Hi, GuYz,
I'm here to share a trick that will help you o detect the Remote OS manually in a simple way.
You don't want any tools, just need a shell.
Open Command Prompt (In Linux Shell)
Ping a server.
Did You Notice TTL=128?
It is our card to find Remote OS. I'm using Windows 7 OS. My TTL is 128. Now it is clear that TTL will vary in different OSs.
Here the list of Operating System and its TTL. But notice, sometimes the TTL may be vary according setting of Admin. But this list is default TTL of Operating system.
+------------------------------------------------------|
| Operating System | TTL Value |
+------------------------------------------------------|
| Windows 9x/NT Intel | 32 |
| DigitalUnix 4.0 Alpha | 60 |
| AIX 4.3.x IBM/RS6000 | 60 |
| AIX 4.2.x IBM/RS6000 | 60 |
| Cisco 11.2 7507 | 60 |
| IRIX 6.x SGI | 60 |
| Unisys x Mainframe | 64 |
| Linux 2.2.x Intel | 64 |
| FTX(UNIX) 3.3 STRATUS | 64 |
| SCO R5 Compaq | 64 |
| FreeBSD 3.x Intel | 64 |
| OpenBSD 2.x Intel | 64 |
| Solaris 8 Intel/Sparc | 64 |
| Netware 4.11 Intel | 128 |
| Windows 9x/NT Intel | 128 |
| Windows 2000 Intel | 128 |
| Cisco 12.0 2514 | 255 |
| Solaris 2.x Intel/Sparc | 255 |
+------------------------------------------------------+
I'm here to share a trick that will help you o detect the Remote OS manually in a simple way.
You don't want any tools, just need a shell.
Open Command Prompt (In Linux Shell)
Ping a server.
Did You Notice TTL=128?
It is our card to find Remote OS. I'm using Windows 7 OS. My TTL is 128. Now it is clear that TTL will vary in different OSs.
Here the list of Operating System and its TTL. But notice, sometimes the TTL may be vary according setting of Admin. But this list is default TTL of Operating system.
+------------------------------------------------------|
| Operating System | TTL Value |
+------------------------------------------------------|
| Windows 9x/NT Intel | 32 |
| DigitalUnix 4.0 Alpha | 60 |
| AIX 4.3.x IBM/RS6000 | 60 |
| AIX 4.2.x IBM/RS6000 | 60 |
| Cisco 11.2 7507 | 60 |
| IRIX 6.x SGI | 60 |
| Unisys x Mainframe | 64 |
| Linux 2.2.x Intel | 64 |
| FTX(UNIX) 3.3 STRATUS | 64 |
| SCO R5 Compaq | 64 |
| FreeBSD 3.x Intel | 64 |
| OpenBSD 2.x Intel | 64 |
| Solaris 8 Intel/Sparc | 64 |
| Netware 4.11 Intel | 128 |
| Windows 9x/NT Intel | 128 |
| Windows 2000 Intel | 128 |
| Cisco 12.0 2514 | 255 |
| Solaris 2.x Intel/Sparc | 255 |
+------------------------------------------------------+
