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Date:      Wed, 11 Aug 1999 03:50:50 -0500 (CDT)
From:      Mike Pritchard <mpp@mpp.pro-ns.net>
To:        dwhite@resnet.uoregon.edu (Doug White)
Cc:        dburr@Powered-By.AC (Donald Burr), freebsd-questions@FreeBSD.ORG (FreeBSD Questions), freebsd-security@FreeBSD.ORG (FreeBSD Security)
Subject:   Re: umountall requests - what does this all mean?
Message-ID:  <199908110850.DAA07718@mpp.pro-ns.net>
In-Reply-To: <Pine.BSF.4.10.9908091639070.1164-100000@resnet.uoregon.edu> from Doug White at "Aug 9, 1999 04:39:42 pm"

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> On Sat, 7 Aug 1999, Donald Burr wrote:
> 
> > I keep getting log messages similar to these:
> > 
> > Aug  7 19:04:49 60-Hz mountd[150]: umountall request from 207.71.226.193 from unprivileged port
> > Aug  7 19:04:53 60-Hz mountd[150]: umountall request from 207.71.226.193 from unprivileged port
> > Aug  7 19:47:59 60-Hz mountd[150]: umountall request from 207.71.226.193 from unprivileged port
> > Aug  7 19:48:03 60-Hz mountd[150]: umountall request from 207.71.226.193 from unprivileged port
> > 
> > 207.71.226.193 is the IP addressed assigned to me by my ADSL provider, so
> > I can only assume that these packets are coming in through the ADSL modem.
> > 
> > What do these messages mean, and should I be worried about them?  And how
> > do I block them?
> 
> What IP is 60-Hz?  

60.Hz should be that hostname of the machine that generated the
syslog message.  Misconfiguration?  Maybe you need to recompile
some binaries/build/install world?

> It's probably another machine trying to dismount partitions and mountd
> doesn't recognize it.  Probably harmless.

On my own home local network I can generate these types of messages
my running mount/unmount as myself (e.g. non-root).  E.g.

mpp%  mount mpp:/shared /shared

Will generate a mountd messages on my NFS server that look like what you 
are seeing above.  Since the address you gave is supposed to be your
own machine, maybe you forgot to su to root before trying to
mount something?  Or maybe someone is try to spoof your IP address
and unmount all of your file systems.
-- 
Mike Pritchard
mpp@FreeBSD.ORG or mpp@mpp.pro-ns.net


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