192-ctr,aes128-ctr') }
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end
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### Test SSH protocols
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describe sshd_config do
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its('Port') { should cmp 22 }
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its('UsePAM') { should eq 'yes' }
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its('ListenAddress') { should eq nil }
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its('HostKey') { should eq [
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'/etc/ssh/ssh_host_rsa_key',
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'/etc/ssh/ssh_host_dsa_key',
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'/etc/ssh/ssh_host_ecdsa_key',
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] }
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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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### name
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The `name` matcher tests the value of `name` as read from `sshd_config` versus the value declared in the test:
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its('name') { should cmp 'foo' }
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or:
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its('name') {should include('bar') }
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