Re: Security warning with sshd

From: Pat Maddox (pergesu_at_gmail.com)
Date: 08/21/05

  • Next message: Remko Lodder: "Re: Security warning with sshd" 
    Date: Sun, 21 Aug 2005 04:07:47 -0600
To: FreeBSD Questions <freebsd-questions@freebsd.org>, remko@freebsd.org

    On 8/21/05, Remko Lodder <remko@freebsd.org> wrote:
    > Pat Maddox wrote:
    > > In my recent security email, I got the following errors:
    > > cantona.dnswatchdog.com login failures:
    > > Aug 20 02:37:19 cantona sshd[9444]: fatal: Write failed: Operation not permitted
    > > Aug 20 04:30:42 cantona sshd[16142]: fatal: Write failed: Operation
    > > not permitted
    > > Aug 20 21:21:51 cantona sshd[45716]: fatal: Write failed: Operation
    > > not permitted
    > >
    > > So three questions: What is it? Should I be worried? How can I fix it?
    > >
    > > Thanks,
    > > Pat
    >
    > A couple of messages that i read when searching through google
    > appear to indicate that it might rely on your firewall, bad
    > packets that are not in state anymore and such and then gets
    > blocked by your firewall.
    >
    > Could you provide some more details of events happening around
    > the same time of the messages you posted here? Perhaps something
    > else precedes the message which gives more information on what
    > might have happened...
    >
    > Url with some information:
    > http://lists.freebsd.org/pipermail/freebsd-pf/2005-August/001337.html
    > (and related messages)
    >
    > Cheers,
    > Remko
    >
    > --
    > Kind regards,
    >
    > Remko Lodder ** remko@elvandar.org
    > FreeBSD ** remko@FreeBSD.org
    > Reporter DSINET ** remko@DSINet.org
    >

    I don't know what exactly was happening, but after looking at that
    link my guess is that it occurred when I enabled the firewall. If I'm
    logged in and enable it, my ssh connection is dropped...except I don't
    get disconnected, the ssh connection is simply unresponsive. Which
    makes sense since the firewall just went up. But maybe that's part of
    the problem?
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  • Next message: Remko Lodder: "Re: Security warning with sshd"

    Relevant Pages

    • Re: Security warning with sshd
      ... Pat Maddox wrote: ... > In my recent security email, ... > cantona.dnswatchdog.com login failures: ... blocked by your firewall. ...
      (FreeBSD-Security)
    • Re: Security warning with sshd
      ... Pat Maddox wrote: ... > In my recent security email, ... > cantona.dnswatchdog.com login failures: ... blocked by your firewall. ...
      (freebsd-questions)