INSTALLING OPENNMS

OpenNMS is the world's first enterprise-grade network management system developed under the open source model. As with any complex and powerful system, getting it installed and configured can take a little effort.

Minimum Requirements
--------------------

* A 1 GHz Pentium III (or equivalent processor) or better. OpenNMS can also take advantage of multiple processors.

* A minimum of 256 MB of RAM, although 512 MB is strongly recommended. The OpenNMS Java Virtual Machine benefits from large amounts of memory, up to 2 GB, and more if using a 64-bit processor.

* OpenNMS requires about 200 MB of disk space for the program files. In addition, each data variable collected requires, by default, a little under 300 KB of disk space.


Configure RPM-based Distributions with Yum
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[root@localhost ~]# yum install yum-fastestmirror


Install the OpenNMS Repository RPM
-----------------------------------

rpm -Uvh http://yum.opennms.org/repofiles/opennms-repo-snapshot-fc7.noarch.rpm

Or, to install the latest unstable release on CentOS or RHEL 5, you would run:

rpm -Uvh http://yum.opennms.org/repofiles/opennms-repo-unstable-rhel5.noarch.rpm

Installing Java on RPM-based Distributions Using Yum
----------------------------------------------------

[root@localhost ~]# yum install jdk


Installing PostgreSQL on RPM-Based Distributions Using Yum
----------------------------------------------------------

[root@localhost ~]# yum -y install postgresql-server


Configure PostgreSQL
--------------------

Locate the Postgres "data" directory. Often this is /var/lib/pgsql/data. You should then find the two files we need to modify in that directory.

First we need to make sure PostgreSQL is listening on an IP socket, and not just a local unix socket.


Edit postgresql.conf File and add the following.

listen_addresses = 'localhost'

max_connections = 256

max_connections = 256



Customizing the pg_hba.conf File
--------------------------------

Add the below lines.

# TYPE DATABASE USER IP-ADDRESS IP-MASK METHOD
local all all trust
host all all 127.0.0.1 255.255.255.255 trust
host all all ::1 ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff trust


Creating the PostgreSQL Database
---------------------------------


# /etc/init.d/potgresql start


Installing JICMP on RPM-Based Distributions Using YUM
-----------------------------------------------------


[root@localhost ~]# yum install jicmp



Installing OpenNMS
------------------
------------------


[root@localhost ~]# yum install opennms-*

Configure Java for OpenNMS
--------------------------

[root@localhost ~]# /opt/opennms//bin/runjava -s


The desired outpu is given below:


runjava: Looking for an appropriate JRE...
runjava: Checking for an appropriate JRE in JAVA_HOME...
runjava: skipping... JAVA_HOME not set
which: no java in (/usr/lib/qt-3.3/bin:/usr/kerberos/sbin:/usr/kerberos/bin:/usr/lib/ccache:/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/opt/opennms/bin:/root/bin)
runjava: did not find a JRE in user's path
runjava: searching for a good JRE...
runjava: found a good JRE in "/usr/java/jdk1.5.0_18/bin/java"
runjava: value of "/usr/java/jdk1.5.0_18/bin/java" stored in configuration file
You have new mail in /var/spool/mail/root


Configure a specific JRE
-------------------------


If you need to configure specific JRE do the following:

[root@localhost]# /opt/opennms/bin/runjava -S


Run the OpenNMS Installer Application
-------------------------------------

[root@localhost ~]# /opt/opennms/bin/install -l /usr/local/lib -dis




Login to the Web Application
-----------------------------

By default, OpenNMS's built-in web server listens on port 8980, so point your browser at http://:8980/opennms/


The initial user name is "admin" and the password is "admin".

Enjoyyyy...............


If you need any further assistance. Ping me

Email: vasanth462@gmail.com