Mailinglist Archive: opensuse-security (757 mails)

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RE: [suse-security] POP3S using qpopper and sslwrapper
  • From: "Evert Smit" <admin@xxxxxxxxx>
  • Date: Mon, 14 Jan 2002 08:40:16 +0100
  • Message-id: <NEBBJLPNDGJFKFMFLOPJCEKDCOAA.admin@xxxxxxxxx>
Hoi Stephan,

I tried your input and here is the result in the mail log, i believe this is
due to the rpm install. yould you know how to change this?

Jan 14 08:28:25 eoel popper[7136]: The "tls-support" option cannot be used
because a required compile-time option was not set. See the Administrator's
Guide for more information (line 2 of config file /etc/qpopper.cnf)


-----Original Message-----
From: Stephan Krause [mailto:Stephan.Krause@xxxxxxxxxxx]
Sent: Monday, January 14, 2002 8:19 AM
To: Evert Smit
Cc: suse-security@xxxxxxxx
Subject: Re: [suse-security] POP3S using qpopper and sslwrapper

Evert Smit wrote:

>Hi all,
>first post to the group, so bear with me :)
>I am trying to setup an encryptet way to enable myself and my company an
>encryted communication with our external mail server.
>So far i have gotten the following: Suse 7.3 with qpopper 4.x and sslwrap
>Entry in the inetd.conf file
>- pop3s stream tcp nowait root /usr/sbin/popper -s /usr/sbin/sslwrap -cert
>/usr/ssl/certs/certificatename.pem -port 110
>Error i get in /var/log/mail
>Jan 14 07:50:12 eoel -s[6075]: (null) at
>(x.x.x.x): -ERR POP EOF or I/O Error [popper.c:794]
>This concludes to me, that i've been doing something wrong :) Now if
>has done this before, would it be possible to englighten me, as i cannot
>really find the same information on the web. And while we're at it, i would
>lke to do the same thing for the smtp protocol using sendmail.
>oot: if someone knows a link where setup of sendmail with user
>authentication is explained.. i will be thankful for the rest of my life ;)

Hi Evert,

POP3S works on port 995

try this:

pop3 stream tcp nowait root /usr/sbin/tcpd
/opt/popper/sbin/popper -s -d ## port 110
pop3s stream tcp nowait root /usr/sbin/tcpd
/opt/popper/sbin/popper -f <POPPER-CFG-FILE> ## port 995
## (you can use both in parallel)

set clear-text-password = ssl
set tls-support = alternate-port
set tls-version = all
set tls-server-cert-file = <MAIL-SERVER-CERTIFICATE>

see the documentation how to generate your own certificate (with openssl):


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