### Installing PowerDNS Recursor from Official Repositories

Source: https://github.com/powerdns/pdns_recursor-ansible/blob/master/README.md

Playbook examples to deploy the role on hosts, specifying different official PowerDNS repositories (master, 5.0.x, 5.1.x). Requires pre-defined repo variables like pdns_rec_powerdns_repo_master. Targets 'pdns-recursors' group; no additional dependencies.

```yaml
# Install the PowerDNS Recursor from the 'master' official repository
- hosts: pdns-recursors
  roles:
  - { role: PowerDNS.pdns_recursor,
      pdns_rec_install_repo: "{{ pdns_rec_powerdns_repo_master }}" }
```

```yaml
# Install the PowerDNS Recursor from the '5.0.x' official repository
- hosts: pdns-recursors
  roles:
  - { role: PowerDNS.pdns_recursor,
      pdns_rec_install_repo: "{{ pdns_rec_powerdns_repo_50 }}" }
```

```yaml
# Install the PowerDNS Recursor from the '5.1.x' official repository
- hosts: pdns-recursors
  roles:
  - { role: PowerDNS.pdns_recursor,
      pdns_rec_install_repo: "{{ pdns_rec_powerdns_repo_51 }}" }
```

--------------------------------

### Install EPEL Dependency (YAML)

Source: https://github.com/powerdns/pdns_recursor-ansible/blob/master/README.md

This snippet demonstrates how to install the EPEL repository, which is needed for certain PowerDNS Recursor dependencies, such as protobuf. It enables or disables the EPEL installation based on the value of the `pdns_rec_install_epel` variable.

```YAML
pdns_rec_install_epel: True
```

--------------------------------

### Deploy High-Performance Production Recursor Setup

Source: https://context7.com/powerdns/pdns_recursor-ansible/llms.txt

Comprehensive configuration for production recursive DNS server with performance tuning, security hardening, and monitoring. This example includes network configuration, cache settings, DNSSEC validation, logging, and web service configuration. Requires vault_pdns_api_key to be defined in Ansible vault.

```yaml
---
- hosts: pdns-recursors
  vars:
    pdns_rec_install_repo: "{{ pdns_rec_powerdns_repo_52 }}"
    pdns_rec_service_state: "started"
    pdns_rec_service_enabled: "yes"

    pdns_rec_custom_config:
      incoming:
        listen:
          - "0.0.0.0:53"
          - "[::]:53"

      recursor:
        allow_from:
          - "10.0.0.0/8"
          - "172.16.0.0/12"
          - "192.168.0.0/16"
        threads: 4
        max_cache_entries: 1000000
        max_negative_ttl: 3600
        extended_resolution_errors: true
        forward_zones_file: "/var/lib/pdns-recursor/forward-zones.txt"
        include_dir: "/etc/pdns-recursor/conf.d"

      dnssec:
        log_bogus: true
        validation: process

      outgoing:
        source_address:
          - "0.0.0.0"
          - "::"

      logging:
        loglevel: 4
        disable_syslog: false

      webservice:
        api_key: "{{ vault_pdns_api_key }}"
        address: "127.0.0.1"
        port: 8082
        allow_from:
          - "127.0.0.1"

    pdns_rec_config_from_files:
      - dest: "/var/lib/pdns-recursor/forward-zones.txt"
        content: |
          internal.example.com=10.0.0.1:53
          corp.example.com=10.0.0.2:53

    pdns_rec_config_lua_file_content: |
      clearQueryLocalAddress()
      addQueryLocalAddress("10.0.0.53")

      rpzFile("/etc/pdns-recursor/rpz/malware.rpz", {policyName="malware"})
      rpzFile("/etc/pdns-recursor/rpz/phishing.rpz", {policyName="phishing"})

    pdns_rec_service_overrides: "{{ default_pdns_rec_service_overrides | combine({'LimitNOFILE': 65536, 'Restart': 'always', 'RestartSec': '5s'}) }}"

  roles:
    - role: PowerDNS.pdns_recursor
```

--------------------------------

### Install PowerDNS Recursor from Official Repository (YAML)

Source: https://github.com/powerdns/pdns_recursor-ansible/blob/master/README.md

Demonstrates installing the PowerDNS Recursor from the official PowerDNS repositories using Ansible roles and variables. This ensures the latest stable version is installed, and repositories are configured correctly, based on the system's distribution and release.

```YAML
- hosts: pdns-recursors
  roles:
  - { role: PowerDNS.pdns_recursor,
      pdns_rec_install_repo: "{{ pdns_rec_powerdns_repo_52 }}" }
```

--------------------------------

### Install PowerDNS Recursor from Custom Repository (YAML)

Source: https://github.com/powerdns/pdns_recursor-ansible/blob/master/README.md

Illustrates how to install the PowerDNS Recursor from a custom repository. Users can define the repository name, APT/YUM repository URLs, and GPG key information within Ansible variables to manage the installation process.

```YAML
- hosts: all
  vars:
    pdns_rec_install_repo:
      name: "powerdns-rec"
      apt_repo_origin: "repo.example.com"
      apt_repo: "deb http://repo.example.com/{{ ansible_distribution | lower }}/ {{ ansible_distribution_release | lower }}/pdns-recursor main"
      gpg_key: "http://repo.example.com/MYREPOGPGPUBKEY.asc"
      gpg_key_id: "MYREPOGPGPUBKEYID"
      yum_repo_baseurl: "http://repo.example.com/centos/$basearch/$releasever/pdns-recursor"
      yum_repo_debug_symbols_baseurl: "http://repo.example.com/centos/$basearch/$releasever/pdns-recursor/debug"
  roles:
  - { role: PowerDNS.pdns_recursor }
```

--------------------------------

### Install PowerDNS Recursor from Custom Repository (YAML)

Source: https://context7.com/powerdns/pdns_recursor-ansible/llms.txt

This YAML Ansible playbook sets up a custom repository with GPG key verification for installing PowerDNS Recursor. It requires the PowerDNS.pdns_recursor role and Ansible variables for repository details like name, apt_repo, and gpg_key. The output is a verified package installation, with limitations on unsupported distributions or invalid GPG keys.

```yaml
---
- hosts: dns-servers
  vars:
    pdns_rec_install_repo:
      name: "powerdns-rec"
      apt_repo_origin: "repo.example.com"
      apt_repo: "deb http://repo.example.com/{{ ansible_distribution | lower }} {{ ansible_distribution_release | lower }}/pdns-recursor main"
      gpg_key: "http://repo.example.com/MYREPOGPGPUBKEY.asc"
      gpg_key_id: "MYREPOGPGPUBKEYID"
      yum_repo_baseurl: "http://repo.example.com/centos/$basearch/$releasever/pdns-recursor"
      yum_repo_debug_symbols_baseurl: "http://repo.example.com/centos/$basearch/$releasever/pdns-recursor/debug"
  roles:
    - role: PowerDNS.pdns_recursor
```

--------------------------------

### Install PowerDNS Recursor from Official 5.2.x Repository (YAML)

Source: https://context7.com/powerdns/pdns_recursor-ansible/llms.txt

This YAML Ansible playbook configures the role to install PowerDNS Recursor from the official 5.2.x release repository. It depends on the PowerDNS.pdns_recursor role and requires Ansible inventory with pdns-recursors hosts. The playbook sets the install repo variable and outputs a configured DNS recursor installation, limited to supported distributions like Debian and RHEL.

```yaml
---
- hosts: pdns-recursors
  roles:
    - role: PowerDNS.pdns_recursor
      pdns_rec_install_repo: "{{ pdns_rec_powerdns_repo_52 }}"
```

--------------------------------

### Install PowerDNS Recursor Without Starting Service (YAML)

Source: https://context7.com/powerdns/pdns_recursor-ansible/llms.txt

This YAML Ansible playbook installs and configures PowerDNS Recursor without starting the service. It uses the PowerDNS.pdns_recursor role with variables to stop the service and disable startup. The output is a configured but stopped service, useful for manual starts or further configuration.

```yaml
---
- hosts: pdns-recursors
  vars:
    pdns_rec_service_state: "stopped"
    pdns_rec_service_enabled: "no"
  roles:
    - role: PowerDNS.pdns_recursor
```

--------------------------------

### Install Specific PowerDNS Recursor Package Version (YAML)

Source: https://context7.com/powerdns/pdns_recursor-ansible/llms.txt

This YAML Ansible playbook pins the installation to a specific PowerDNS Recursor version and optionally installs debug symbols. It depends on the PowerDNS.pdns_recursor role and requires version strings like '5.0.2-1'. The output is a version-specific installation, limited to available package versions and supported platforms.

```yaml
---
- hosts: pdns-recursors
  vars:
    pdns_rec_package_version: "5.0.2-1"
    pdns_rec_install_debug_symbols_package: true
  roles:
    - role: PowerDNS.pdns_recursor
```

--------------------------------

### Install Debug Symbols (YAML)

Source: https://github.com/powerdns/pdns_recursor-ansible/blob/master/README.md

Enables the installation of debug symbols for the PowerDNS Recursor package.

```YAML
pdns_rec_install_debug_symbols_package: False
```

--------------------------------

### Configure Include Directory for Modular Configuration

Source: https://context7.com/powerdns/pdns_recursor-ansible/llms.txt

Sets up include-dir for modular configuration management in PowerDNS Recursor. This allows for splitting configuration across multiple files in a directory. The example creates a configuration directory with specific permissions and references it in the main configuration.

```yaml
---
- hosts: pdns-recursors
  vars:
    pdns_rec_custom_config:
      recursor:
        include_dir: "/etc/pdns-recursor/conf.d"
    pdns_rec_config_include_dir_mode: "0750"
  roles:
    - role: PowerDNS.pdns_recursor
```

--------------------------------

### Running Molecule Tests (Bash)

Source: https://context7.com/powerdns/pdns_recursor-ansible/llms.txt

Provides commands to install test dependencies (tox) and execute Molecule tests for verifying the Ansible role's functionality across different configurations and Ansible versions.

```bash
# Install test dependencies
pip install tox

# Run all test scenarios
tox

# Run specific version test
tox -e ansible216 -- molecule test -s pdns-rec-52

# Run specific molecule command
tox -e ansible216 -- molecule converge -s pdns-rec-51
```

--------------------------------

### Deploy Forward Zones Configuration Files

Source: https://context7.com/powerdns/pdns_recursor-ansible/llms.txt

Copies external configuration files to the target system for use with from-file settings. This example shows how to deploy forward zones files and export etc hosts configurations. Uses the pdns_rec_config_from_files variable to manage file deployment and pdns_rec_custom_config for configuration references.

```yaml
---
- hosts: pdns-recursors
  vars:
    pdns_rec_config_from_files:
      - dest: "/var/lib/pdns-recursor/forward-zones.txt"
        src: "files/forward-zones/forward.txt"
      - dest: "/var/lib/pdns-recursor/export-etc-hosts.txt"
        content: |
          example.local=192.0.2.100
          test.local=192.0.2.101
    pdns_rec_config_from_files_dir_mode: "0750"
    pdns_rec_custom_config:
      recursor:
        forward_zones_file: "/var/lib/pdns-recursor/forward-zones.txt"
        export_etc_hosts_search_suffix: "local"
  roles:
    - role: PowerDNS.pdns_recursor
```

--------------------------------

### Configure Lua DNS Script for Query Manipulation

Source: https://context7.com/powerdns/pdns_recursor-ansible/llms.txt

Deploys Lua scripts for DNS query manipulation and custom resolution logic. This example shows how to block specific domains and log query resolutions. Requires the PowerDNS.pdns_recursor Ansible role to function properly.

```yaml
---
- hosts: pdns-recursors
  vars:
    pdns_rec_config_dns_script_file_content: |
      function preresolve(dq)
        if dq.qname:equal("block.example.com") then
          dq.rcode = pdns.NXDOMAIN
          return true
        end
        return false
      end

      function postresolve(dq)
        pdnslog("Query for " .. dq.qname:toString() .. " resolved")
        return false
      end
  roles:
    - role: PowerDNS.pdns_recursor
```

--------------------------------

### PowerDNS Recursor Role Variables

Source: https://github.com/powerdns/pdns_recursor-ansible/blob/master/README.md

Defines default variables for the role, such as the installation repository. Defaults to empty string, using host's software repositories. See defaults/main.yml for full list.

```yaml
pdns_rec_install_repo: ""
```

--------------------------------

### Specify Package Version (YAML)

Source: https://github.com/powerdns/pdns_recursor-ansible/blob/master/README.md

Allows setting a specific PowerDNS Recursor package version for installation.

```YAML
pdns_rec_package_version: ""
```

--------------------------------

### Configure Lua Config File for PowerDNS Recursor

Source: https://context7.com/powerdns/pdns_recursor-ansible/llms.txt

Deploys custom Lua configuration scripts for advanced PowerDNS Recursor behavior. This snippet shows how to set custom query local addresses and RPZ feeds. Requires the PowerDNS.pdns_recursor Ansible role to be installed and accessible.

```yaml
---
- hosts: pdns-recursors
  vars:
    pdns_rec_config_lua_file_content: |
      -- Custom Lua configuration
      clearQueryLocalAddress()
      addQueryLocalAddress("192.0.2.4")
      addQueryLocalAddress("2001:db8::4")

      -- Set custom RPZ feeds
      rpzFile("/etc/pdns-recursor/rpz-feeds/malware.rpz", {policyName="malware"})
  roles:
    - role: PowerDNS.pdns_recursor
```

--------------------------------

### Control PowerDNS Recursor Service State (YAML)

Source: https://context7.com/powerdns/pdns_recursor-ansible/llms.txt

This YAML Ansible playbook configures the PowerDNS Recursor service to start and enable it, with handler control. It requires the PowerDNS.pdns_recursor role and variables for state and enablement. The output manages service lifecycle, with limitations on systems without systemd.

```yaml
---
- hosts: pdns-recursors
  vars:
    pdns_rec_service_state: "started"
    pdns_rec_service_enabled: "yes"
    pdns_rec_disable_handlers: false
  roles:
    - role: PowerDNS.pdns_recursor
```

--------------------------------

### Configure Systemd Service Overrides

Source: https://context7.com/powerdns/pdns_recursor-ansible/llms.txt

Customizes systemd service parameters including resource limits and execution user for PowerDNS Recursor. This snippet sets user, group, and resource limits. Works with PowerDNS Recursor installations that use systemd service management.

```yaml
---
- hosts: pdns-recursors
  vars:
    pdns_rec_service_overrides:
      User: "pdns"
      Group: "pdns"
      LimitNOFILE: 10000
      LimitNPROC: 1000
  roles:
    - role: PowerDNS.pdns_recursor
```

--------------------------------

### Extend Default Systemd Service Overrides

Source: https://context7.com/powerdns/pdns_recursor-ansible/llms.txt

Merges custom systemd overrides with role defaults for PowerDNS Recursor 4.3+. This example demonstrates combining default settings with custom NOFILE limits and restart policies. Requires PowerDNS Recursor 4.3+ and the default_pdns_rec_service_overrides variable to be defined.

```yaml
---
- hosts: pdns-recursors
  vars:
    pdns_rec_service_overrides: "{{ default_pdns_rec_service_overrides | combine({'LimitNOFILE': 10000, 'Restart': 'always'}) }}"
  roles:
    - role: PowerDNS.pdns_recursor
```

--------------------------------

### Configure PowerDNS Recursor with Forward Zones

Source: https://github.com/powerdns/pdns_recursor-ansible/blob/master/README.md

Configures PowerDNS Recursor to forward queries for specific domains to different nameservers. It demonstrates forwarding 'corp.example.net' to a local nameserver and 'foo.example' to external nameservers.

```yaml
- hosts: pdns-recursors
  vars:
    pdns_rec_config:
      forward-zones:
        - "corp.example.net=127.0.0.1:5300"
        - "foo.example=192.0.2.3;2001:db8::2:3"
  roles:
    - { role: PowerDNS.pdns_recursor }
```

--------------------------------

### Available Molecule Test Scenarios (Bash)

Source: https://context7.com/powerdns/pdns_recursor-ansible/llms.txt

Lists the available Molecule test scenarios, each corresponding to a specific version or branch of PowerDNS Recursor. These are used to isolate and test compatibility.

```bash
# Available molecule scenarios
molecule/pdns-rec-50/      # Test PowerDNS Recursor 5.0.x
molecule/pdns-rec-51/      # Test PowerDNS Recursor 5.1.x
molecule/pdns-rec-52/      # Test PowerDNS Recursor 5.2.x
molecule/pdns-rec-master/  # Test PowerDNS Recursor master branch
```

--------------------------------

### Supported Platforms for Ansible Role (YAML)

Source: https://context7.com/powerdns/pdns_recursor-ansible/llms.txt

Lists the operating systems and their versions compatible with this Ansible role. This metadata is used by Ansible Galaxy and for targeted deployments.

```yaml
# Supported platforms from meta/main.yml
platforms:
  - name: EL
    versions:
      - "8"
      - "9"
  - name: Debian
    versions:
      - bullseye
      - bookworm
  - name: Ubuntu
    versions:
      - focal
      - jammy
  - name: FreeBSD
    versions:
      - "11.0"
      - "12.0"
```

--------------------------------

### Configuration from Files (YAML)

Source: https://github.com/powerdns/pdns_recursor-ansible/blob/master/README.md

Configures the PowerDNS Recursor by reading settings from files.

```YAML
pdns_rec_config_from_files_dir_mode: 0750
pdns_rec_config_from_files: []
```

--------------------------------

### Multi-Network PowerDNS Recursor Access with Listeners (YAML)

Source: https://context7.com/powerdns/pdns_recursor-ansible/llms.txt

This YAML Ansible playbook sets up multiple listening addresses with access control for various networks, including IPv6. It depends on the PowerDNS.pdns_recursor role and custom config for listens and allow_from lists. The output enables multi-interface DNS resolution, with limitations on unsupported IP families.

```yaml
---
- hosts: pdns-recursors
  vars:
    pdns_rec_custom_config:
      incoming:
        listen:
          - "203.0.113.53:53"
          - "192.0.2.10:53"
          - "[2001:db8::1]:53"
      recursor:
        allow_from:
          - "198.51.100.0/24"
          - "203.0.113.0/24"
          - "2001:db8::/32"
  roles:
    - role: PowerDNS.pdns_recursor
```

--------------------------------

### Basic PowerDNS Recursor Configuration with Access Control (YAML)

Source: https://context7.com/powerdns/pdns_recursor-ansible/llms.txt

This YAML Ansible playbook configures PowerDNS Recursor to listen on a specific IP and port with access control. It requires the PowerDNS.pdns_recursor role and custom config variables for listen addresses and allow_from networks. The output restricts DNS queries to specified networks, limited to valid IP ranges.

```yaml
---
- hosts: pdns-recursors
  vars:
    pdns_rec_custom_config:
      incoming:
        listen:
          - "203.0.113.53:5300"
      recursor:
        allow_from:
          - "198.51.100.0/24"
  roles:
    - role: PowerDNS.pdns_recursor
```

--------------------------------

### Configure PowerDNS Recursor Forward Zones (YAML)

Source: https://context7.com/powerdns/pdns_recursor-ansible/llms.txt

This YAML Ansible playbook configures forward zones to delegate specific DNS zones to designated nameservers. It requires the PowerDNS.pdns_recursor role and custom config with zone and forwarder details. The output forwards queries for specified zones, limited to valid zone names and reachable forwarders.

```yaml
---
- hosts: pdns-recursors
  vars:
    pdns_rec_custom_config:
      recursor:
        forward_zones:
          - zone: corp.example.net
            forwarders:
              - 127.0.0.1:5300
          - zone: foo.example
            forwarders:
              - 192.0.2.3
              - 2001:db8::2:3
  roles:
    - role: PowerDNS.pdns_recursor
```

--------------------------------

### Configure PowerDNS Recursor with Multiple Networks and Ulimits

Source: https://github.com/powerdns/pdns_recursor-ansible/blob/master/README.md

Allows traffic from multiple IP subnets and customizes the NOFILE ulimit for the PowerDNS Recursor service. This configuration enhances flexibility in network access and resource management.

```yaml
- hosts: pdns-recursors
  vars:
    pdns_rec_config:
      allow-from:
        - "198.51.100.0/24"
        - "203.0.113.53/24"
      local-address: "203.0.113.53:5300"
    pdns_rec_service_overrides:
      LimitNOFILE: 10000
  roles:
    - { role: PowerDNS.pdns_recursor }
```

--------------------------------

### Advanced PowerDNS Recursor DNSSEC Configuration (YAML)

Source: https://context7.com/powerdns/pdns_recursor-ansible/llms.txt

This YAML Ansible playbook enables DNSSEC validation with logging and extended errors. It depends on the PowerDNS.pdns_recursor role and custom config variables for DNSSEC settings. The output validates DNSSEC and logs details, with limitations on system clock synchronization and key validity.

```yaml
---
- hosts: pdns-recursors
  vars:
    pdns_rec_custom_config:
      dnssec:
        log_bogus: true
        validation: process
      recursor:
        extended_resolution_errors: true
      logging:
        loglevel: 6
      incoming:
        listen:
          - "0.0.0.0:53"
          - "[::]:53"
  roles:
    - role: PowerDNS.pdns_recursor
```

--------------------------------

### Configure PowerDNS Recursor with Basic Settings

Source: https://github.com/powerdns/pdns_recursor-ansible/blob/master/README.md

Sets the allowed client subnet and the local address and port for the PowerDNS Recursor. This is a fundamental configuration for restricting access and defining the listening interface.

```yaml
- hosts: pdns-recursors
  vars:
    pdns_rec_config:
      allow-from: "198.51.100.0/24"
      local-address: "203.0.113.53:5300"
  roles:
    - { role: PowerDNS.pdns_recursor }
```

--------------------------------

### Ansible Role Dependencies (YAML)

Source: https://context7.com/powerdns/pdns_recursor-ansible/llms.txt

Defines the Ansible collections and minimum Ansible version required for this role. Ensures compatibility and access to necessary modules.

```yaml
# requirements.yml
---
collections:
  - name: ansible.builtin
    version: ">=2.12"

# Minimum Ansible version: 2.12
```

--------------------------------

### Configure PowerDNS Recursor with Combined Ulimits

Source: https://github.com/powerdns/pdns_recursor-ansible/blob/master/README.md

Allows traffic from multiple IP subnets and merges custom NOFILE ulimit settings with default overrides. This approach is recommended for PowerDNS 4.3+ to maintain default configurations while applying specific overrides.

```yaml
- hosts: pdns-recursors
  vars:
    pdns_rec_config:
      allow-from:
        - "198.51.100.0/24"
        - "203.0.113.53/24"
      local-address: "203.0.113.53:5300"
    pdns_rec_service_overrides: '{{ default_pdns_rec_service_overrides | combine({"LimitNOFILE": 10000})'
  roles:
    - { role: PowerDNS.pdns_recursor }
```

--------------------------------

### Set Directory Permissions for PowerDNS Recursor

Source: https://github.com/powerdns/pdns_recursor-ansible/blob/master/README.md

Defines the octal mode for directories managed by the 'include-dir' setting in the recursor.conf. This ensures appropriate permissions for directory access, especially when write permissions are needed.

```yaml
pdns_rec_config_include_dir_mode: 0750
```

--------------------------------

### Service Overrides (YAML)

Source: https://github.com/powerdns/pdns_recursor-ansible/blob/master/README.md

Provides a mechanism to override service settings for the PowerDNS Recursor using systemd.

```YAML
pdns_rec_service_overrides:
  User: "{{ pdns_rec_user }}"
  Group: "{{ pdns_rec_group }}"
```

=== COMPLETE CONTENT === This response contains all available snippets from this library. No additional content exists. Do not make further requests.