puppet-module-ssh

Manage ssh client and server.

The module uses exported resources to manage ssh keys and removes ssh keys that are not managed by puppet. This behavior is managed by the parameters ssh_key_ensure and purge_keys.

===

Compatability

This module has been tested to work on the following systems with Puppet versions v3, v3 with future parser and v4 with Ruby versions 1.8.7 (Puppet v3 only), 1.9.3, 2.0.0 and 2.1.0.

Debian 7
EL 5
EL 6
EL 7
SLES 11
SLES 12
Ubuntu 12.04 LTS
Solaris 9
Solaris 10
Solaris 11

===

Parameters

A value of 'USE_DEFAULTS' will use the defaults specified by the module.

hiera_merge

Boolean to merges all found instances of ssh::keys in Hiera. This is useful for specifying SSH keys at different levels of the hierarchy and having them all included in the catalog.

This will default to 'true' in future versions.

Default: false

ssh_config_hash_known_hosts

HashKnownHosts in ssh_config. Indicates that ssh should hash host names and addresses when they are added to ~/.ssh/known_hosts. These hashed names may be used normally by ssh and sshd, but they do not reveal identifying information should the file's contents be disclosed. The default is 'no' on Linux.

Note that existing names and addresses in known hosts files will not be converted automatically, but may be manually hashed using ssh-keygen. Use of this option may break facilities such as tab-completion that rely on being able to read unhashed host names from ~/.ssh/known_hosts.

Default: 'USE_DEFAULTS'

ssh_config_path

Path to ssh_config.

Default: '/etc/ssh/ssh_config'

ssh_config_owner

ssh_config's owner.

Default: 'root'

ssh_config_group

ssh_config's group.

Default: 'root'

ssh_config_mode

ssh_config's mode.

Default: '0644'

ssh_config_forward_x11

ForwardX11 option in ssh_config. Not set by default.

Default: undef

ssh_config_forward_agent

ForwardAgent option in ssh_config. Not set by default.

Default: undef

ssh_config_server_alive_interval

ServerAliveInterval option in ssh_config. Not set by default.

Default: undef

ssh_config_sendenv_xmodifiers

Boolean to set 'SendEnv XMODIFIERS' in ssh_config. This option is only valid on Linux.

Default: false

ssh_config_template

string The template used to generate ssh_config.

Default: 'ssh/ssh_config.erb'

ssh_config_ciphers

Array of ciphers to be used with the Ciphers option in ssh_config.

Default: undef

ssh_config_macs

Array of ciphers to be used with the MACs option in ssh_config.

Default: undef

ssh_sendenv

Boolean to enable SendEnv options for specifying environment variables. Default is set to true on Linux.

Default: 'USE_DEFAULTS'

ssh_gssapiauthentication

GSSAPIAuthentication: Enables/disables GSS-API user authentication in ssh_config. Valid values are 'yes' and 'no'.

Default: 'yes'

ssh_gssapidelegatecredentials

string For GSSAPIDelegateCredentials setting in ssh_config. Valid values are 'yes' and 'no' or to leave undef which will ensure the setting is not present in ssh_config.

Default: undef

sshd_config_path

Path to sshd_config.

Default: '/etc/ssh/sshd_config

sshd_config_owner

sshd_config's owner.

Default: 'root'

sshd_config_group

sshd_config's group.

Default: 'root'

sshd_config_loglevel

LogLevel option in sshd_config. Acceptable values are QUIET, FATAL, ERROR, INFO, VERBOSE.

DEBUG, DEBUG1, DEBUG2, and DEBUG3 are permitted values for sshd, however setting the logging level to DEBUG or higher violates the privacy of users and should not be done unless manually debugging.

Default: 'INFO'

sshd_config_mode

sshd_config's mode. The default is '0600' on Linux and '0644' on Solaris.

Default: 'USE_DEFAULTS'

sshd_listen_address

String or Array to specify address(es) for which sshd will bind. Corresponds to ListenAddress in sshd_config.

Default: undef

sshd_config_port

String to specify listen port for sshd. Port option in sshd_config.

Default: '22'

sshd_config_syslog_facility

SyslogFacility option in sshd_config.

Default: 'AUTH'

sshd_config_template

string The template used to generate sshd_config.

Default: 'ssh/sshd_config.erb'

sshd_config_login_grace_time

LoginGraceTime option in sshd_config.

Default: '120'

sshd_config_challenge_resp_auth

ChallengeResponseAuthentication option in sshd_config.

Default: 'yes'

sshd_config_print_motd

PrintMotd option in sshd_config.

Default: 'yes'

sshd_config_use_dns

UseDNS option in sshd_config. The default is 'yes' on Linux.

Default: 'USE_DEFAULTS'

sshd_config_authkey_location

Specify location of authorized_keys file. Default is to not specify.

Default: undef

sshd_config_hostkey

Specify an array of server side HostKey files to use. Default is to use only /etc/ssh/ssh_host_rsa_key

Default: /etc/ssh/ssh_host_rsa_key

sshd_config_strictmodes

Specifies whether sshd should check file modes and ownership of the user's files and home directory before accepting login. Valid values are yes and no.

Default: undef

sshd_config_serverkeybits

Defines the number of bits in the ephemeral protocol version 1 server key. The minimum value is 512, and the default is 1024 except for Solaris default value is 768.

Default: '1024' except for Solaris which is '768'

sshd_config_banner

Banner option in sshd_config.

Default: 'none'

sshd_banner_content

content parameter for file specified in sshd_config_banner

Default: undef

sshd_banner_owner

owner parameter for file specified in sshd_config_banner

Default: 'root'

sshd_banner_group

group parameter for file specified in sshd_config_banner

Default: 'root'

sshd_banner_mode

mode parameter for file specified in sshd_config_banner

Default: '0644'

sshd_config_xauth_location

XAuthLocation option in sshd_config.

Default: 'USE_DEFAULTS'

sshd_config_subsystem_sftp

Path to sftp file transfer subsystem in sshd_config.

Default: 'USE_DEFAULTS'

sshd_password_authentication

PasswordAuthentication in sshd_config. Specifies whether password authentication is allowed.

Default: 'yes'

sshd_allow_tcp_forwarding

AllowTcpForwarding in sshd_config. Specifies whether TCP forwarding is permitted.

Default: 'yes'

sshd_authorized_keys_command

Fully qualified path to command for AuthorizedKeysCommand in sshd_config.

Default: undef

sshd_authorized_keys_command_user

String of user for AuthorizedKeysCommandUser in sshd_config.

Default: undef

sshd_x11_forwarding

X11Forwarding in sshd_config. Specifies whether X11 forwarding is permitted.

Default: 'yes'

sshd_use_pam

UsePam in sshd_config. Enables the Pluggable Authentication Module interface. If set to 'yes' this will enable PAM authentication using ChallengeResponseAuthentication and PasswordAuthentication in addition to PAM account and session module processing for all authentication types. This module sets this option to 'yes' on Linux and undef on Solaris.

Default: 'USE_DEFAULTS'

sshd_client_alive_interval

ClientAliveInterval in sshd_config. Sets a timeout interval in seconds after which if no data has been received from the client, sshd(8) will send a message through the encrypted channel to request a response from the client. The default is 0, indicating that these messages will not be sent to the client. This option applies to protocol version 2 only.

Default: '0'

sshd_client_alive_count_max

ClientAliveCountMax in sshd_config. Sets the number of client alive messages (see below) which may be sent without sshd(8) receiving any messages back from the client. If this threshold is reached while client alive messages are being sent, sshd will disconnect the client, terminating the session. It is important to note that the use of client alive messages is very different from TCPKeepAlive (below). The client alive messages are sent through the encrypted channel and therefore will not be spoofable. The TCP keepalive option enabled by TCPKeepAlive is spoofable. The client alive mechanism is valuable when the client or server depend on knowing when a connection has become inactive. The default value is 3. If ClientAliveInterval (see below) is set to 15, and ClientAliveCountMax is left at the default, unresponsive SSH clients will be disconnected after approximately 45 seconds. This option applies to protocol version 2 only.

Default: '3'

sshd_config_ciphers

Array of ciphers for the Ciphers setting in sshd_config.

Default: undef

sshd_config_macs

Array of macs for the MACs setting in sshd_config.

Default: undef

sshd_config_denyusers

Array of users for the DenyUsers setting in sshd_config.

Default: undef

sshd_config_denygroups

Array of groups for the DenyGroups setting in sshd_config.

Default: undef

sshd_config_allowgroups

Array of users for the AllowGroups setting in sshd_config.

Default: undef

sshd_config_allowusers

Array of users for the AllowUsers setting in sshd_config.

Default: undef

sshd_config_maxstartups

Specifies the maximum number of concurrent unauthenticated connections to the SSH daemon.

Default: undef

sshd_config_maxsessions

Specifies the maximum number of open sessions permitted per network connection.

Default: undef

sshd_config_chrootdirectory

String with absolute path for the ChrootDirectory directive for the SSH daemon.

Default: undef

sshd_config_forcecommand

String with command for the ForceCommand directive for the SSH daemon.

Default: undef

sshd_config_match

Hash for matches with nested arrays for options for the Match directive for the SSH daemon. Match directive is supported on SSH >= 5.x.

Default: undef
Hiera example:

ssh::sshd_config_match:
  'User JohnDoe':
    - 'AllowTcpForwarding yes'
  'Address 2.4.2.0':
    - 'X11Forwarding yes'
    - 'PasswordAuthentication no'

keys

Hash of keys for user's ~/.ssh/authorized_keys

Default: undefined

packages

Array of package names used for installation.

Default: Based on OS

permit_root_login

Allow root login. Valid values are 'yes', 'without-password', 'forced-commands-only', and 'no'.

Default: yes

ssh_config_forward_x11_trusted

ForwardX11Trusted. Determine remote X11 client access to the original X11 display. The option is set to 'yes' on Linux. Valid values are 'yes', 'no', and undef.

Default: 'USE_DEFAULTS' (Not valid on Solaris.)

ssh_package_source

Source to SSH packages.

Default: 'USE_DEFAULTS'

ssh_package_adminfile

Path to admin file for SSH packages.

Default: 'USE_DEFAULTS'

sshd_gssapiauthentication

GSSAPIAuthentication: Enables/disables GSS-API user authentication. Valid values are 'yes' and 'no'.

Default: 'yes'

sshd_gssapikeyexchange

GSSAPIKeyExchange: Enables/disables GSS-API-authenticated key exchanges. Valid values are 'yes', 'no', and undef.

Default: 'USE_DEFAULTS'

sshd_pamauthenticationviakbdint

PAMAuthenticationViaKBDInt: Use PAM via keyboard interactive method for authentication. Valid values are 'yes', 'no', and undef.

Default: 'USE_DEFAULTS'

sshd_gssapicleanupcredentials

GSSAPICleanupCredentials: Specifies whether to automatically destroy the user's credentials on logout. Default is 'yes' on Linux. Valid values are 'yes', 'no', and undef.

Default: 'USE_DEFAULTS'

sshd_acceptenv

Boolean to enable AcceptEnv options for specifying environment variables. Default is set to true on Linux.

Default: 'USE_DEFAULTS'

sshd_hostbasedauthentication

String for HostbasedAuthentication option in sshd_config. Valid values are 'yes' and 'no'. Specifies whether rhosts or /etc/hosts.equiv authentication together with successful public key client host authentication is allowed (host-based authentication). This option is similar to RhostsRSAAuthentication and applies to protocol version 2 only.

Default: 'no'

sshd_ignoreuserknownhosts

String for IgnoreUserKnownHosts option in sshd_config. Valid values are 'yes' and 'no'. Specifies whether sshd(8) should ignore the user's ~/.ssh/known_hosts during RhostsRSAAuthentication or HostbasedAuthentication.

Default: 'no'

sshd_ignorerhosts

String for IgnoreRhosts option in sshd_config. Valid values are 'yes' and 'no'. Specifies that .rhosts and .shosts files will not be used in RhostsRSAAuthentication or HostbasedAuthentication though /etc/hosts.equiv and /etc/ssh/shosts.equiv are still used.

Default: 'yes'

purge_keys

Remove keys not managed by puppet.

Default: 'true'

manage_firewall

Open firewall for SSH service. Not used on Solaris.

Default: false

service_ensure

Ensure SSH service is running. Valid values are 'stopped' and 'running'.

Default: 'running'

service_name

Name of the SSH service.

Default: Based on OS

service_enable

Start SSH at boot. Valid values are 'true', 'false' and 'manual'.

Default: 'true'

service_hasrestart

Specify that the init script has a restart command. Valid values are 'true' and 'false'.

Default: 'true'

service_hasstatus

Boolean to declare whether the service's init script has a functional status command.

Default: 'USE_DEFAULTS'

ssh_key_ensure

Export node SSH key. Valid values are 'present' and 'absent'.

Default: 'present'

ssh_key_import

Import all exported node SSH keys. Valid values are 'true' and 'false'.

Default: 'true'

ssh_key_type

Encryption type for SSH key. Valid values are 'rsa', 'dsa', 'ssh-dss' and 'ssh-rsa'

Default: 'ssh-rsa'

ssh_config_global_known_hosts_file

File of the global known_hosts file

Default: '/etc/ssh/ssh_known_hosts'

ssh_config_global_known_hosts_owner

Owner of the global known_hosts file

Default: 'root'

ssh_config_global_known_hosts_group

Group of the global known_hosts file

Default: 'root'

ssh_config_global_known_hosts_mode

File mode of the global known_hosts file

Default: '0644'

manage_root_ssh_config

Manage SSH config of root. Valid values are 'true' and 'false'.

Default: 'false'

root_ssh_config_content

Content of root's ~/.ssh/config.

Default: "# This file is being maintained by Puppet.\n# DO NOT EDIT\n"

===

Manage user's ssh_authorized_keys

This works by passing the ssh::keys hash to the ssh_authorized_keys type with create_resources(). Because of this, you may specify any valid parameter for ssh_authorized_key. See the Type Reference for a complete list.

Sample usage:

Push authorized key "root_for_userX" and remove key "root_for_userY" through Hiera.

ssh::keys:
  root_for_userX:
    ensure: present
    user: root
    type: dsa
    key: AAAA...==
  apachehup:
    ensure: present
    user: apachehup
    type: rsa
    key: 'AAAA...=='
    options: 'command="/sbin/service httpd restart"'
  root_for_userY:
    ensure: absent
    user: root

License

elsasa/puppet-module-ssh

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