Date: Mon, 11 May 2015 15:40:42 -0400 From: Jon Radel <jon@radel.com> To: freebsd-questions@freebsd.org Subject: Re: Certificate error Message-ID: <555105BA.4010702@radel.com> In-Reply-To: <5550C454.60202@gmail.com> References: <554FC878.7070401@gmail.com> <55501D92.2020102@radel.com> <5550C454.60202@gmail.com>
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This is a cryptographically signed message in MIME format. --------------ms070004020104070304070409 Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: quoted-printable On 5/11/15 11:01 AM, Ernie Luzar wrote: > >>> >>> >>> fetchmail: Server certificate verification error: self signed=20 >>> certificate >>> fetchmail: Missing trust anchor certificate: >>> >>> >> As a result, I'm kind of confused as to why fetchmail is complaining=20 >> about a missing trust anchor for a self-signed certificate. But that = >> does lead to the question: Did you install the CA certificate,=20 >> CA.cert, where fetchmail will use it for verifying certificates? You=20 >> should also realize that if you want to use your own CA, you're much=20 >> better off not creating a new one willy-nilly, as you need to install = >> the CA cert for every client which you want to actually verify the=20 >> certificates signed by that CA. See=20 >> http://lists.ccil.org/pipermail/fetchmail-friends/2006-April/010051.ht= ml=20 >> for more. > Fetchmail is being used as a diagnostic tool. Fetchmail will follow=20 > how a pop3 server is configured and in my case I am trying to test my=20 > pop3 qpopper server for TLS. From the original post posted fetchmail=20 > log you see that the pop3 server is offering STLS. This is what I am=20 > expecting. Then the log shows the certs are missing a anchor point.=20 Hence my question as to whether you installed the CA.cert for=20 fetchmail. Which you appear to have not answered. Nor do you seem to=20 have read the reference on the fetchmail mailing list that addresses how = to either make fetchmail less picky about certificates or install the CA = root certificate. > The posted cert build script is not some thing I pulled out of the air = > or something I make up as a guess.=20 Never said you were. I did point out that you were showing commands to=20 sign a certificate with your own CA in an e-mail where you were=20 complaining about being unable to get a self-signed certificate to=20 work. If you're mixing and matching bits and pieces of different=20 experiments in the same question, this rapidly becomes even more of a=20 futile exercise than it already is. > I have a few different combinations of openssl command sequences form = > different articles I read on the internet and all of them get the same = > error. I just point qpopper to use the key & cert files made=20 > separately by openssl commands.=20 Yeah, but the last little bit of logging doesn't have qpopper the least=20 bit upset so far as I can tell; it's got fetchmail upset. What does=20 fetchmail have installed? > What sequence of openssl commands do you suggest I use? > Alas, alack, I find it hard to care; either type of certificate can be=20 made to work with differing tradeoffs. Personally I simply use=20 https://www.cacert.org when I need a free certificate in a place where I = control the clients. But if you go that route, YOU STILL NEED TO=20 INSTALL THE CA'S ROOT CERTIFICATES FOR FETCHMAIL! I would suggest you=20 search for a tutorial on how TLS works that you're comfortable with and=20 study it with care. In any case, this: > fetchmail: POP3< STLS > fetchmail: POP3< . > fetchmail: POP3> STLS > fetchmail: POP3< +OK STLS > fetchmail: Server certificate: > fetchmail: Issuer Organization: Powerman > fetchmail: Issuer CommonName: pop.powerman.com > fetchmail: Subject CommonName: pop.powerman.com > fetchmail: pop.a1poweruser.com key fingerprint:=20 > 51:EC:3E:14:EA:E0:A9:97:1F:9F:D9:30:35:72:44:EA > > fetchmail: Server certificate verification error: self signed certifica= te > fetchmail: Missing trust anchor certificate: makes me think you may have a certificate installed just fine on qpopper = and are simply ignoring that the default behavior of fetchmail is to be=20 very picky about certificates. In other words, you may be abusing your=20 diagnostic tool something terrible, and results with your actual=20 client(s) may be completely different, depending on how they feel about=20 using TLS for verification as opposed to for *only* encryption. Read http://www.fetchmail.info/fetchmail-FAQ.html#K5 for more. --Jon Radel jon@radel.com --------------ms070004020104070304070409 Content-Type: application/pkcs7-signature; name="smime.p7s" Content-Transfer-Encoding: base64 Content-Disposition: attachment; filename="smime.p7s" Content-Description: S/MIME Cryptographic Signature MIAGCSqGSIb3DQEHAqCAMIACAQExCzAJBgUrDgMCGgUAMIAGCSqGSIb3DQEHAQAAoIIKrzCC BK8wggOXoAMCAQICEQDgI8sVEoNTia1hbnpUZ2shMA0GCSqGSIb3DQEBCwUAMG8xCzAJBgNV BAYTAlNFMRQwEgYDVQQKEwtBZGRUcnVzdCBBQjEmMCQGA1UECxMdQWRkVHJ1c3QgRXh0ZXJu YWwgVFRQIE5ldHdvcmsxIjAgBgNVBAMTGUFkZFRydXN0IEV4dGVybmFsIENBIFJvb3QwHhcN MTQxMjIyMDAwMDAwWhcNMjAwNTMwMTA0ODM4WjCBmzELMAkGA1UEBhMCR0IxGzAZBgNVBAgT EkdyZWF0ZXIgTWFuY2hlc3RlcjEQMA4GA1UEBxMHU2FsZm9yZDEaMBgGA1UEChMRQ09NT0RP IENBIExpbWl0ZWQxQTA/BgNVBAMTOENPTU9ETyBTSEEtMjU2IENsaWVudCBBdXRoZW50aWNh dGlvbiBhbmQgU2VjdXJlIEVtYWlsIENBMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKC AQEAibEN2npTGU5wUh28VqYGJre4SeCW51Gr8fBaE0kVo7SMG2C8elFCp3mMpCLfF2FOkdV2 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