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Re: [hobbit] Invalid client message
- To: hobbit (at) hswn.dk
- Subject: Re: [hobbit] Invalid client message
- From: henrik (at) hswn.dk (Henrik Stoerner)
- Date: Mon, 12 Sep 2005 12:41:06 +0200
- References: <43255280.9040908@mpgabi2004.de>
- User-agent: Mutt/1.5.6+20040907i
On Mon, Sep 12, 2005 at 12:03:44PM +0200, Christian Schlüter wrote:
> The hobbitd section reports the following status message:
>
> Latest errormessages:
> Invalid client message - blank hostname
>
> Now I would like to see the IP of the server sending this invalid client
> message to solve the Problem.
OK, added this for the next version.
> In general the IP-Adresses of the senders should be checked by comparing
> it with a nslookup of the hostname, because it's a security issue when
> any host can send the reports for another host (It works - I just
> tried!) which could be damaged without that the HobbitMon notices it...
DNS lookups are expensive, and a host may not have a DNS entry at all.
So it's done differently - check the hobbitd(8) man-page for the
"--status-senders" option. What you've seen is just the default
behaviour.
Regards,
Henrik