Curious log entry

[Alan Jackson]

I got several of these in my logfile yesterday - is this innocent
or is it something I should pursue?

Jun 28 11:18:22 earthman login[13633]: FAILED LOGIN 1 FROM 178-64-189-66.wo.cpe.charter-ne.com FOR postgres, Authentication service cannot retrieve authentication info.
Jun 28 11:18:27 earthman login[13633]: FAILED LOGIN 2 FROM 178-64-189-66.wo.cpe.charter-ne.com FOR postgres, Authentication service cannot retrieve authentication info.
Jun 28 11:23:07 earthman login[13673]: FAILED LOGIN SESSION FROM 178-64-189-66.wo.cpe.charter-ne.com FOR (null), Error in service module

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| Alan K. Jackson            | To see a World in a Grain of Sand      |
| alan at ajackson.org          | And a Heaven in a Wild Flower,         |
| www.ajackson.org           | Hold Infinity in the palm of your hand |
| Houston, Texas             | And Eternity in an hour. - Blake       |
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