[CentOS] fetchmail log messages I don't understand
strange at nsk.no-ip.org
Wed Oct 24 17:03:32 UTC 2007
On Wed, Oct 24, 2007 at 11:46:34AM -0500, Chuck Campbell wrote:
> I see these messages every time fetchmail pops my mail. I don't understand
> what certificates it is talking about, or how to straighten this out.
A certificate identifies the server, i.e., the client gets a piece of
information about the server that can be used to start a private
conversation. The certificate must be signed by an entity, that you
> fetchmail: Server CommonName mismatch: localhost != mail.mydomain.com
The certificate was issued for the server: 'localhost', but you're
connecting to 'mail.mydomain.com'. This could be a man-in-the-middle
> fetchmail: Server certificate verification error: self signed certificate
The certificate is signed by itself, not by an external entity that you
trust. You can't be sure you're talking with the correct server.
> fetchmail: Server certificate verification error: certificate has expired
Every certificate has a validity (start and end date when the
certificate is valid). Yours has expired.
> What do I need to read up on to understand this and find a fix?
Public key infrastructure (PKI):
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