[rhelv6-list] what does hostid return?
Mark Whidby
mark.whidby at manchester.ac.uk
Fri Apr 4 14:53:32 UTC 2014
On Fri, 2014-04-04 at 10:34 -0400, Mirko Vukovic wrote:
> Hello,
>
>
> A software vendor asked me to provide a hostid for a software license.
>
>
> I typed in hostid, got an eight digit hexadecimal number and emailed
> it to them.
>
>
> However, they were looking for a 12 digit hex number.
>
> I sent them the hardware address of eth0.
>
>
> My question is: how is the hostid number obtained? Is it from a disk
> drive, or some other hardware. I could not find information online.
I can't remember how I found this out but if you split the 8 digits
of the number from hostid into pairs and convert them to decimal
you should get your IP address in the order:
octet2 octet1 octet4 octet3
Try this:
printf "%d %d %d %d\n" $(hostid | sed 's/../ 0x&/g')
I hope this helps.
--
Mark Whidby
Infrastructure Coordinator (Unix)
Physics/Chemistry/EAES/Mathematics Team
IT Services, Faculty of Engineering and Physical Sciences
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