openssh.attributes.default.rb

default[:sshd][:permit_root_login] = "no"
default[:sshd][:rsa_authentication] = "no"
default[:sshd][:pubkey_authentication] = "yes"
default[:sshd][:password_authentication] = "no"
default[:sshd][:pam_authentication] = "no"
default[:sshd][:allow_tcp_forwarding] = "yes"
default[:sshd][:x11_forwarding] = "yes"
default[:sshd][:permit_user_environment] = "yes"
default[:sshd][:banner] = "/etc/banner"

openssh.recipes.default.rb

#
# Cookbook Name:: openssh
# Recipe:: default
#
# Copyright 2008-2009, Opscode, Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#

packages = case node[:platform]
  when "centos","redhat","fedora"
    %w{openssh-clients openssh}
  when "arch"
    %w{openssh}
  else
    %w{openssh-client openssh-server}
  end
  
packages.each do |pkg|
  package pkg
end

service "ssh" do
  case node[:platform]
  when "centos","redhat","fedora","arch"
    service_name "sshd"
  else
    service_name "ssh"
  end
  supports value_for_platform(
    "debian" => { "default" => [ :restart, :reload, :status ] },
    "ubuntu" => {
      "8.04" => [ :restart, :reload ],
      "default" => [ :restart, :reload, :status ]
    },
    "centos" => { "default" => [ :restart, :reload, :status ] },
    "redhat" => { "default" => [ :restart, :reload, :status ] },
    "fedora" => { "default" => [ :restart, :reload, :status ] },
    "arch" => { "default" => [ :restart ] },
    "default" => { "default" => [:restart, :reload ] }
  )
  action [ :enable, :start ]
end

template "banner" do
  path "/etc/banner"
  source "banner.erb"
  owner "root"
  group "root"
  mode 0600
end

template "sshd_config" do
  path "/etc/ssh/sshd_config"
  source "sshd_config.erb"
  owner "root"
  group "root"
  mode 0600
  notifies :restart, resources(:service => "ssh"), :immediately
end

templates.default.sshd_config.erb

#      $OpenBSD: sshd_config,v 1.73 2005/12/06 22:38:28 reyk Exp $

# This is the sshd server system-wide configuration file.  See
# sshd_config(5) for more information.

# This sshd was compiled with PATH=/usr/local/bin:/bin:/usr/bin

# The strategy used for options in the default sshd_config shipped with
# OpenSSH is to specify options with their default value where
# possible, but leave them commented.  Uncommented options change a
# default value.

#Port 22
#Protocol 2,1
Protocol 2
#AddressFamily any
#ListenAddress 0.0.0.0
#ListenAddress ::

# HostKey for protocol version 1
#HostKey /etc/ssh/ssh_host_key
# HostKeys for protocol version 2
#HostKey /etc/ssh/ssh_host_rsa_key
#HostKey /etc/ssh/ssh_host_dsa_key

# Lifetime and size of ephemeral version 1 server key
#KeyRegenerationInterval 1h
#ServerKeyBits 768

# Logging
# obsoletes QuietMode and FascistLogging
#SyslogFacility AUTH
SyslogFacility AUTHPRIV
#LogLevel INFO

# Authentication:

#LoginGraceTime 2m
PermitRootLogin <%= node[:sshd][:permit_root_login] %>
#StrictModes yes
#MaxAuthTries 6

RSAAuthentication <%= node[:sshd][:rsa_authentication] %>
PubkeyAuthentication <%= node[:sshd][:pubkey_authentication] %>
#AuthorizedKeysFile    .ssh/authorized_keys

# For this to work you will also need host keys in /etc/ssh/ssh_known_hosts
RhostsRSAAuthentication no
# similar for protocol version 2
HostbasedAuthentication no
# Change to yes if you don't trust ~/.ssh/known_hosts for
# RhostsRSAAuthentication and HostbasedAuthentication
#IgnoreUserKnownHosts no
# Don't read the user's ~/.rhosts and ~/.shosts files
#IgnoreRhosts yes

# To disable tunneled clear text passwords, change to no here!
PasswordAuthentication <%= node[:sshd][:password_authentication] %>
PermitEmptyPasswords no


# Change to no to disable s/key passwords
ChallengeResponseAuthentication no

# Kerberos options
KerberosAuthentication no
#KerberosOrLocalPasswd yes
#KerberosTicketCleanup yes
#KerberosGetAFSToken no

# GSSAPI options
GSSAPIAuthentication no
#GSSAPICleanupCredentials yes
GSSAPICleanupCredentials yes

# Set this to 'yes' to enable PAM authentication, account processing, 
# and session processing. If this is enabled, PAM authentication will 
# be allowed through the ChallengeResponseAuthentication mechanism. 
# depending on your PAM configuration, this may bypass the setting of 
# PasswordAuthentication, PermitEmptyPasswords, and 
# "PermitRootLogin without-password". If you just want the PAM account and 
# session checks to run without PAM authentication, then enable this but set 
# ChallengeResponseAuthentication=no
UsePAM <%= node[:sshd][:pam_authentication] %>

# Accept locale-related environment variables
AcceptEnv LANG LC_CTYPE LC_NUMERIC LC_TIME LC_COLLATE LC_MONETARY LC_MESSAGES 
AcceptEnv LC_PAPER LC_NAME LC_ADDRESS LC_TELEPHONE LC_MEASUREMENT 
AcceptEnv LC_IDENTIFICATION LC_ALL
AllowTcpForwarding <%= node[:sshd][:allow_tcp_forwarding] %>
#GatewayPorts no
#X11Forwarding <%= node[:sshd][:x11_forwarding] %>
#X11DisplayOffset 10
#X11UseLocalhost yes
#PrintMotd yes
#PrintLastLog yes
#TCPKeepAlive yes
#UseLogin no
#UsePrivilegeSeparation yes
PermitUserEnvironment <%= node[:sshd][:permit_user_environment] %>
#Compression delayed
#ClientAliveInterval 0
#ClientAliveCountMax 3
#ShowPatchLevel no
#UseDNS yes
#PidFile /var/run/sshd.pid
#MaxStartups 10
#PermitTunnel no
#ChrootDirectory none

# no default banner path
Banner <%= node[:sshd][:banner] %>

# override default of no subsystems
Subsystem      sftp    /usr/libexec/openssh/sftp-server