Shulou(Shulou.com)05/31 Report--

The TTL value of ping initially determines which types of operating systems there are. I believe many inexperienced people don't know what to do about it. Therefore, this article summarizes the causes and solutions of the problem. Through this article, I hope you can solve this problem.

It is often possible to judge some types of operating systems by the ttl value of ping, which is sorted out here as follows

The TTL field value of ICMP echo reply for UNIX and UNIX-like operating systems is 255,

Compaq Tru64 5.0The TTL field value of ICMP echo reply is 64

The TTL field value of Microsoft Windows NT/2K operating system ICMP echo reply is 128,

The TTL field value of Microsoft Windows 95 operating system ICMP echo reply is 32.

Of course, these TTL values can also be changed, and Windows series systems can be achieved by modifying the following key values in the registry:

[HKEY_LOCAL_MACHINE\ sys tem\ CurrentControlSet\ Services\ Tcpip\ Parameters]

"DefaultTTL" = dword:000000ff

255---FF

128Murray 80

64MULTHAUMUR 40

32 / 32 / 20 / 32 / 32 / 32 / 20

After reading the above, have you mastered the TTL value of ping and how to determine the type of operating system? If you want to learn more skills or want to know more about it, you are welcome to follow the industry information channel, thank you for reading!

Welcome to subscribe "Shulou Technology Information " to get latest news, interesting things and hot topics in the IT industry, and controls the hottest and latest Internet news, technology news and IT industry trends.