1。ping命令判断远程主机系统
比如:
Pinging www.jpena.com [207.235.25.7] with 32 bytes of data:
Reply from 207.235.25.7: bytes=32 time=640ms TTL=107 --->有用!
Reply from 207.235.25.7: bytes=32 time=477ms TTL=107
Request timed out.
Reply from 207.235.25.7: bytes=32 time=469ms TTL=107
Ping statistics for 207.235.25.7:
Packets: Sent = 4, Received = 3, Lost = 1 (25% loss),
Approximate round trip times in milli-seconds:
Minimum = 469ms, Maximum = 640ms, Average = 396ms
这一段,有用的只是TTL这个值,TTL就是对方操作系统得值.下面给出一些常见操作系统的对照值
win2000---->108
winNT------>107
win9x------>128 or 127
solaris---->252
IRIX------->240
AIX------->247
Linux----->241 or 240
但这种方法有时候会失灵~!不过是最简单的方法!