This repository holds the working configuration for my multi-domain Gnupg Web Key Directory service install.
This service runs fetchmail against external POP & SMTP servers, checking at
a prescribed interval.
To start, fetchmail, running as a daemon, checks for new messages every
4 minutes, if a message is received, procmail process the message and passes
it off to gpg-wks-server.
Once gpg-wks-server finishes processing the message, it normally will send a
reply, this is accomplished via ssmtp.
First we need to install the needed software.
apt update; apt -y install gnupg git fetchmail ssmtp procmail
Then install the config.
mkdir -p /var/lib/gnupg
git clone [email protected]:mattrude/gnupg-directory-service.git /var/lib/gnupg/wks
Run the install script.
/var/lib/gnupg/wks/wks-maintance-script.sh
After the script has finised, confirm fetchmail is running
ps aux |grep fetchmail |grep -v grep
Update Cron.
18 2 * * * /usr/bin/gpg-wks-server --cron
28 * * * * /var/lib/gnupg/wks/wks-maintance-script.sh
At this point, adding a new domain consists of adding a new, domain specific,
section to the already existing fetchmail.conf file, in the /var/lib/gnupg/wks/etc
directory. Then you must create new procmail-example.com.conf and
ssmtp-example.com.conf in the same directory so each file can find them.
Start out by going into the /var/lib/gnupg/wks/etc directory and modify the
fetchmail.conf file. Each domain must have its own section in the file similar
to the following.
poll "pop.googlemail.com" protocol pop3 auth password
username "[email protected]" is apprentice here
password '###### POP3 Password ######'
ssl sslproto tls1, sslcertck, idle
fetchall
nokeep
mda "/usr/bin/procmail -m /var/lib/gnupg/wks/etc/procmail-example.com.conf"
After you have added the needed section to fetchmail.conf, you need to create
the domains corresponding procmail-example.com.conf file.
The provided example procmail-example.conf files are a stable staring point,
just change the DOMAIN line to be the domain you wish to process and save the
the file accordingly.
DOMAIN=example.com
BASE=/var/lib/gnupg/wks
PATH=$HOME/bin:/usr/bin:/bin:/usr/local/bin
LD_LIBRARY_PATH=$HOME/lib
CORRECTHOME=${BASE}/mailstore/${DOMAIN}
MAILDIR=$CORRECTHOME/
PMDIR=${BASE}/mailstore/${DOMAIN}/procmail
LOGFILE=${BASE}/logs/procmail-${DOMAIN}.log
LOCKFILE=${PMDIR}/.lockmail
VERBOSE=on
:0
* ^FROM_DAEMON
from-daemon/
:0 c
archive/
:0 w
* !^From: wkd-submission@${DOMAIN}
* !^X-WKS-Loop: wks.${DOMAIN}
|/usr/local/bin/gpg-wks-server -v --receive \
--header X-WKS-Loop=wks.${DOMAIN} \
--from wkd-submission@${DOMAIN} \
|/usr/sbin/ssmtp -C ${BASE}/etc/ssmtp-${DOMAIN}.conf -t
:0 e
cruft/
And once you are finished with the procmail-example.com.conf file, you need
to create the domains corresponding ssmtp-example.com.conf file.
Finely after gpg-wks-server finishes its processing, it normally sends a
response to the sender. This is accomplished via ssmtp and the something
similar to the below ssmtp-example.com.conf file.
All you should have to change on this file is the AuthUser (username) and the AuthPass (password) and save it as the name the domains procemail config file is looking for.
root=wkd-submission
hostname=ns0.another-domain-or-the-same.com
mailhub=smtp.googlemail.com:587
FromLineOverride=YES
UseSTARTTLS=YES
[email protected]
AuthPass=###### SMTP Password ######
FromLineOverride=YES
This repository is licensed under the 3-Clause BSD License as seen below.
Copyright 2019 Matt Rude <[email protected]>
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice,
this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the copyright holder nor the names of its
contributors may be used to endorse or promote products derived from this
software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
POSSIBILITY OF SUCH DAMAGE.
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