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sshd (11) Versions 3.0.0

Installs/Configures sshd

Berkshelf
Policyfile
Knife
cookbook 'sshd', '~> 3.0.0'
cookbook 'sshd', '~> 3.0.0', :supermarket
knife supermarket install sshd
knife supermarket download sshd
README
Dependencies
Quality 50%

sshd Cookbook

Cookbook Version

Description

This cookbook maintains the openssh server.

Unlike other sshd cookbooks, this cookbook respects the default settings of the current operating systems, unless these settings are explicitly overwritten.

This cookbook takes (or at least tries to) the default sshd configruation of the distribution you are using as a default. Then you can overwrite specific settings.

See below for the default settings.

Attributes

You can specify the package that installs sshd, using the following attribute. There's defaults for most linux distributions.

node['sshd']['package']      # Package to install openssh-server

The following settings will be filled in using the defaults of the distribution you're using, unless you overwrite it in your node configuration / resource

node['sshd']['sshd_path']        # Path to sshd executable
node['sshd']['config_file']      # Path to sshd_config
node['sshd']['sshd_config_mode'] # File mode of sshd_config
node['sshd']['service_name']     # OpenSSH service name

You can specify every configuration option that openssh-server supports in the sshd_config attribute. The settings you specify will be merged with the distributions default settings.

node['sshd']['sshd_config']['Port'] = 22

Conditional blocks are defined using hashes

node['sshd']['sshd_config']['Match']['User fred']['X11Forwarding'] = 'no'
node['sshd']['sshd_config']['Match'] = {
  'User john' => {
    'ChrootDirectory' => '/srv',
    'ForceCommand' => 'internal-sftp',
    'AllowTcpForwarding' => 'no',
    'X11Forwarding' => 'no'
  }
}

Some configuration options can be specified multiple times. You can reflect this using an array

node['sshd']['sshd_config']['HostKey'] = %w(key1 key2)

Recipes

default

Runs the install recipe, then configures openssh-server according to the node attributes.

install

Just installs openssh-server without configuring it, as well as enabling and starting the daemon.

Resources

You can also maintain openssh-server using the resource. This is the recommended way.

To use the resource, make sure your metadata.rb includes

depends 'sshd'

openssh_server

To install and configure openssh-server from other recipes, use the following resource:

sshd_server node['sshd']['config_file']

or, if you need a configuration which differs from the default

sshd_server '/etc/sshd_config' do
  sshd_config(
    Port: 1234,
    X11Forward: 'no'
  )
end

The resource accepts all configuration options sshd_config supports.

sshd_server node['sshd']['config_file'] do
  sshd_config(
    Port:        1234
    X11Forward:  'yes'

    # To specify an option multiple times, use an array
    HostKey:     %w(/etc/ssh/ssh_host_dsa_key /etc/ssh/ssh_host_rsa_key)

    # For conditional blocks, use a hash
    Match:       {
                    'User fred' => { 'X11Forwarding' => 'no' },
                    'User john' => {
                      'ChrootDirectory' => '/srv',
                      'ForceCommand' => 'internal-sftp',
                      'AllowTcpForwarding' => 'no',
                      'X11Forwarding' => 'no'
                    }
                 }
end

In case you need it, you can also use a custom template to use for sshd_config

sshd_server node['sshd']['config_file'] do
  cookbook 'mycookbook'
  source   'mytemplate.erb'
end

Default sshd_config settings

The following options are set by default

Port 22
Protocol 2
AcceptEnv LANG LC_*
HostKey /etc/ssh/ssh_host_ed25519_key
HostKey /etc/ssh/ssh_host_rsa_key
HostKey /etc/ssh/ssh_host_dsa_key
HostKey /etc/ssh/ssh_host_ecdsa_key
PasswordAuthentication yes
ChallengeResponseAuthentication no
X11Forwarding yes
UsePAM yes

Plus, on debian/ubuntu machines

SyslogFacility AUTH
GSSAPIAuthentication no
Subsystem sftp /usr/lib/openssh/sftp-server

And on centos/compatible machines

SyslogFacility AUTHPRIV
GSSAPIAuthentication yes
Subsystem sftp /usr/libexec/openssh/sftp-server

Contributing

You fixed a bug, or added a new feature? Yippie!

  1. Fork the repository on Github
  2. Create a named feature branch (like add\_component\_x)
  3. Write your change
  4. Write tests for your change (if applicable)
  5. Run the tests, ensuring they all pass
  6. Submit a Pull Request using Github

Contributions of any sort are very welcome!

License and Authors

Authors: Chris Aumann me@chr4.org Contributors: Jeremy Olliver, Andy Thompson, Peter Walz, Kevin Olbrich, Johnny Martin, Renato Covarrubias

Collaborator Number Metric
            

3.0.0 failed this metric

Failure: Cookbook has 0 collaborators. A cookbook must have at least 2 collaborators to pass this metric.

Contributing File Metric
            

3.0.0 failed this metric

Failure: To pass this metric, your cookbook metadata must include a source url, the source url must be in the form of https://github.com/user/repo, and your repo must contain a CONTRIBUTING.md file

Foodcritic Metric
            

3.0.0 passed this metric

No Binaries Metric
            

3.0.0 failed this metric

Failure: Cookbook should not contain binaries. Found:
sshd/libraries/matchers.rb

Publish Metric
            

3.0.0 passed this metric

Supported Platforms Metric
            

3.0.0 passed this metric

Testing File Metric
            

3.0.0 passed this metric

Version Tag Metric
            

3.0.0 failed this metric

Failure: To pass this metric, your cookbook metadata must include a source url, the source url must be in the form of https://github.com/user/repo, and your repo must include a tag that matches this cookbook version number