Hi all,
I use fetchmail to retrieve mail from my university's IMAP server
with SSL enabled. After an upgrade to the latest stable version,
whenever I run fetchmail, I get the following output:
[12:12 PM]wwong ~ $ fetchmail
fetchmail: Server certificate verification error: unable to get local issuer
certificate
fetchmail: Server certificate verification error: certificate not trusted
fetchmail: Server certificate verification error: unable to verify the first
certificate
But since I didn't request fetcmail to strictly match certificates,
the mail still downloads fine. Now, the server certificate from the
university mail server is signed by the university's computing staff,
and I know that if I use webmail or other resources, I can download
the certificate and, when a dialog pops up asking if I want to trust
the CA, I can set it so that firefox won't ask anymore in the future.
My question is, how do I import a certificate authority so that
fetchmail would recognize it? From the man page it says
--sslcertck
(Keyword: sslcertck) Causes fetchmail to strictly check the
server certificate against a set of local trusted certificates
(see the sslcertpath option). If the server certificate is not
signed by one of the trusted ones (directly or indirectly), the
SSL connection will fail. This checking should prevent man-in-
the-middle attacks against the SSL connection. Note that CRLs
are seemingly not currently supported by OpenSSL in certificate
verification! Your system clock should be reasonably accurate
when using this option!
--sslcertpath <directory>
(Keyword: sslcertpath) Sets the directory fetchmail uses to look
up local certificates. The default is your OpenSSL default one.
The directory must be hashed as OpenSSL expects it - every time
you add or modify a certificate in the directory, you need to
use the c_rehash tool (which comes with OpenSSL in the tools/
subdirectory).
so I guess my question is how to import a certificate into OpenSSL?
Thanks,
Willie
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