We are right in the middle of our 5th season of the year – DevJam. It is always a lot of fun spending one week with people from all over the world on the campus of the University of Minnesota. I’ve put on my personal agenda for this week, spending time with the folks working on the way how we want to document our project. I try also to gather the project ideas and where they contribute the code to the project. Currently i try to get some updates from the progress through the opennms.eu page. We have the following topics on the list:

You find the current work of progress in the Github public code repository and the wiki pages get updated. If you want more direct contact. Please feel free to join the IRC channel on irc.freenode.net and join #opennms.

Happy hacking …

We have finished our 6th OpenNMS User Conference Europe. It was the first time we made a conference outside of Germany. We started with the first conference in 2009 when I worked at NETHINKS and begun with OpenNMS professional services. For the 3rd and 4th conference we decided to move the venue closer to the people organizing the conference and the IT center in Fulda was a really good place. In 2013 NETHINKS and the OpenNMS Foundation Europe worked together to move the organization of the conference to the community at the University of Applied Science in Fulda.

In 2014 we had our first conference out of Germany at the University of Southampton – United Kingdom, Great Britain, England, the Empire … whatever. We had attendees from 12 countries. The OpenNMS Group, Inc. showed the latest development sponsored to the project by commercial companies like the new Semantic Topology User Interface and the Operators Panel.

Additionally had a visit from three nice guys from OCS Inventory with an talk about OCS Inventory and practical workshop. The crowd around OpenNMS is really amazing and we finished with an open discussion about the OpenNMS project from a community perspective. We came also around documentation where have really some issues about. So I decided to give a short overview how other projects handle documentation. I’ve spent the last conferences with sitting in "How to contribute" talks from OpenStack and ElasticSearch and they do really a great job when it comes around the community.

Sorry if you missed this great opportunity having the possibility talking with a lot of great people. We got all slides and they are available in our conference system. As soon we received the videos we will upload them to our OpenNMS Youtube Channel.

Thanks to all attendees for the great time

If you have OpenNMS with RRDtool running, you can improve the whole rendering a little bit just by replacing the command.prefix in the following files:

  • snmp-graph.properties
  • snmp-adhoc-graph.properties
  • response-graph.properties
  • response-adhoc-graph.properties
command.prefix=/usr/bin/rrdtool graph - --imgformat PNG --font DEFAULT:7 --font TITLE:10 --start {startTime} --end {endTime} -E --width=1000 --height=180

I don’t like the stamp size graphs in OpenNMS, so I changed it for all. It could be problematic if you have grouped graph report (KSC report). So if you have trouble, you can just remove the –width and –height parameter. The command will also overwrite the width and height for all graphs, so they have all the same size. You have to be careful if you have KSC reports with multiple columns. If you have RRDtool running, you can improve the graphs with anti-aliasing using a few additional parameters:

command.prefix=/usr/bin/rrdtool graph - --imgformat PNG -R normal --font-render-mode normal -l 0 -E --font DEFAULT:7 --font TITLE:10 --start {startTime} --end {endTime} -c ARROW#5e5e5e --width=1000 --height=180
Default graph without anti-aliasing.
Default graph with anti-aliasing.


  • Ubuntu 12.10
  • Language: English
  • Keyboard Layout: English
  • Login: opennms
  • Pass: ouce2013

Admins toolbox

sudo -s
apt-get install openssh-server
apt-get install vim tcpdump git-core htop joe nmap iftop
apt-get install snmp snmpd snmp-mibs-downloader

Maven2 and Oracle Java 1.6

apt-get install maven2
wget http://files.opennms-edu.net/jdk-6u41-linux-x64.bin
chmod +x jdk-6u41-linux-x64.bin
mv jdk1.6.0_41 /opt
update-alternatives --install "/usr/bin/java" "java" "/opt/jdk1.6.0_41/bin/java" 1
update-alternatives --install "/usr/bin/javac" "javac" "/opt/jdk1.6.0_41/bin/javac" 1
update-alternatives --install "/usr/bin/javaws" "javaws" "/opt/jdk1.6.0_41/bin/javaws" 1
update-alternatives --install "/usr/bin/jar" "jar" "/opt/jdk1.6.0_41/bin/jar" 1
update-alternatives --install "/usr/lib/mozilla/plugins/mozilla-javaplugin.so" "mozilla-javaplugin.so" "/opt/jdk1.6.0_41/jre/lib/amd64/libnpjp2.so" 1
update-alternatives --config java

Some privacy and data leak stuff

apt-get remove unity-lens-shopping
System Settings -> Privacy Include Online Search results OFF / Record Activity OFF

Installing OpenNMS

update-alternatives --config java
vi /etc/apt/sources.list.d/opennms.list
deb http://debian.opennms.org stable main
deb-src http://debian.opennms.org stable main
wget -O - http://debian.opennms.org/OPENNMS-GPG-KEY | sudo apt-key add -
apt-get update
apt-get install opennms
echo "export JAVA_HOME=\"/opt/jdk1.6.0_41\"" >> /etc/profile
echo "export OPENNMS_HOME=\"/usr/share/opennms\"" >> /etc/profile
source /etc/profile
/usr/share/opennms/bin/runjava -s
vi /etc/postgresql/9.1/main/pg_hba.conf

host    all             all               trust
service postgresql restart
/usr/share/opennms/bin/install -dis
echo JAVA_HEAP_SIZE=768 >> /etc/opennms/opennms.conf
echo START_TIMEOUT=0 >> /etc/opennms/opennms.conf
service opennms start
apt-get install libwww-perl libxml-twig-perl

iReport installieren

cd ~
wget http://files.opennms-edu.net/iReport-3.7.6.tar.gz
tar xzf iReport-3.7.6.tar.gz
mv iReport-3.7.6 /opt
chown opennms:opennms /opt/iReport-3.7.6 -R
apt-get install --no-install-recommends gnome-panel
gnome-desktop-item-edit /usr/share/applications/ --create-new
Name: iReport 3.7.6
Binary: /opt/iReport-3.7.6/bin/ireport
Icon: gnome-power-statistics.png
Comment: Jasper Reports-Report Designer


cd ~/Pictures
wget http://files.opennms-edu.net/wallpaper/free-software-ulf.jpg
cd /usr/share/backgrounds
wget http://files.opennms-edu.net/warty-final-ubuntu-ouce.png
sudo -i
xhost +SI:localuser:lightdm
su lightdm -s /bin/bash
gsettings set com.canonical.unity-greeter draw-user-backgrounds 'false'
gsettings set com.canonical.unity-greeter draw-grid 'false'
gsettings set com.canonical.unity-greeter background '/usr/share/backgrounds/warty-final-ubuntu-ouce.png'


sudo apt-get install rrdtool


sudo -s
cd /root
wget http://files.opennms-edu.net/groovy-binary-2.1.1.zip
mv groovy-2.1.1 /opt
echo "export GROOVY_HOME=\"/opt/groovy-2.1.1\"" >> /etc/profile
source /etc/profile
ln -s /opt/groovy-2.1.1/bin/groovy /usr/local/bin/groovy
ln -s /opt/groovy-2.1.1/bin/groovyc /usr/local/bin/groovyc
ln -s /opt/groovy-2.1.1/bin/groovyConsole /usr/local/bin/groovyConsole
ln -s /opt/groovy-2.1.1/bin/groovysh /usr/local/bin/groovysh


wget http://files.opennms-edu.net/gradle-1.4-all.zip
unzip gradle-1.4-all.zip
mv gradle-1.4 /opt
echo "export GRADLE_HOME=\"/opt/gradle-1.4\"" >> /etc/profile
ln -s /opt/gradle-1.4/bin/gradle /usr/local/bin/gradle

Workshop: Rule based event processing

cd ~
git clone http://www.github.com/m-schneider/ouce2013
cd ouce2013/groovy
. ./setenv.sh
cd ./non-gradle

Output should look like:

Wed Mar 06 15:41:05 CET 2013 --- Current severity: 6
Wed Mar 06 15:41:05 CET 2013 --- Current priority: 2
Wed Mar 06 15:41:05 CET 2013 --- --- ---
Wed Mar 06 15:41:05 CET 2013 --- Changed severity: 7
Wed Mar 06 15:41:05 CET 2013 --- Changed priority: 1

SNMPv3 Workshop

sudo apt-get install wireshark
apt-get install libsnmp-perl libnet-snmp-perl libcrypt-des-perl  libcrypt-rijndael-perl libdigest-hmac-perl libdigest-sha-perl  libcrypt-passwdmd5-perl libdigest-md5-file-perl

Local Mailserver for notification

sudo apt-get install postfix
Set to: local only
postconf -e home_mailbox=Maildir/
sudo apt-get install dovecot-imapd
sudo vi /etc/dovecot/conf.d/10-mail.conf
File: /etc/dovecot/conf.d/10-mail.conf
mail_location = maildir:~/Maildir
Account: opennms@localhost
User: opennms
Pass: ouce2013
Server localhost
service dovecot restart
service postfix restart
Bluetooth deaktivieren:
sudo vi /etc/rc.local
rfkill block bluetooth