PYDNS Scanner

🎉 What's New in v2.0.0

🌐 Three Scan Modes

• Slipstream — Classic proxy testing with SOCKS5 support
• SlipNet — Full SlipNet configs support for DNSTT and NoiseDNS tunnels with SOCKS5 / SSH authentication and auto-detected auth method
• DNS Scan — New lightweight mode: just insert a domain, set concurrency, and scan — no proxy testing, no authentication. Tests security, DNS types, ping, resolved IP, EDNS0, and more

🔀 New Scan Strategy — Bidirectional Multi-Range

Scanner now scans from the start and end of each IP range simultaneously across multiple ranges, combined with random shuffle — faster performance and higher chance of finding working DNS servers compared to linear scanning.

🧪 Auto DNS Type Check + Scoring

All DNS types (A, AAAA, MX, TXT, NS) are automatically tested and scored per server — same scoring system as the SlipNet scanner.

⚙️ New Advanced Section

Fully customizable scanning parameters:

• Minimum proxy ping threshold for proxy test
• DNS connection timeout
• Proxy end-to-end test timeout
• Parallel proxy test count
• Custom shuffle steps
• Proxy test URL + expected response status code
• Set MTU (experimental OS-level MTU override)
• Query size for SlipNet (DNSTT / NoiseDNS)

🎨 UX Improvements

• Enhanced scan statistics — Redesigned stats display with clearer layout
• Better result table — Improved writing and formatting in the results table
• New proxy test status UI — Real-time proxy test feedback
• Better Filtered IP detection — More accurate identification of filtered IPs
• Log section always visible — Log panel is no longer toggleable; always shown during scans

🔧 Experimental: Set OS MTU

Scan with a specified MTU value for advanced network tuning.

⚡ Performance

• Significantly higher scan performance overall
• Auto detect auth method for SlipNet (DNSTT / NoiseDNS)

⚙️ Bug Fixes

• Fixed UI freeze after scanning large DNS ranges
• Fixed speed drop after 500K+ scanned IPs
• Fixed memory leak during long-running scans
• Updated dependencies to resolve Dependabot low-severity vulnerability alerts

✨ Features

• � Three Scan Modes — Slipstream (proxy test), SlipNet (DNSTT / NoiseDNS tunnels), DNS Scan (lightweight, no proxy/auth)
• 🔀 Bidirectional Multi-Range Scan — Scans from start and end of each IP range simultaneously with random shuffle for faster discovery
• 🧪 Auto DNS Type Scoring — All DNS types (A, AAAA, MX, TXT, NS) tested and scored automatically per server
• ⚙️ Advanced Settings — Customize proxy ping threshold, DNS timeout, proxy E2E timeout, parallel proxy count, shuffle steps, test URL, MTU, and query size
• 🔐 Security Testing — Detects hijacked, filtered, open resolver, and DNSSEC per server
• 🌐 Resolved IP Column — Tests each DNS server by resolving google.com, result shown in table
• 📡 ISP Detection — AS number and organisation name via ip-api.com
• 🌍 IPv4 / IPv6 Detection — Reports which IP versions each server supports
• 📶 EDNS0 Detection — Tests and displays EDNS0 extension support
• 🔌 Slipstream Rust Plus — Faster proxy testing with false-positive fixes and independent SOCKS5 test
• 🔗 SlipNet Support — DNSTT / NoiseDNS tunnel testing with SOCKS5 / SSH auth and auto-detected auth method
• 🧮 Smart Multi-key Sort — Auto-sorts by proxy pass → DNSSEC → ping for best servers first
• ⚡ High Performance — Asynchronous scanning with configurable concurrency
• ⏸️ Pause / Resume / Shuffle — Full live scan control
• 📊 Real-time Statistics — Live pass/fail/found counters updated throughout the scan
• 🔍 Smart DNS Detection — Detects working DNS servers even with NXDOMAIN / NODATA responses
• 🎲 Random Subdomain Support — Avoid cached responses with random subdomains
• 🌐 Multiple DNS Types — Supports A, AAAA, MX, TXT, NS records
• 📝 Always-on Log Panel — Log section is always visible during scans
• 🌍 Multi-Platform Auto-Download — Automatically downloads the correct Slipstream client for your platform
• 📥 Resume Downloads — Smart download resume on network interruptions with retry logic
• 💾 Auto-save Results — Automatic CSV export with per-server detail
• 📁 CIDR Management — Built-in Iran IPs + custom file picker
• 🚀 Memory Efficient — Streaming IP generation without loading all IPs into memory
• 🔔 Audio Alerts — Optional sparkle sound on successful proxy test
• 🔧 Experimental MTU — Set OS-level MTU for advanced network scanning

📋 Requirements

Python Version

• Python 3.11 or higher

Dependencies

# Core dependencies (always installed — works on every platform including Android/Termux)
textual>=0.47.0       # TUI framework
aiodns>=3.1.0         # Async DNS resolver
httpx[socks]>=0.25.0  # HTTP client with SOCKS5 support for proxy testing
loguru>=0.7.0         # Advanced logging

# Optional "full" extras (pip install pydns-scanner[full]) — desktop only
google-re2>=1.0       # Fast RE2 regex engine (falls back to stdlib re)
orjson>=3.9.0         # Fast JSON serialization (falls back to stdlib json)
pyperclip>=1.8.0      # Clipboard support (silently disabled when absent)

Optional

• Slipstream Client - For proxy testing functionality (5 concurrent tests)
  • Automatic Download: The application automatically detects your platform and downloads the correct client
  • Smart Detection: Detects existing installations (including legacy filenames)
  • Resume Support: Partial downloads are saved and can be resumed on retry
  • Supported platforms:
    • Linux (x86_64): slipstream-client-linux-amd64
    • Linux (ARM64): slipstream-client-linux-arm64
    • Windows (x86_64): slipstream-client-windows-amd64.exe
    • macOS (ARM64): slipstream-client-darwin-arm64
    • macOS (Intel): slipstream-client-darwin-amd64
    • Android (ARM64): slipstream-client-linux-arm64
  • Manual download available from: slipstream-rust-plus-deploy releases

📦 Bundled Slipstream Clients