algo/config.cfg

---

# This is the list of users to generate.
# Every device must have a unique user.
# You can add up to 65,534 new users over the lifetime of an AlgoVPN.
# User names with leading 0's or containing only numbers should be escaped in double quotes, e.g. "000dan" or "123".
# Email addresses are not allowed.
users:
  - phone
  - laptop
  - desktop

### Review these options BEFORE you run Algo, as they are very difficult/impossible to change after the server is deployed.

# SSH port for cloud deployments (doesn't apply to existing Ubuntu servers)
ssh_port: 4160

# VPN protocols to deploy
ipsec_enabled: true
wireguard_enabled: true
wireguard_port: 51820  # Change if blocked by your network (avoid 53/UDP)

# Use different IP for outbound traffic (DigitalOcean only)
alternative_ingress_ip: false

# Reduce MTU if connections hang (0 = auto-detect)
# See: docs/troubleshooting.md#various-websites-appear-to-be-offline-through-the-vpn
reduce_mtu: 0

# Ad blocking lists (modify /usr/local/sbin/adblock.sh after deployment to add more)
adblock_lists:
  - "https://raw.githubusercontent.com/StevenBlack/hosts/master/hosts"

# DNS encryption (required if using ad blocking)
dns_encryption: true

# Client isolation (set false for "road warrior" setup where clients can reach each other)
BetweenClients_DROP: true
block_smb: true          # Block SMB/CIFS traffic
block_netbios: true      # Block NETBIOS traffic

# Automatic reboot for security updates (time in server's timezone, default UTC)
unattended_reboot:
  enabled: false
  time: 06:00

### Privacy Settings ###
# StrongSwan connection logging (-1 = disabled, 2 = debug)
strongswan_log_level: -1

# Master switch for privacy enhancements (log rotation, history clearing, etc.)
# Set to false for debugging. For advanced privacy options, see roles/privacy/defaults/main.yml
privacy_enhancements_enabled: true

### Advanced users only below this line ###

# DNSCrypt providers (see https://github.com/DNSCrypt/dnscrypt-resolvers/blob/master/v2/public-resolvers.md)
dnscrypt_servers:
  ipv4:
    - cloudflare
#   - google
#   - YourCustomServer  # For NextDNS etc., add stamp below
  ipv6:
    - cloudflare-ipv6

custom_server_stamps:
# YourCustomServer: 'sdns://...'

# DNS servers when encryption is disabled
dns_servers:
  ipv4:
    - 1.1.1.1
    - 1.0.0.1
  ipv6:
    - 2606:4700:4700::1111
    - 2606:4700:4700::1001

# Store PKI in RAM disk when not retaining (MacOS/Linux only)
pki_in_tmpfs: true

# Regenerate ALL user certs on update-users (not just new users)
keys_clean_all: false

### VPN Network Configuration ###
strongswan_network: 10.48.0.0/16
strongswan_network_ipv6: '2001:db8:4160::/48'

wireguard_network_ipv4: 10.49.0.0/16
wireguard_network_ipv6: 2001:db8:a160::/48

# Keep NAT connections alive (0 = disabled)
wireguard_PersistentKeepalive: 0

### Experimental Performance Options ###
# These are experimental and may cause issues. Enable at your own risk.
# performance_skip_optional_reboots: false  # Skip non-kernel reboots
# performance_parallel_crypto: false        # Parallel key generation
# performance_parallel_packages: false      # Batch package installation
# performance_preinstall_packages: false    # Pre-install via cloud-init
# performance_parallel_services: false      # Configure VPN services in parallel

# Randomly generated IP address for the local dns resolver
local_service_ip: "{{ '172.16.0.1' | ansible.utils.ipmath(1048573 | random(seed=algo_server_name + ansible_fqdn)) }}"
local_service_ipv6: "{{ 'fd00::1' | ansible.utils.ipmath(1048573 | random(seed=algo_server_name + ansible_fqdn)) }}"

# Hide sensitive data in Ansible output during deployment (passwords, keys, etc.)
# This is NOT related to privacy/logging on the VPN server itself
algo_no_log: true

congrats:
  common: |
    "#                          Congratulations!                            #"
    "#                     Your Algo server is running.                     #"
    "#    Config files and certificates are in the ./configs/ directory.    #"
    "#              Go to https://whoer.net/ after connecting               #"
    "#        and ensure that all your traffic passes through the VPN.      #"
    "#                     Local DNS resolver {{ local_service_ip }}{{ ', ' + local_service_ipv6 if ipv6_support else '' }}                   #"
  p12_pass: |
    "#        The p12 and SSH keys password for new users is {{ p12_export_password }}       #"
  ca_key_pass: |
    "#        The CA key password is {{ CA_password|default(omit) }}       #"
  ssh_access: |
    "#      Shell access: ssh -F configs/{{ ansible_ssh_host|default(omit) }}/ssh_config {{ algo_server_name }}        #"

SSH_keys:
  comment: algo@ssh
  private: configs/algo.pem
  private_tmp: /tmp/algo-ssh.pem
  public: configs/algo.pem.pub

cloud_providers:
  azure:
    size: Standard_B1S
    osDisk:
      # The storage account type to use for the OS disk. Possible values:
      # 'Standard_LRS', 'Premium_LRS', 'StandardSSD_LRS', 'UltraSSD_LRS',
      # 'Premium_ZRS', 'StandardSSD_ZRS', 'PremiumV2_LRS'.
      type: Standard_LRS
    image:
      publisher: Canonical
      offer: 0001-com-ubuntu-minimal-jammy-daily
      sku: minimal-22_04-daily-lts
      version: latest
  digitalocean:
    # See docs for extended droplet options, pricing, and availability.
    # Possible values: 's-1vcpu-512mb-10gb', 's-1vcpu-1gb', ...
    size: s-1vcpu-1gb
    image: "ubuntu-22-04-x64"
  ec2:
    # Change the encrypted flag to "false" to disable AWS volume encryption.
    encrypted: true
    # Set use_existing_eip to "true" if you want to use a pre-allocated Elastic IP
    # Additional prompt will be raised to determine which IP to use
    use_existing_eip: false
    size: t2.micro
    image:
      name: "ubuntu-jammy-22.04"
      arch: x86_64
      owner: "099720109477"
    # Change instance_market_type from "on-demand" to "spot" to launch a spot
    # instance. See deploy-from-ansible.md for spot's additional IAM permission
    instance_market_type: on-demand
  gce:
    size: e2-micro
    image: ubuntu-2204-lts
    external_static_ip: false
  lightsail:
    size: nano_2_0
    image: ubuntu_22_04
  scaleway:
    size: DEV1-S
    image: Ubuntu 22.04 Jammy Jellyfish
    arch: x86_64
  hetzner:
    server_type: cpx11
    image: ubuntu-22.04
  openstack:
    flavor_ram: ">=512"
    image: Ubuntu-22.04
  cloudstack:
    size: Micro
    image: Linux Ubuntu 22.04 LTS 64-bit
    disk: 10
  vultr:
    os: Ubuntu 22.04 LTS x64
    size: vc2-1c-1gb
  linode:
    type: g6-nanode-1
    image: linode/ubuntu22.04
  local:

fail_hint:
  - Sorry, but something went wrong!
  - Please check the troubleshooting guide.
  - https://trailofbits.github.io/algo/troubleshooting.html

booleans_map:
  Y: true
  y: true