community.general.ufw module – Manage firewall with UFW

Note

This module is part of the community.general collection (version 10.0.1).

You might already have this collection installed if you are using the ansible package. It is not included in ansible-core. To check whether it is installed, run ansible-galaxy collection list.

To install it, use: ansible-galaxy collection install community.general. You need further requirements to be able to use this module, see Requirements for details.

To use it in a playbook, specify: community.general.ufw.

Synopsis 

Manage firewall with UFW.

Requirements 

The below requirements are needed on the host that executes this module.

ufw package

Parameters 

Parameter	Comments
comment string	Add a comment to the rule. Requires UFW version >=0.35.
default aliases: policy string	Change the default policy for incoming or outgoing traffic. Choices: `"allow"` `"deny"` `"reject"`
delete boolean	Delete rule. If `delete=true` and a value is provided for `insert`, then `insert` is ignored. Choices: `false` ← (default) `true`
direction string	Select direction for a rule or default policy command. Mutually exclusive with `interface_in` and `interface_out`. Choices: `"in"` `"incoming"` `"out"` `"outgoing"` `"routed"`
from_ip aliases: from, src string	Source IP address. Default: `"any"`
from_port string	Source port.
insert integer	Insert the corresponding rule as rule number NUM. Note that ufw numbers rules starting with 1. If `delete=true` and a value is provided for `insert`, then `insert` is ignored.
insert_relative_to string	Allows to interpret the index in `insert` relative to a position. `zero` interprets the rule number as an absolute index (i.e. 1 is the first rule). `first-ipv4` interprets the rule number relative to the index of the first IPv4 rule, or relative to the position where the first IPv4 rule would be if there is currently none. `last-ipv4` interprets the rule number relative to the index of the last IPv4 rule, or relative to the position where the last IPv4 rule would be if there is currently none. `first-ipv6` interprets the rule number relative to the index of the first IPv6 rule, or relative to the position where the first IPv6 rule would be if there is currently none. `last-ipv6` interprets the rule number relative to the index of the last IPv6 rule, or relative to the position where the last IPv6 rule would be if there is currently none. Choices: `"first-ipv4"` `"first-ipv6"` `"last-ipv4"` `"last-ipv6"` `"zero"` ← (default)
interface aliases: if string	Specify interface for the rule. The direction (in or out) used for the interface depends on the value of `direction`. See `interface_in` and `interface_out` for routed rules that needs to supply both an input and output interface. Mutually exclusive with `interface_in` and `interface_out`.
interface_in aliases: if_in string added in community.general 0.2.0	Specify input interface for the rule. This is mutually exclusive with `direction` and `interface`. However, it is compatible with `interface_out` for routed rules.
interface_out aliases: if_out string added in community.general 0.2.0	Specify output interface for the rule. This is mutually exclusive with `direction` and `interface`. However, it is compatible with `interface_in` for routed rules.
log boolean	Log new connections matched to this rule Choices: `false` ← (default) `true`
logging string	Toggles logging. Logged packets use the LOG_KERN syslog facility. Choices: `"on"` `"off"` `"low"` `"medium"` `"high"` `"full"`
name aliases: app string	Use profile located in `/etc/ufw/applications.d`.
proto aliases: protocol string	TCP/IP protocol. Choices: `"any"` `"tcp"` `"udp"` `"ipv6"` `"esp"` `"ah"` `"gre"` `"igmp"`
route boolean	Apply the rule to routed/forwarded packets. Choices: `false` ← (default) `true`
rule string	Add firewall rule Choices: `"allow"` `"deny"` `"limit"` `"reject"`
state string	`enabled` reloads firewall and enables firewall on boot. `disabled` unloads firewall and disables firewall on boot. `reloaded` reloads firewall. `reset` disables and resets firewall to installation defaults. Choices: `"disabled"` `"enabled"` `"reloaded"` `"reset"`
to_ip aliases: dest, to string	Destination IP address. Default: `"any"`
to_port aliases: port string	Destination port.

Attributes 

Attribute	Support	Description
check_mode	Support: full	Can run in `check_mode` and return changed status prediction without modifying target.
diff_mode	Support: none	Will return details on what has changed (or possibly needs changing in `check_mode`), when in diff mode.

Notes 

Note

See man ufw for more examples.

Examples 

- name: Allow everything and enable UFW
  community.general.ufw:
    state: enabled
    policy: allow

- name: Set logging
  community.general.ufw:
    logging: 'on'

# Sometimes it is desirable to let the sender know when traffic is
# being denied, rather than simply ignoring it. In these cases, use
# reject instead of deny. In addition, log rejected connections:
- community.general.ufw:
    rule: reject
    port: auth
    log: true

# ufw supports connection rate limiting, which is useful for protecting
# against brute-force login attacks. ufw will deny connections if an IP
# address has attempted to initiate 6 or more connections in the last
# 30 seconds. See  http://www.debian-administration.org/articles/187
# for details. Typical usage is:
- community.general.ufw:
    rule: limit
    port: ssh
    proto: tcp

# Allow OpenSSH. (Note that as ufw manages its own state, simply removing
# a rule=allow task can leave those ports exposed. Either use delete=true
# or a separate state=reset task)
- community.general.ufw:
    rule: allow
    name: OpenSSH

- name: Delete OpenSSH rule
  community.general.ufw:
    rule: allow
    name: OpenSSH
    delete: true

- name: Deny all access to port 53
  community.general.ufw:
    rule: deny
    port: '53'

- name: Allow port range 60000-61000
  community.general.ufw:
    rule: allow
    port: 60000:61000
    proto: tcp

- name: Allow all access to tcp port 80
  community.general.ufw:
    rule: allow
    port: '80'
    proto: tcp

- name: Allow all access from RFC1918 networks to this host
  community.general.ufw:
    rule: allow
    src: '{{ item }}'
  loop:
    - 10.0.0.0/8
    - 172.16.0.0/12
    - 192.168.0.0/16

- name: Deny access to udp port 514 from host 1.2.3.4 and include a comment
  community.general.ufw:
    rule: deny
    proto: udp
    src: 1.2.3.4
    port: '514'
    comment: Block syslog

- name: Allow incoming access to eth0 from 1.2.3.5 port 5469 to 1.2.3.4 port 5469
  community.general.ufw:
    rule: allow
    interface: eth0
    direction: in
    proto: udp
    src: 1.2.3.5
    from_port: '5469'
    dest: 1.2.3.4
    to_port: '5469'

# Note that IPv6 must be enabled in /etc/default/ufw for IPv6 firewalling to work.
- name: Deny all traffic from the IPv6 2001:db8::/32 to tcp port 25 on this host
  community.general.ufw:
    rule: deny
    proto: tcp
    src: 2001:db8::/32
    port: '25'

- name: Deny all IPv6 traffic to tcp port 20 on this host
  # this should be the first IPv6 rule
  community.general.ufw:
    rule: deny
    proto: tcp
    port: '20'
    to_ip: "::"
    insert: 0
    insert_relative_to: first-ipv6

- name: Deny all IPv4 traffic to tcp port 20 on this host
  # This should be the third to last IPv4 rule
  # (insert: -1 addresses the second to last IPv4 rule;
  #  so the new rule will be inserted before the second
  #  to last IPv4 rule, and will be come the third to last
  #  IPv4 rule.)
  community.general.ufw:
    rule: deny
    proto: tcp
    port: '20'
    to_ip: "::"
    insert: -1
    insert_relative_to: last-ipv4

# Can be used to further restrict a global FORWARD policy set to allow
- name: Deny forwarded/routed traffic from subnet 1.2.3.0/24 to subnet 4.5.6.0/24
  community.general.ufw:
    rule: deny
    route: true
    src: 192.0.2.0/24
    dest: 198.51.100.0/24

Authors

Aleksey Ovcharenko (@ovcharenko)
Jarno Keskikangas (@pyykkis)
Ahti Kitsik (@ahtik)

community.general.ufw module – Manage firewall with UFW

Synopsis

Requirements

Parameters

Attributes

Notes

Examples