inspec/docs/resources/etc_hosts_deny.md.erb
Clinton Wolfe 2de06bdeb5 Clean injection of Availability section (#3206)
Signed-off-by: Clinton Wolfe <clintoncwolfe@gmail.com>
2018-08-09 08:34:49 -04:00

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---
title: About the etc_hosts_deny Resource
platform: linux
---
# etc\_hosts\_deny
Use the `etc_hosts_deny` InSpec audit resource to test rules for rejecting daemon and client traffic defined in /etc/hosts.deny.
<br>
## Availability
### Installation
This resource is distributed along with InSpec itself. You can use it automatically.
### Version
This resource first became available in v1.39.1 of InSpec.
## Syntax
An etc/hosts.deny rule specifies one or more daemons mapped to one or more clients, with zero or more options for rejecting traffic when found.
Use the where clause to match a property to one or more rules in the hosts.deny file:
describe etc_hosts_deny.where { daemon == 'value' } do
its ('client_list') { should include ['values'] }
its ('options') { should include ['values'] }
end
Use the optional constructor parameter to give an alternative path to hosts.deny:
describe etc_hosts_deny(hosts_path).where { daemon == 'value' } do
its ('client_list') { should include ['values'] }
its ('options') { should include ['values'] }
end
where
* `daemon` is a daemon that will be rejected to pass traffic in.
* `client_list` is a list of clients will be rejected to pass traffic in.
* `options` is a list of tasks that to be done with the rule when traffic is found.
<br>
## Properties
'daemon', 'client_list', 'options'
<br>
## Parameter Examples
### daemon
`daemon` returns a string containing the daemon that is allowed in the rule.
describe etc_hosts_deny.where { client_list == ['127.0.1.154', '[:fff:fAb0::]'] } do
its('daemon') { should eq ['vsftpd', 'sshd'] }
end
### client_list
`client_list` returns a 2d string array where each entry contains the clients specified for the rule.
describe etc_hosts_deny.where { daemon == 'sshd' } do
its('client_list') { should include ['192.168.0.0/16', '[abcd::0000:1234]'] }
end
### options
`options` returns a 2d string array where each entry contains any options specified for the rule.
describe etc_hosts_deny.where { daemon == 'sshd' } do
its('options') { should include ['deny', 'echo "REJECTED"'] }
end
<br>
## Matchers
For a full list of available matchers, please visit our [matchers page](https://www.inspec.io/docs/reference/matchers/).