OpenSSH Server

This role configures the OpenSSH daemon. It:

• By default configures the SSH daemon with the normal OS defaults.
• Works across a variety of UN*X like distributions
• Can be configured by dict or simple variables
• Supports Match sets
• Supports all sshd_config options. Templates are programmatically generated. (see meta/make_option_list)
• Tests the sshd_config before reloading sshd.

Requirements

Tested on:

• Ubuntu precise, trusty
• Debian wheezy, jessie
• FreeBSD 10.1
• EL 6,7 derived distributions

It will likely work on other flavours and more direct support via suitable vars/ files is welcome.

Role variables

• Unconfigured, this role will provide a sshd_config that matches the OS default, minus the comments and in a different order.

• Defaults can be disabled by setting sshd_skip_defaults: true

• Supports use of a dict to configure items:

sshd:
  Compression: delayed
  ListenAddress:
    - 0.0.0.0

• Simple variables can be used rather than a dict. Simple values override dict values:

sshd_Compression: off

• Correctly interprets booleans as yes and no in sshd configuration
• Supports lists for multi line configuration items:

sshd_ListenAddress:
  - 0.0.0.0
  - '::'

• Supports match section either via Match in the sshd dict, sshd_match and any of sshd_match_1 through sshd_match_9. Match items can either be a dict or an array.

Example Playbook

---
- hosts: all
  vars:
    sshd_skip_defaults: true
    sshd:
      Compression: true
      ListenAddress:
        - "0.0.0.0"
        - "::"
      GSSAPIAuthentication: no
      Match:
        - Condition: "Group user"
          GSSAPIAuthentication: yes
    sshd_UsePrivilegeSeparation: sandbox
    sshd_match:
        - Condition: "Group xusers"
          X11Forwarding: yes
  roles:
    - role: willshersystems.sshd

Results in:

# Ansible managed: ...
Compression yes
GSSAPIAuthentication no
UsePrivilegeSeparation sandbox
Match Group user
  GSSAPIAuthentication yes
Match Group xusers
  X11Forwarding yes

License

LGPLv3

Author

Matt Willsher matt@willsher.systems

Copyright 2014,2015 Willsher Systems