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Similarly, if you have a firewall on your server (e.g. iptables / firewalld ) you need to make sure that it accepts incoming HTTP (possibly HTTPS) connections, and SNMP traps and Syslog connections/packets. This involves incoming connections to TCP ports 80 and 443, and UDP ports 161, 162, and 514.
NMIS8 Installation
As of February 2016, NMIS is distributed in a self-extracting download format that simplifies the installation process quite a bit.
You can download NMIS from the Opmantek website at https://opmantek.com/network-tools-download/; the distribution file is called nmis<version>.run, and your browser will likely prompt you regarding what to do with this '.run' file; you should tell it to Save the file, ideally in /tmp.
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