Strange behaviour of hostid ?

John Summerfied debian at herakles.homelinux.org
Fri May 13 02:40:18 UTC 2005


Andrew Mather wrote:

> 
> Anyway...I've just run up two more Opteron machines, using FC3 for
> x86_64 and have edited the hosts file as before.
> 
> Now, if I run hostid, I get unique values, however they look very
> different to those on any of my other machines (a mix of Rh 7, 9, FC2
> and FC3 on i386 and x86_64).
> 
> The latest lot have the form:  ffffffff809d3f8e, whereas previous ones
> were like: 809d288e
> 
> Looks like the last part of the number is correct, but what about all
> those leading f's ?
> 
> My question is, are these normal, valid values ?
> 
> If not, any idea what could be causing this ?

I wasn't party to the previous discussion, but I will observe that I 
have a machine on which I have just installed RHL 7.3 and Nahant beta 1. 
It gets different IP addresses depending on which OS I boot: I don't 
know the reason.

It seems to me that on some of your systems hostid is picking up an IP6 
address or representing an IP4 address as IP6. As ssh does not (dratted 
thing!).


-- 

Cheers
John

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