...
iptables -L on your NMIS server, as well as /etc/selinux/config and the exit code of selinuxenabled.SNMPD, Net-SNMP and collecting stats of the NMIS server itself
NMIS8 ships with one default node configured for collection, primarily to prove it is all working. This node is called localhost and NMIS will collect statistics from your NMIS server using SNMP - if an SNMP agent is available, or just Ping statistics if not.
However, the installer does not automatically configure this local Net-SNMP daemon; if you would like to collect the NMIS server's statistics follow the instructions below - otherwise you're done with the installation.
You will likely want to consult and use the example configuration for Net-SNMP's snmpd, which ships with NMIS in the file <nmisdir>/install/snmpd.conf.
Because the installer has installed Net-SNMP for you already, you only need to backup its default config and move in the NMIS example one. You should very much modify this config to secure the SNMP read access according to your organisation's security policy!
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cd /usr/local/nmis8 mv /etc/snmp/snmpd.conf /etc/snmp/snmpd.conf.orig mv /etc/snmp/snmptrapd.conf /etc/snmp/snmptrapd.conf.orig cp install/snmpd.conf /etc/snmp/snmpd.conf cp install/snmptrapd.conf /etc/snmp cp install/snmptrapd.options /etc/sysconfig/snmptrapd # for CentOS/Red Hat only |
Debian/Ubuntu
The last command in the list above will fail as there is no /etc/sysconfig directory on this platform. Instead the snmptrap service is started by the snmpd service, and is enabled by updating the file /etc/default/snmpd with the following line:
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TRAPDRUN=yes |
Auto Start SNMP Daemons
Ensure that you tell your system to start snmpd and snmptrapd automatically on boot.
CentOS/RedHat 6
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# as root /sbin/chkconfig snmpd on /sbin/chkconfig snmptrapd on |
CentOS/RedHat 7
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# as root systemctl enable snmpd.service systemctl enable snmptrapd.service |
Debian/Ubuntu
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# as root update-rc.d snmpd defaults update-rc.d snmptrapd defaults service snmpd start service snmptrapd start |
Run a Test Update
Once your local snmpd is running, you should run a test update operation:
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sudo /usr/local/nmis8/bin/nmis.pl type=update node=localhost info=true |
The output will look similar to this example:
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Copyright (C) Opmantek Limited (www.opmantek.com) This program comes with ABSOLUTELY NO WARRANTY; This is free software licensed under GNU GPL, and you are welcome to redistribute it under certain conditions; see www.opmantek.com or email contact@opmantek.com NMIS version 8.5.6G 14:42:47 runPing, INFO (localhost) PING min/avg/max = /0.01/ ms loss=0% 14:42:47 runPing, Finished with exit=1, nodedown=false 14:42:47 getNodeInfo, Starting 14:42:47 getNodeInfo, sysObjectId=1.3.6.1.4.1.8072.3.2.10, sysObjectName=_linux ... 14:42:47 Number of Data Points: 17, Sum of Bytes: 136, RRDs updated: 1, Nodes with Updates: 1 14:42:47 End of nmis-Config-update-localhost Processed 1 nodes ran for 1 seconds. |
As the installer has already installed the default NMIS cron schedule NMIS will poll and collect all known nodes every 5 minutes. You can now either run a test collect or sit back and wait for NMIS to do the next one automatically:
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sudo /usr/local/nmis8/bin/nmis.pl type=collect info=true |
After that collect operation has concluded you should see the newest data for your NMIS server on the NMIS dashboard.
Setup
Acces NMIS and Start using and configuring
NMIS8 - A Quick Getting Started Guide
Advanced Installer Use
Access the source without installation
If you want to read the installer source, or access the distributed files without actual installation, then simply pass the arguments –-keep --noexec to the run file invocation, e.g.
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sh ./nmis8.5.12G.run --keep --noexec |
This tells the self-extracting installer to just unpack the archive (into the directory nmis<version>) and to not start the interactive installer component.
Install in a non-standard location
If you want the installer to install NMIS into a non-standard directory, change to invocation to include site=<somepath> (after a mandatory -- separator), e.g.
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sh ./nmis8.5.12G.run -- site=/opt/nmis |
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For more information regarding installing NMIS in a non default location please review NMIS8 - Installing NMIS in a Non Standard Location |
Only check and install dependencies
If you don't want to perform the actual installation but only perform the software dependency resolution and check and install any prerequisites, use listdeps=true (after a -- separator), e.g.
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sh ./nmis8.5.12G.run -- listdeps=true |
Non-interactive, automatic installation/upgrade
If your NMIS 8.5.12 was downloaded after 2016-07-11, then the installer also offers a non-interactive automatic mode, where all the normal questions are automatically answered with the default choice.
To use this mode, simply pass in -y (somewhere after the mandatory -- separator), e.g.
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sh ./nmis8.5.12G.run -- -y # recommended for safety: wrapped in screen with output logging on screen -L sh ./nmis8.5.12G.run -- -y |
Installation Log
The installer creates a log of all the operations that it performs, which is saved in the main NMIS installation directory as install.log. Subsequent NMIS upgrades add extra information to that log file, but the installer always starts its work with an initial log message that indicates when an installation/upgrade was performed. It is safe to delete the installer log file if you don't want to keep old installation and upgrade info.
Historical Manual Installation Instructions
The old manual installation instructions are available for your perusal on this page. Please note that these old instructions are no longer updated and will definitely diverge more or less from current best practice! (which is to let the installer handle the installation intricacies on your behalf).