From: Can Erkin Acar (canacar@eee.metu.edu.tr)
Date: Mon 11 Aug 2003 - 14:05:09 EEST
On Mon, Aug 11, 2003 at 01:06:54PM +0300, =?windows-1254?Q?Engin__=D6. ?= wrote:
> Merhaba ;
>
> Belki çok önemli olmayabilir ya da önemli bir konu degildir. Ama bu işin
> mimandarları cok fazla, uptime hastalığı..
>
> Genelde BSD ler hep en başta , fakat birtane bile OpenBSD yok, neden
> olabilir acaba ?
>
> Örnek :
>
> http://uptime.netcraft.com/up/today/top.avg.html
Her isletim sisteminde uptime belirlemek mumkun olmuyor.
Ozellikle OpenBSD tcp timestamp dahil pek cok bilgiyi
rastgele belirleyerek sistem hakkinda disari bilgi
sizmasini en aza indirmeye calisiyor.
http://uptime.netcraft.com/up/accuracy.html#uptime
Which operating systems provide uptime information ?
[snip]
Operating systems that do not provide uptime information include;
AIX
AS/400
Compaq Tru64
DG/UX
MacOS
MacOSX
NT3/Windows 95
NT4/Windows 98
NetBSD/OpenBSD
NetWare
OS/2
OS/390
SCO UNIX
SunOS 4
VM
Additionally HP-UX, Linux, Solaris and recent releases of FreeBSD
cycle back to zero after 497 days, exactly as if the machine had been
rebooted at that precise point. Thus it is not possible to see
a HP-UX, Linux or Solaris system with an uptime measurement above 497 days.