TTL-Based OS Detection Script

This script uses the TTL (Time to Live) value from a ping response to infer the operating system or device type of the target IP address. It's a simple yet effective way to gain insights into the remote system.

Usage

1. Run the script. It will ask for IP and it will execute a ping command and analyze the TTL value in the response to determine the OS or device type.

Supported TTL Values

• Windows: TTL = 128
• Linux/FreeBSD/OSX/Juniper/HP-UX: TTL = 64
• Cisco Devices: TTL = 255
• Solaris/AIX: TTL = 254
• Windows Server 2003/XP: TTL = 252
• Novell: TTL = 240
• HP-UX: TTL = 200
• MacOS: TTL = 190
• MacOS (Alternate): TTL = 127
• IBM OS/2: TTL = 100
• AIX: TTL = 60
• Windows 95/98/ME: TTL = 50
• BSDI: TTL = 48
• SunOS: TTL = 30

Example

To check the OS of Google's public DNS server:

IP = "8.8.8.8"
# Run the script and it will output:
# "Running OS: Linux/FreeBSD/OSX/Juniper/HP-UX"