🔐 SSH & UFW Port Manager Tool

A powerful, interactive command-line tool that helps you:

• Change your SSH port safely
• Remove/Block SSH ports
• Allow multiple ports at once (TCP / UDP / Both)
• Block multiple ports at once (TCP / UDP / Both)
• Support for ranges like 1000-2000
• Support for comma + space separated ports
• Correct IPv4/IPv6 detection
• Auto-backup of sshd_config
• UFW rule reset with backup
• Clean, menu-based interface

This script is ideal for VPS owners, hosting providers, panel owners, and anyone who wants safer, easier firewall & SSH management.

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🚀 Features

🔑 SSH Management

• Change SSH port (with auto UFW handling)
• Remove SSH port safely
• Auto-backup for /etc/ssh/sshd_config
• Automatic SSH restart with fallback

🔥 Firewall Management (UFW)

• Allow multiple ports at once
• Block multiple ports at once
• Support:
  • Single ports → 22
  • Multiple ports → 80,443,25565
  • Space-separated → 80 443 25565
  • Ranges → 1000-1500
  • Mixed → 80,443 1000-1010
• Allow:
  • TCP only
  • UDP only
  • TCP + UDP
• Block (deny + remove existing rules):
  • TCP only
  • UDP only
  • TCP + UDP

🌐 Correct IP Detection

• IPv4 via ipv4.icanhazip.com
• IPv6 via ipv6.icanhazip.com
• No false IPv6 → IPv4 fallback

🛡 Safety

• Auto backup of UFW rules during reset
• Auto sshd restart
• No accidental lockout warnings
• UFW operations handled safely & silently

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📥 Installation & Run

Run directly with:

bash <(curl -s https://raw.githubusercontent.com/teamdaddy1/SSH-Change/main/ssh-port.sh)