Hi,

I also have concerns about depending on DNS.

I want to be sure I understand what you are suggesting as an
alternative.
Is the mapping from IP to hostname operator-defined in a static way?

What happens, network-management-wise, when an IP address changes for
a given host, or more importantly, is reissued to a different host?

David Harrington
FutureWei Technologies, a Huawei company
[EMAIL PROTECTED] 
[EMAIL PROTECTED]
[EMAIL PROTECTED]

> -----Original Message-----
> From: Balazs Scheidler [mailto:[EMAIL PROTECTED] 
> Sent: Thursday, April 20, 2006 3:41 AM
> To: Anton Okmianski (aokmians)
> Cc: [EMAIL PROTECTED]
> Subject: RE: [Syslog] Summary of the syslog/tls issues resolving
> 
> 
> On Wed, 2006-04-19 at 18:01 -0400, Anton Okmianski (aokmians) wrote:
> > Balazs:
> > 
> > I don't think DNS lookup for validating clients will work 
> in all cases.  If 
> > syslog clients are NAT'ed (and many CPEs are), it does not 
> make sense for 
> > them to have a hostname.  You will not see the real source 
> IP on syslog 
> > server. So, if we recommend it as basic standard binding 
> its use will be 
> > limited.  
> 
> Yes, I did not like the approach either, I just could not come up
with
> anything else.
> 
> > 
> > I agree that server validation is different. In this case 
> you have the 
> > ultimate source IP and hostname lookup helps. You are 
> validating that the 
> > certificate the server presented is not just signed by 
> right CA, but also 
> > authenticates the server you intended to connect to.  
> 
> I think we should not rely on DNS in this case either, but rather
> require the operator to supply a hostname.
> 
> -- 
> Bazsi
> 
> 
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