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Install to Debian (optional)Install to Debian (optional) — How to install milter manager related softwares to Debian GNU/Linux |
About this document
This document describes how to install milter manager related softwares to Debian GNU/Linux. See Install to Debian for milter manager install information and Install for general install information.
Install milter-manager-log-analyzer
milter-manager-log-analyzer is already installed because it is included in milter manager's package. We will configure Web server to browse graphs generated by milter-manager-log-analyzer.
There are two ways to view generated graphs; (1) view them via a Web server at the same host and (2) view them via Munin (and a Web server) at other host. If we already have Munin or exclusive system monitoring server, Munin is a better way. Otherwise, a Web server at the same host is a better way. [3]
First, a way that a Web server in the same host will be explained, then a way that using Munin will be explained.
Way 1: View via a Web server at the same host
Configure milter-manager-log-analyzer
milter-manager-log-analyzer generates graphs into milter-manager user's home directory. (/var/lib/milter-manager/) We configure Web server to publish them at http://localhost/milter-manager-log/.
% sudo -u milter-manager mkdir -p ~milter-manager/public_html/log
We put /etc/apache2/conf.d/milter-manager-log with the following content:
Alias /milter-manager-log/ /var/lib/milter-manager/public_html/log/
We need to reload configuration after editing:
% sudo /etc/init.d/apache2 force-reload
Now, we can see graphs at http://localhost/milter-manager-log/.
Install packages
We install milter-manager-munin-plugins package that provides statistics data collected by milter-manager-log-analyzer to Munin:
% sudo apt -y install milter-manager-munin-plugins
NOTE: We need to use databases created by milter-manager-log-analyzer bundled with milter manager 1.5.0 or later to provide statistics data to Munin. If we have databases that are created by older milter-manager-log-analyzer, we need to remove ~milter-manager/public_html/log/. If we remove the directory, milter-manager-log-analyzer re-creates statistics databases 5 minutes later.
Configure munin-node
Munin-node should accept accesses from Munin server. If Munin server is 192.168.1.254, we need to append the following lines to /etc/munin/munin-node.conf:
/etc/munin/munin-node.conf:
allow ^192\.168\.1\.254$
We need to restart munin-node to apply our configuration:
% sudo /usr/sbin/service munin-node restart
Configure Munin server
Works in this section at system monitor server. We assume that system monitor server works on Debian GNU/Linux.
First, we install munin and Apache:
monitoring-server% sudo apt -y install munin apache2
We add our mail server that works munin-node to munin's monitor target. We assume that mail server has the following configuration:
We need to add the following lines to /etc/munin/munin.conf to add the mail server:
/etc/munin/munin.conf:
[mail.example.com]
address 192.168.1.2
use_node_name yes
We will be able to view graphs at http://monitoring-server/munin/ 5 minutes later.
Conclusion
We can confirm milter's effect visually by milter-manager-log-analyzer. If we use Postfix as MTA, we can compare with Mailgraph 's graphs to confirm milter's effect. We can use graphs generated by milter-manager-log-analyzer effectively when we are trying out a milter.
