Security Best Practices - Pterodactyl Wings

This page provides security best practices for deploying and operating Pterodactyl Wings in production environments.

Network Security

Firewall Configuration

Restrict access to Wings ports using firewall rules.

UFW (Ubuntu/Debian)

# Allow SSH
sudo ufw allow 22/tcp

# Allow Wings API (only from Panel IP)
sudo ufw allow from PANEL_IP to any port 8080 proto tcp

# Allow SFTP
sudo ufw allow 2022/tcp

# Allow game server ports (adjust as needed)
sudo ufw allow 25565:25665/tcp
sudo ufw allow 25565:25665/udp

# Enable firewall
sudo ufw enable

firewalld (CentOS/RHEL)

# Add Wings API (rich rule for IP restriction)
sudo firewall-cmd --permanent --add-rich-rule='rule family="ipv4" source address="PANEL_IP" port port="8080" protocol="tcp" accept'

# Add SFTP
sudo firewall-cmd --permanent --add-port=2022/tcp

# Add game server port range
sudo firewall-cmd --permanent --add-port=25565-25665/tcp
sudo firewall-cmd --permanent --add-port=25565-25665/udp

# Reload firewall
sudo firewall-cmd --reload

iptables

# Allow Wings API from Panel only
sudo iptables -A INPUT -p tcp -s PANEL_IP --dport 8080 -j ACCEPT
sudo iptables -A INPUT -p tcp --dport 8080 -j DROP

# Allow SFTP
sudo iptables -A INPUT -p tcp --dport 2022 -j ACCEPT

# Allow game servers
sudo iptables -A INPUT -p tcp --dport 25565:25665 -j ACCEPT
sudo iptables -A INPUT -p udp --dport 25565:25665 -j ACCEPT

# Save rules
sudo iptables-save | sudo tee /etc/iptables/rules.v4

Trusted Proxies

If Wings is behind a reverse proxy, configure trusted proxies:

api:
  trusted_proxies:
    - 127.0.0.1
    - 10.0.0.0/8
    - 172.16.0.0/12
    - 192.168.0.0/16

Configuration from config/config.go:98-99:

// A list of IP address of proxies that may send a X-Forwarded-For header
TrustedProxies []string `json:"trusted_proxies" yaml:"trusted_proxies"`

Trusted proxies are set in router/router.go:20-23:

if err := router.SetTrustedProxies(config.Get().Api.TrustedProxies); err != nil {
    panic(errors.WithStack(err))
}

CORS Configuration

Wings automatically sets CORS headers for the Panel:

// router/middleware/middleware.go:91-137
func SetAccessControlHeaders() gin.HandlerFunc {
    cfg := config.Get()
    origins := cfg.AllowedOrigins
    location := cfg.PanelLocation

    return func(c *gin.Context) {
        c.Header("Access-Control-Allow-Origin", location)
        c.Header("Access-Control-Allow-Credentials", "true")
        c.Header("Access-Control-Allow-Methods", "GET, POST, PATCH, PUT, DELETE, OPTIONS")
        c.Header("Access-Control-Allow-Headers", "Accept, Accept-Encoding, Authorization, Cache-Control, Content-Type, Content-Length, Origin, X-Real-IP, X-CSRF-Token")
        c.Header("Access-Control-Max-Age", "7200")

        // Validate origin
        origin := c.GetHeader("Origin")
        if origin != location {
            for _, o := range origins {
                if o == "*" || o == origin {
                    c.Header("Access-Control-Allow-Origin", o)
                    break
                }
            }
        }
        c.Next()
    }
}

Add additional allowed origins:

allowed_origins:
  - https://panel.example.com
  - https://admin.example.com

Never use "*" for allowed origins in production as it defeats CORS security.

Private Network Access

For internal network deployments:

allow_cors_private_network: true

This sets the Access-Control-Request-Private-Network header for RFC1918 networks.

SSL/TLS Best Practices

Always Use HTTPS

Never run Wings without SSL in production:

api:
  ssl:
    enabled: true
    cert: /etc/letsencrypt/live/wings.example.com/fullchain.pem
    key: /etc/letsencrypt/live/wings.example.com/privkey.pem

Certificate Management

Use Let’s Encrypt for free, automated certificates
Enable auto-renewal via Certbot timer
Monitor expiration with alerting
Use full chain (fullchain.pem, not cert.pem)

See SSL Certificates for detailed configuration.

TLS Version Enforcement

Wings enforces TLS 1.2+ by default:

// config/config.go:48-49
MinVersion: tls.VersionTLS12,
MaxVersion: tls.VersionTLS13,

Never disable this or allow TLS 1.0/1.1.

Authentication Security

Token Management

Generate strong tokens:

openssl rand -base64 32

Store securely:

sudo chmod 600 /etc/pterodactyl/config.yml
sudo chown root:root /etc/pterodactyl/config.yml

Rotate regularly (quarterly recommended)
Use systemd credentials for enhanced security:

# /etc/systemd/system/wings.service
[Service]
LoadCredential=token:/etc/pterodactyl/credentials/token
Environment=WINGS_TOKEN=file://${CREDENTIALS_DIRECTORY}/token

WebSocket Security

WebSocket JWTs are automatically managed by the Panel:

Tokens expire after configured duration
Tokens are denied on Wings restart
Tokens can be invalidated per-user/server
Rate limiting prevents abuse

See Authentication for details.

SFTP Authentication

Prefer public key authentication:

Generate SSH key:

ssh-keygen -t ed25519 -C "pterodactyl-sftp"

Add public key in Panel under user settings
Connect:

sftp -P 2022 -i ~/.ssh/id_ed25519 username.serverid@wings.example.com

Disable password authentication if not needed (Panel configuration).

System Hardening

Operating System Updates

Keep your system updated:

# Ubuntu/Debian
sudo apt update && sudo apt upgrade -y

# CentOS/RHEL
sudo yum update -y

# Enable automatic security updates (Ubuntu)
sudo apt install unattended-upgrades
sudo dpkg-reconfigure --priority=low unattended-upgrades

Wings Updates

Update Wings regularly:

# Stop Wings
sudo systemctl stop wings

# Download latest
curl -L -o /usr/local/bin/wings "https://github.com/pterodactyl/wings/releases/latest/download/wings_linux_$([[ "$(uname -m)" == "x86_64" ]] && echo "amd64" || echo "arm64")"

# Set permissions
sudo chmod +x /usr/local/bin/wings

# Start Wings
sudo systemctl start wings

Subscribe to Wings releases for notifications.

Docker Security

Keep Docker updated:

sudo apt update && sudo apt install docker-ce docker-ce-cli containerd.io

Enable user namespace remapping:

// /etc/docker/daemon.json
{
  "userns-remap": "default"
}

sudo systemctl restart docker

Use Docker rootless mode (advanced):

curl -fsSL https://get.docker.com/rootless | sh

Limit Docker daemon attack surface:

// /etc/docker/daemon.json
{
  "icc": false,
  "userland-proxy": false,
  "no-new-privileges": true
}

Kernel Security

Enable security modules: AppArmor (Ubuntu/Debian):

sudo aa-enforce /etc/apparmor.d/*

SELinux (CentOS/RHEL):

sudo setenforce 1
sudo sed -i 's/SELINUX=.*/SELINUX=enforcing/' /etc/selinux/config

File System Security

Restrict permissions:

sudo chmod 700 /var/lib/pterodactyl
sudo chmod 700 /etc/pterodactyl

Enable disk quotas (if supported):

sudo apt install quota
# Add usrquota,grpquota to /etc/fstab
sudo quotacheck -cum /
sudo quotaon /

Monitor disk usage:

df -h
du -sh /var/lib/pterodactyl/volumes/*

Container Isolation

Resource Limits

Enforce container limits:

docker:
  container_pid_limit: 512  # Prevent fork bombs
  tmpfs_size: 100           # Limit /tmp to 100MB

Network Isolation

Isolate containers from each other:

docker:
  network:
    enable_icc: false  # Disable inter-container communication

Rootless Containers

For maximum security, run Wings in rootless mode:

system:
  user:
    rootless:
      enabled: true
      container_uid: 0
      container_gid: 0

Requirements:

Docker configured for rootless
Wings running as non-root user
Proper UID/GID mapping

See Permissions for configuration details.

Monitoring & Logging

Enable Logging

Wings logs to /var/log/pterodactyl/wings.log by default. Configure log rotation:

system:
  enable_log_rotate: true  # Default

Wings automatically creates /etc/logrotate.d/wings:

/var/log/pterodactyl/wings.log {
    size 10M
    compress
    delaycompress
    dateext
    maxage 7
    missingok
    notifempty
    postrotate
        /usr/bin/systemctl kill -s HUP wings.service >/dev/null 2>&1 || true
    endscript
}

Monitor Logs

Real-time monitoring:

sudo journalctl -u wings -f

View recent errors:

sudo journalctl -u wings -p err --since today

Check Wings status:

sudo systemctl status wings

Intrusion Detection

Install fail2ban for brute force protection:

sudo apt install fail2ban

Create /etc/fail2ban/jail.d/wings-sftp.conf:

[wings-sftp]
enabled = true
port = 2022
logpath = /var/log/pterodactyl/wings.log
maxretry = 5
bantime = 3600

System Monitoring

Monitor system resources:

# CPU, Memory, Disk
htop

# Disk I/O
iotop

# Network
iftop

# Docker containers
docker stats

Consider monitoring solutions:

Prometheus + Grafana
Netdata
Datadog
New Relic

Backup Security

Secure Backup Storage

Encrypt backups at rest and in transit
Use dedicated credentials for backup storage
Restrict backup access to Wings only
Enable versioning on S3/object storage

Local Backup Permissions

sudo chmod 700 /var/lib/pterodactyl/backups
sudo chown pterodactyl:pterodactyl /var/lib/pterodactyl/backups

Backup Configuration

system:
  backup_directory: /var/lib/pterodactyl/backups
  backups:
    write_limit: 50  # MB/s, prevent I/O saturation
    compression_level: best_speed  # or best_compression

Incident Response

Security Checklist

If you suspect a compromise:

Isolate the system:

sudo systemctl stop wings
sudo iptables -A INPUT -j DROP

Review logs:

sudo journalctl -u wings --since "1 hour ago" > /tmp/wings-logs.txt
sudo grep -r "error\|failed\|denied" /var/log/pterodactyl/

Check for unauthorized access:

sudo last -a
sudo lastlog
sudo grep -r "Accepted" /var/log/auth.log

Verify file integrity:

find /var/lib/pterodactyl -type f -mtime -1  # Files modified in last day

Rotate credentials:

Change Wings token
Regenerate SFTP host key
Revoke all WebSocket tokens

Update and patch:

sudo apt update && sudo apt upgrade -y

Contact Points

Security issues: security@pterodactyl.io
Discord: https://discord.gg/pterodactyl
Documentation: https://pterodactyl.io/wings

Compliance & Standards

PCI DSS Considerations

If handling payment card data:

Encrypt all traffic (TLS 1.2+)
Implement logging and monitoring
Restrict network access via firewall
Regular security updates
Access control and authentication

Encrypt personal data at rest and in transit
Implement access logging
Data retention policies
User data deletion capabilities
Privacy by design

SOC 2 Alignment

Access controls (authentication, authorization)
Monitoring and logging
Change management (updates, patches)
Incident response procedures
Data protection (encryption, backups)

Configuration Review Checklist

Use this checklist to verify your security configuration:

Additional Resources

Summary

Key security principles for Wings:

Defense in depth: Multiple security layers
Least privilege: Minimal permissions required
Encryption everywhere: TLS for all communications
Regular updates: System, Wings, and Docker
Monitoring and logging: Detect and respond to incidents
Isolation: Containers, users, and networks
Strong authentication: Tokens, keys, and validation
Backup and recovery: Tested and encrypted

Follow these practices to maintain a secure Wings deployment.

​Network Security

​Firewall Configuration

​UFW (Ubuntu/Debian)

​firewalld (CentOS/RHEL)

​iptables

​Trusted Proxies

​CORS Configuration

​Private Network Access

​SSL/TLS Best Practices

​Always Use HTTPS

​Certificate Management

​TLS Version Enforcement

​Authentication Security

​Token Management

​WebSocket Security

​SFTP Authentication

​System Hardening

​Operating System Updates

​Wings Updates

​Docker Security

​Kernel Security

​File System Security

​Container Isolation

​Resource Limits

​Network Isolation

​Rootless Containers

​Monitoring & Logging

​Enable Logging

​Monitor Logs

​Intrusion Detection

​System Monitoring

​Backup Security

​Secure Backup Storage

​Local Backup Permissions

​Backup Configuration

​Incident Response

​Security Checklist

​Contact Points

​Compliance & Standards

​PCI DSS Considerations

​GDPR Compliance

​SOC 2 Alignment

​Configuration Review Checklist

​Additional Resources

​Summary

Network Security

Firewall Configuration

UFW (Ubuntu/Debian)

firewalld (CentOS/RHEL)

iptables

Trusted Proxies

CORS Configuration

Private Network Access

SSL/TLS Best Practices

Always Use HTTPS

Certificate Management

TLS Version Enforcement

Authentication Security

Token Management

WebSocket Security

SFTP Authentication

System Hardening

Operating System Updates

Wings Updates

Docker Security

Kernel Security

File System Security

Container Isolation

Resource Limits

Network Isolation

Rootless Containers

Monitoring & Logging

Enable Logging

Monitor Logs

Intrusion Detection

System Monitoring

Backup Security

Secure Backup Storage

Local Backup Permissions

Backup Configuration

Incident Response

Security Checklist

Contact Points

Compliance & Standards

PCI DSS Considerations

GDPR Compliance

SOC 2 Alignment

Configuration Review Checklist

Additional Resources

Summary