Suddenly shutdown delayed -

Bob Goodwin bobgoodwin at
Wed Nov 23 23:38:31 UTC 2011

On 23/11/11 15:59, Bob Goodwin wrote:
>        For the last several days shutdown of this F-15 computer has
>        developed a delay.
>        When I click on shutdown it immediately switches to a black
>        screen with one line at the top:
>             sendmail " some numbers I couldn't copy" unqualified host
>        name [box9] unknown   sleeping for retry
>        There were some punctuation marks I left out too.
>        I don't know what I might have done to trigger this but it is
>        annoying since shutdown stops for what seems like a minute
>        before going through the normal process that I am accustomed to
>        seeing.
>        Where does it get this qualified host name from? What do I need
>        to fix or am I stuck until I install F-16 which I have been
>        putting off?
>        Bob

        I determined that fail2ban triggers the retry.

        Stopping fail2ban restores a normal shutdown.

        I guess further investigation of fail2ban configuration is in
        order? Any suggestions welcome.



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